McQuay Rooftop Water Source Heat Pumps Catalog 1106

Transcription

1 McQuay Rooftop Water Source Heat Pumps Catalog 06 Model RWA, RGA Downflow Discharge and Return Model, RWC, RGC Horizontal Discharge and Return Unit Sizes 036 R-A Refrigerant Model RWA Engineered for flexibility and performance

2 McQuay is a registered trademark of McQuay International. McQuay International 0. All rights reserved throughout the world. The information in this catalog supersedes and replaces previous catalogs with regard to McQuay Terminal Air Conditioning products. Illustrations cover the general appearance of McQuay products at the time of publication and McQuay reserves the right to make changes in design and construction at anytime without notice.

3 Contents Model RWA, RGA Downflow Discharge and Return & Model RWC, RGC - Horizontal Discharge and Horizontal Return... 4 Standard Features:... 4 Optional Features:... 4 Model Nomenclature... 4 Design Features... 5 Standard Design Features Heavy Duty Cabinet... 5 Paint Finish... 5 Compressor... 5 Compressor Protection... 5 Separate Refrigeration Circuits... 5 Indoor Air Coil... 5 The Coaxial Water Coil... 5 Air and Water Proving Switches... 5 Evaporator Blower and Motor... 6 Refrigeration Circuit... 6 Electromechanical Controls... 6 Terminal Board Connections... 6 Filters... 6 Sloped Stainless Steel IAQ Condensate Drain Pan... 6 Power Entry... 6 Multiple Refrigeration Circuit... 6 Optional Features... 7 Harsh Environment Construction... 7 Electrical... 7 Humidity Control... 7 Cupro-Nickel Coaxial Water Coil... 7 Economizer... 7 Installation and Application Unit Location - General... 7 Unit Location - Rooftop... 7 Unit Location - Slab... 8 Clearances... 8 Ductwork... 8 Condensate Piping... 8 Electrical... 8 Independent Power Source... 8 Main Power Wiring... 8 Performance Data ISO Performance Data Water Loop... 9 ISO Performance Data Ground Loop... 0 Electrical Data Sizes Sizes Sizes Capacity Data... 5 Cooling and Heating Capacities Models RWA, RGA, RWC, RGC Size Size Size Size Size Size Size 0... Size... Size... 3 Size Size Size... 6 Size Size Size... 9 Performance Data Cooling Correction Factors Fan Motor Performance Sizes Sizes Sizes Sizes Physical Data Models RWA, RGA, RWC, RGC Dimensional Data Model RWA, RGA Size Model RWA, RGA Size Model RWA, RGA Size Model RWC, RGC Size Model RWC, RGC Size Model RWC, RGC Size " High Roof Curb Size " High Roof Curb Size " High Roof Curb Size " High Roof Curb Size Engineering Guide Specifications Model RWA, RGA Downflow Discharge and Return & Model, RWC, RGC Horizontal Discharge and Horizontal Return CAT 06 Page 3 of 48

4 McQuay R-A Rooftop Water Source Heat Pumps Model RWA, RGA Downflow Discharge and Return & Model RWC, RGC - Horizontal Discharge and Horizontal Return Standard Features: Heavy duty cabinet construction Downflow and horizontal discharge arrangements Supply fan with seismic spring vibration isolation Rated in accordance with ARI ISO to 35 ton (4 to 3 kw) capacity Multiple fan motor sizes Multiple access panels Fully insulated double-wall construction Crankcase heaters Electromechanical controls Sloped stainless steel drain pan Multiple refrigerant circuits, 8 tons (8 kw) and up Factory tested Certified UL/ANSI standards by ETL R-A refrigerant Optional Features: Hot gas reheat Cupro-nickel inner tube heat exchanger Hot gas by-pass on the lead circuit Water regulating valve (see Note ) Harsh environment corrosion protection Full perimeter roof curb Geothermal operation Economizer with enthalpy changeover control 0-0 VDC modulating actuator for control by others Factory wired 5 volt GFCI receptacle with 5 amp breaker Firestat located in the return air stream with manual reset limit control Integral power disconnect for applications up to 00 amps Note:. If a barometric damper is required, the WRWC and WRGC (with horizontal supply and return) unit must use a field-furnished and installed barometric damper. This is because the horizontal supply/return unit economizer covers up the barometric relief on the unit.. For entering water temperatures below F ( C), the optional water regulating valve must be selected as a factory installed option. Model Nomenclature W RWA 036 E F Y Product Category W = WSHP Product Identifier RWA = Rooftop Downflow Water Source Heat Pump RWC = Rooftop Horizontal Water Source Heat Pump RGA = Rooftop Downflow WSHP (Geothermal Unit) RGC = Rooftop Horizontal WSHP (Geothermal Unit) Design Series = st Design = nd Design 3 = 3rd Design 4 = 4th Design Cabinet Height Y = None Voltage F = 08-30//3 K = 4//3 L = 575//3 Controls E = Electromechanical Nominal Capacity 036 = 36,000 Btuh Nominal Cooling 048 = 48,000 Btuh Nominal Cooling 0 =,000 Btuh Nominal Cooling 07 = 7,000 Btuh Nominal Cooling 084 = 84,000 Btuh Nominal Cooling 096 = 96,000 Btuh Nominal Cooling 0 = 0,000 Btuh Nominal Cooling =,000 Btuh Nominal Cooling =,000 Btuh Nominal Cooling 0 = 0,000 Btuh Nominal Cooling 00 = 00,000 Btuh Nominal Cooling =,000 Btuh Nominal Cooling 300 = 300,000 Btuh Nominal Cooling 3 = 3,000 Btuh Nominal Cooling =,000 Btuh Nominal Cooling Note: For illustration purposes only. Not all options available with all models. Please consult McQuay Sales Representative for specific availability. Page 4 of 48 CAT 06

5 Design Features Application Packaged curb-mounted vertical discharge or horizontal discharge and return water-to-air heat pump air conditioners are an excellent choice for a multitude of building applications ranging in unit sizes from 3 to 35 tons. Versatile for new building construction or retrofit projects from offices, schools, health care and retirement facilities to restaurants, hotels, motels, and industrial operations. The RWA and RWC models are normally used with a water loop system utilizing a cooling tower and boiler, this unit is designed to operate with entering water temperatures between 55 F and 95 F. The RGA and RGC models are rated for ground loop heat exchanger application with entering fluid temperature between 30 F and 00 F. All units are rated in accordance with ARI Standard ISO These outdoor roof mounted units are positioned on the roof curb, above the conditioned space, for minimal field ductwork. Roof curbs are available as a field-installed accessory. After assembly each unit is charged and run tested in both the heating and cooling cycles for reliable operation. Units are certified and conform to UL/ANSI Standards by ETL. Model RWA Unit Standard Design Features Heavy Duty Cabinet All models are constructed of G-90 galvanized steel. Gasketed access doors are 0-gauge steel with ", 4-pound density closed cell insulation and a 4-gauge galvanized steel liner. Standard outer panels are insulated with " 4-pound density closed cell foam insulation with a 4-gauge galvanized steel interior liner. Service access doors are mounted with stainless steel hinges and equipped with one-quarter turn cam operated adjustable compression type latches. The underside of the base panel is insulated with 3/8" closed cell foam insulation. Paint Finish The unit is constructed of hot dipped galvanized G-90 steel that is chemically treated with zinc phosphate, coated with 0. to 0.3 MIL polyurethane primer then finished with 0.7 to 0.8 MIL polyester top coating. Compressor Units equipped with scroll compressors selected for their reliability and high efficiency. Compressor mountings are designed to reduce vibration transmission to the unit structure and minimize piping stress. Compressor Protection All compressors have crankcase heaters and internal overheat protection. Separate Refrigeration Circuits Multiple refrigeration circuits are standard on sizes 096 thru. Multi compressor models provide the added benefit of partial standby. Also, they provide two-stage operation with one compressor being activated from the first stage of the two-stage space thermostat on the cooling cycle. On the heating cycle, all compressors are activated by the first stage of the space thermostat. Indoor Air Coil The indoor air coils have aluminum fins formed on multiple rows of seamless copper tubing arranged in a staggered tube configuration. The tubes are mechanically expanded, firmly bonding the tube to the collar of each fin. The Coaxial Water Coil The Coaxial Water Coil consists of an enhanced surface inner copper tube with outer steel tube (tube-in-tube). Water connections are stubbed off inside the cabinet. Field piped return and supply water lines enter through individual sleeves in the compressor base pan section after passing through the roof curb. Units are shipped with water pressure taps and upper elbows for easy connection to the water source. RGA and RGC models are equipped with fully insulated refrigerant and water lines and an insulated coaxial water coil. Air and Water Proving Switches An air proving switch prevents system operation unless there is proof of blower operation. The water proving switch prevents system operation if there is no fluid flow through the coaxial heat exchanger. CAT 06 Page 5 of 48

6 Design Features Evaporator Blower and Motor All units (sizes 036-) are fitted with a DWDI forward curved fan assembly mounted on spring vibration isolation. A slide out deck allows for blower assembly removal from the cabinet to service or inspect. The shaft is belt driven with adjustable drive sheave connected to an open drip proof motor with sealed ball bearings. Adjustable V-belt drives provide a minimum rating of % of the motor nameplate brake horsepower when the adjustable pulley is at the minimum RPM. The bearings on both the blower shaft and motor are permanently lubricated. Terminal Board Connections Terminal boards are furnished for 4-volt thermostat connections on units. Evaporator Access Refrigeration Circuit The refrigerant system(s) operate with R-A refrigerant and include the compressor, crankcase heater, copper-tube, aluminum finned condenser and evaporator coils. The refrigerant circuit includes filter/drier, high pressure safety control (manual-reset), low pressure control/loss of charge protector (auto-reset), dual gauge connections for high and low pressure readings and thermal expansion valve with adjustable superheat. The condensing section of the unit is integral to the unit. Electromechanical Controls Unit electrical power entry is through the curb. The starter/ control panel includes a programmable logic controller and a complete modular, integrated motor control system mounted on din rails. All safety and operating controls shall be factory mounted. The system includes all relays, fan contactors, compressor contactors, and power distribution. The 4-volt control circuit includes a transformer and low voltage terminal strip for interface with a control system. Filters All models are shipped with -inch thick disposable glass fiber media filters mounted in a factory installed flat filter rack on the return air opening. The standard filter rack is capable of using " filters, 4" filters or " pre-filters and 4" after filters. Sloped Stainless Steel IAQ Condensate Drain Pan The condensate drain pan is double-sloped to comply with ASHRAE Standard 6-089R and fabricated from stainless steel. The bottom is insulated with closed cell neoprene insulation. Condensation may be drained from a MPT drain fitting positioned at the exterior of the cabinet. Power Entry A chase is installed in the curb, directly under the electricalcontrol section to bring power wiring inside the curb, preventing a separate roof penetration. The sleeve must be sealed after wiring is completed with suitable mastic to prevent water from entering the space. Power entering through the curb is standard in all models. Multiple Refrigeration Circuit Unit sizes 096 and larger use two separate refrigeration circuits. This design offers two stages of cooling for load shedding when conditions allow. Multiple compressors on independent circuits also offer the added benefit of continuous operation in the event of a failure in one of the circuits. Page 6 of 48 CAT 06

7 Design Features Optional Features Harsh Environment Construction Thermoguard condenser coil coating with antimicrobial agent for unit cabinet, base pan, evaporator and condenser coils Electrical Clogged Filter Indicator (Filter Differential Gauge) Dirty or clogged filters are indicated when the preset pressure differential across the filters is reached. The indicator is factory installed and is manually reset. It includes contacts for remote indication. Firestat This control, mounted in the return air section, de-energizes the unit when return air reaches 35 F. The firestat is a manual reset control. 5-Volt Ground Fault Circuit Interrupter (GFCI Receptacle A 5-volt GFCI receptacle mounted in a " x 4" enclosure and is furnished with a 5 amp circuit breaker. Separate 5- volt power source and ground is required. Humidity Control Hot Gas Bypass Hot gas bypass is a means of capacity control during lower ambient temperature conditions. The Hot Gas Bypass valve is an adjustable valve and should be set to open when the refrigerant suction pressure drops to 07- psig. It varies unit capacity by introducing discharge refrigerant into the evaporator circuit where it creates a false evaporator load. The hot gas is cooled prior to its return to the compressor as it passes through the evaporator. The Hot Gas Bypass Solenoid Valve is energized through the thermostat and routs discharge gas to the hot gas bypass valve. It is de-energized during the pump down cycle. Hot Gas Reheat with Water Regulating Valve (WRV) Hot gas reheat (HGRH) helps to maintain specific humidity and temperature levels in a conditioned space by cooling, dehumidifying and then re-heating the air. The modulating HGRH provides superior temperature control compared to typical "on-off" HGRH. HGRH includes a water regulating valve to maintain head pressure by adjusting water flow. Hot gas reheat requires use of a conventional field supplied humidistat. Cupro-Nickel Coaxial Water Coil Cupro-nickel inner tube, steel outer tube water to refrigerant heat exchanger Economizer With Enthalpy Changeover 0-0 VDC Modulating Actuator (Controls by others) Installation and Application McQuay WRWA/WRWC units are designed for rooftop or slab mounted installations. Unit Location - General Avoid locations next to exhaust fans or flues. Select a location where external water drainage cannot collect around the unit. Locate the unit as near as possible to the center of the area to be environmentally controlled. Other considerations such as unit supports, roof opening, roof curb flashing, drain requirements, and power supply locations should be checked and verified. Unit Location - Rooftop Structural members supporting the unit must be sufficiently strong for the weight of the unit and mounting rails. Transmission of sound into the building is sometimes a problem when the structure is not strong enough. Units with vertical returns are available with a 4" high solid bottom roof curb. Units with horizontal supply and return air duct connections are made with the use of a 4" high solid bottom roof curb. Rooftop curbs are sold separately as an option. Proper installation for the RTU requires that the roof curb be firmly and permanently attached to the roof structure. Check for adequate fastening method prior to setting rooftop unit on curb. Inspect roof curb to insure that none of the utility services (electric, gas, drain lines) routed through the curb protrude above the curb. Duct connections should be made before unit is set on roof curb. Being a fully welded solid bottom curb, duct openings are to be sized and cut by the installing contractor. Tie down kits are required when the units are mounted on roof curbs and will be included with every unit. See installation instructions included with the tie down kit. Rooftop units also require the installation of an equipment support rail in addition to the roof curb. CAT 06 Page 7 of 48

8 Installation and Application Unit Location - Slab When installed at ground level, the unit should be mounted on a level concrete slab which should extend at least " beyond the unit on all sides. The top of the slab should be " above the ground level. Where snowfall is anticipated, mount the unit above the maximum snow depth for the area. The depth of the slab below the ground level and its structural design is governed by the type of soil and climatic conditions. The slab must not be in contact with any part of the building wall or foundation. The space between the slab and building wall prevents the possibility of transmitting vibration to the building. The dimensions of the slab or roof mount should be checked and verified before the equipment arrives. Locate the unit so roof runoff water does not pour directly on the unit. Provide gutter or other shielding at roof level. Do not locate the unit under an overhang that will short circuit hot air to the coil intakes. Clearances A clearance of 4"- 36" must be allowed for service and maintenance access to the compressor and electrical panel Sufficient clearance must be available for service, edge of roof, other units, or hazards. Adequate clearance around the unit must be kept for safety, accessibility, service and maintenance. 48 inches clearance is required on the control end of the unit. This clearance must also be maintained for compressor removal. A 48 inch clearance is also required on the (outside air) end of the unit for blower removal and for adequate outside air accessibility. All combustible materials must be kept out of the area. Figure : Unit Clearance Area Supply Fan 36" 48" Control Panel 4" - 36" Outside Air Intake Hood 48" Ductwork Properly sized and installed ductwork is critical to reliable performance of the unit and system. All ductwork must be installed according to local codes, practices and requirements. All duct connections with the use of a curb are to be field sized and cut. Industry manuals should be used as a guide to size and design the duct system. Ducts passing through unconditioned spaces must be well insulated and include a vapor barrier to prevent condensation from forming. Condensate Piping A condensate trap must be installed. Trap must be primed before operating unit. Units with high internal and external static pressure drops will require a deeper trap. If condensate is to be piped into the building drainage system, the drain line must penetrate the roof external to the unit. Refer to local codes for additional requirements. Drainage of condensate directly onto the roof is acceptable if permitted by local codes. A small drip pad of either stone, tar, wood or metal should be provided to prevent any possible damage to the roof. Electrical Wiring Connections Power wiring should be connected to the main power terminal block located within the main control section. Power wiring connections on units with factory disconnects should be made at the line side of the disconnect switch. Low voltage wiring connections are made to the remote mounted controller or time clock. Independent Power Source It is recommended that an independent 5-volt power source be brought to the vicinity of the rooftop unit for portable lights and tools used by the service mechanic. Main Power Wiring The units are factory wired for the voltage shown on the nameplate. Make sure main power wiring is sized for the minimum wire ampacity shown on the nameplate. An external weather-tight disconnect switch properly sized for the unit total load is required for each unit. Disconnect must be installed in accordance with local and/or national electric codes. Power wiring may enter the unit through the base pan and roof curbs on all models. Install conduit connectors at the entrance locations. External connectors must be weatherproof. Condensate Drain Pan Filter Access Page 8 of 48 CAT 06

9 ISO Performance Data Water Loop Table : Models RWA, RWC Performance Data Unit Air Flow Water Flow Cooling Heating Voltage Size CFM L/s GPM L/s BTU/Hr Watts EER BTU/Hr Watts COP Notes: EER = Energy Efficiency Ratio; COP = Coefficient of Performance. Cooling capacity is based on.6 F (7 C) db, 66. F (9 C) wb entering air temperature and 86 F (30 C) entering, 95 F (35 C) leaving water temperature. Heating capacity based on 68 F (0 C) db entering air temperature and 68 F (0 C) entering water temperature. Net capacities include fan motor heat. CAT 06 Page 9 of 48

10 Performance Data ISO Performance Data Ground Loop Table : Models RGA, RGC Unit Air Flow Water Flow Cooling Heating Voltage Size CFM L/s GPM L/s BTU/Hr Watts EER BTU/Hr Watts COP Notes: EER = Energy Efficiency Ratio; COP = Coefficient of Performance. Cooling capacity is based on.6 F (7 o C) db, 66. F (9 C) wb entering air temperature and 77 F (5 C) entering, 87 F (3 C) leaving water temperature. Heating capacity based on 68 F (0 C) db entering air temperature and 3 F (0 C) entering water temperature. Net capacities include fan motor heat. Page 0 of 48 CAT 06

11 CAT 06 Page of 48 Unit Size Fan Motor Power Compressor Fan Motor Total Unit Min./Max. Min. Circuit Max Fuse HP Voltage-Hz-Phase Qty RLA (each) LRA (each) FLA FLA Volts Ampacity Size Electrical Data Models RWA, RGA, RWC, RGC, Sizes Table 3: Models RWA, RGA, RWC, RGC, Size /0 87/0 44/6 87/0 87/0 44/6 87/0 87/0 44/6 87/0 87/0 44/6 87/0 87/0 44/6 87/0 87/0 44/6 87/0 87/0 44/6 87/0 87/0 44/6 87/0 87/0 44/6 87/0 87/0 44/6 87/0 87/0 44/6 87/0 87/0 44/6 87/0 87/0 44/6 58/63 87/0 87/0 44/6 58/63 87/0 87/0 44/6 58/63 87/0 87/0 44/6 87/0 87/0 44/6 87/0 87/0 44/6 87/0 87/0 44/6 87/0 87/0 44/

12 Page of 48 CAT 06 Electrical Data Unit Size Fan Motor Power Compressor Fan Motor Total Unit Min./Max. Min. Circuit Max Fuse HP Voltage-Hz-Phase Qty RLA (each) LRA (each) FLA FLA Volts Ampacity Size /0 87/0 44/6 58/63 87/0 87/0 44/6 58/63 87/0 87/0 44/6 58/63 87/0 87/0 44/6 58/63 87/0 87/0 44/6 87/0 87/0 44/6 58/63 87/0 87/0 44/6 58/63 87/0 87/0 44/6 58/63 87/0 87/0 44/6 58/63 87/0 87/0 44/6 58/63 87/0 87/0 44/6 58/63 87/0 87/0 44/6 58/63 87/0 87/0 44/6 58/63 87/0 87/0 44/6 58/ Sizes Table 4: Models RWA, RGA, RWC, RGC, Sizes 084-0

13 CAT 06 Page 3 of 48 Electrical Data Unit Size Fan Motor Power Compressor Fan Motor Total Unit Min./Max. Min. Circuit Max Fuse HP Voltage-Hz-Phase Qty RLA (each) LRA (each) FLA FLA Volts Ampacity Size /0 87/0 44/6 58/63 87/0 87/0 44/6 58/63 87/0 87/0 44/6 58/63 87/0 87/0 44/6 58/63 87/0 87/0 44/6 58/63 87/0 87/0 44/6 58/63 87/0 87/0 44/6 58/63 87/0 87/0 44/6 58/63 87/0 87/0 44/6 58/63 87/0 87/0 44/6 58/63 87/0 87/0 44/6 58/63 87/0 87/0 44/6 58/63 87/0 87/0 44/6 58/63 87/0 87/0 44/6 58/ Sizes -00 Table 5: Models RWA, RGA, RWC, RGC, Sizes -00

14 Page 4 of 48 CAT 06 Electrical Data Unit Size Fan Motor Power Compressor Fan Motor Total Unit Min./Max. Min. Circuit Max Fuse HP Voltage-Hz-Phase Qty RLA (each) LRA (each) FLA FLA Volts Ampacity Size /0 87/0 44/6 58/63 87/0 87/0 44/6 58/63 87/0 87/0 44/6 58/63 87/0 87/0 44/6 58/63 87/0 87/0 44/6 58/63 87/0 87/0 44/6 58/63 87/0 87/0 44/6 58/63 87/0 87/0 44/6 58/63 87/0 87/0 44/6 58/63 87/0 87/0 44/6 58/63 87/0 87/0 44/6 58/63 87/0 87/0 44/6 58/63 87/0 87/0 44/6 58/63 87/0 87/0 44/6 58/63 87/0 87/0 44/6 58/ Sizes - Table 6: Models RWA, RGA, RWC, RGC, Sizes -

15 Capacity Data Cooling and Heating Capacities Models RWA, RGA, RWC, RGC Size 036 Table 7: Cooling Total Sensible Heat EWT( F) gpm cfm Capacity Capacity Watts Rejected Table 8: Heating EWT( F) gpm cfm Heating Capacity Watts Heat Absorpted Notes:. Cooling capacities shown are based on F DBT / 67 F WBT entering air coil conditions.. Cooling capacities shown are gross capacities. For net capacities, multiply blower BHP (Break Horse Power) required times,545 and subtract from total and sensible in tables. 3. Typical of all heating and cooling capacitiy tables. Apply the cooling correction factors found on page For entering water temperatures below F ( C), the optional water regulating valve must be selected as a factory installed option. CAT 06 Page 5 of 48

16 Capacity Data Size 048 Table 9: Cooling Total Sensible Heat EWT( F) gpm cfm Capacity Capacity Watts Rejected Table 0: Heating EWT( F) gpm cfm Heating Capacity Watts Heat Absorpted Notes:. Cooling capacities shown are based on F DBT / 67 F WBT entering air coil conditions.. Cooling capacities shown are gross capacities. For net capacities, multiply blower BHP (Break Horse Power) required times,545 and subtract from total and sensible in tables. 3. Typical of all heating and cooling capacitiy tables. Apply the cooling correction factors found on page Page 6 of 48 CAT 06

17 Capacity Data Size 0 Table : Cooling Total Sensible Heat EWT( F) gpm cfm Capacity Capacity Watts Rejected Table : Heating EWT( F) gpm cfm Heating Capacity Watts Heat Absorpted Notes:. Cooling capacities shown are based on F DBT / 67 F WBT entering air coil conditions.. Cooling capacities shown are gross capacities. For net capacities, multiply blower BHP (Break Horse Power) required times,545 and subtract from total and sensible in tables. 3. Typical of all heating and cooling capacitiy tables. Apply the cooling correction factors found on page For entering water temperatures below F ( C), the optional water regulating valve must be selected as a factory installed option CAT 06 Page 7 of 48

18 Capacity Data Size 07 Table 3: Cooling Total Sensible Heat EWT( F) gpm cfm Capacity Capacity Watts Rejected Table 4: Heating EWT( F) gpm cfm Heating Capacity Watts Heat Absorpted Notes:. Cooling capacities shown are based on F DBT / 67 F WBT entering air coil conditions.. Cooling capacities shown are gross capacities. For net capacities, multiply blower BHP (Break Horse Power) required times,545 and subtract from total and sensible in tables. 3. Typical of all heating and cooling capacitiy tables. Apply the cooling correction factors found on page 30. Page 8 of 48 CAT 06

19 Capacity Data Size 084 Table 5: Cooling Total Sensible Heat EWT( F) gpm cfm Capacity Capacity Watts Rejected Table 6: Heating EWT( F) gpm cfm Heating Capacity Watts Heat Absorpted Notes:. Cooling capacities shown are based on F DBT / 67 F WBT entering air coil conditions.. Cooling capacities shown are gross capacities. For net capacities, multiply blower BHP (Break Horse Power) required times,545 and subtract from total and sensible in tables. 3. Typical of all heating and cooling capacitiy tables. Apply the cooling correction factors found on page For entering water temperatures below F ( C), the optional water regulating valve must be selected as a factory installed option. CAT 06 Page 9 of 48

20 Capacity Data Size 096 Table 7: Cooling Table 8: Heating Total Sensible Heat EWT( F) gpm cfm Capacity Capacity Watts Rejected EWT( F) gpm cfm Heating Capacity Watts Heat Absorpted Notes:. Cooling capacities shown are based on F DBT / 67 F WBT entering air coil conditions.. Cooling capacities shown are gross capacities. For net capacities, multiply blower BHP (Break Horse Power) required times,545 and subtract from total and sensible in tables. 3. Typical of all heating and cooling capacitiy tables. Apply the cooling correction factors found on page 30. Page 0 of 48 CAT 06

21 Capacity Data Size 0 Table 9: Cooling Table 0: Heating Total Sensible Heat EWT( F) gpm cfm Capacity Capacity Watts Rejected EWT( F) gpm cfm Heating Capacity Watts Heat Absorpted Notes:. Cooling capacities shown are based on F DBT / 67 F WBT entering air coil conditions.. Cooling capacities shown are gross capacities. For net capacities, multiply blower BHP (Break Horse Power) required times,545 and subtract from total and sensible in tables. 3. Typical of all heating and cooling capacitiy tables. Apply the cooling correction factors found on page For entering water temperatures below F ( C), the optional water regulating valve must be selected as a factory installed option CAT 06 Page of 48

22 Capacity Data Size Table : Cooling Total Sensible Heat EWT( F) gpm cfm Capacity Capacity Watts Rejected Table : Heating EWT( F) gpm cfm Heating Capacity Watts Heat Absorpted Notes:. Cooling capacities shown are based on F DBT / 67 F WBT entering air coil conditions.. Cooling capacities shown are gross capacities. For net capacities, multiply blower BHP (Break Horse Power) required times,545 and subtract from total and sensible in tables. 3. Typical of all heating and cooling capacitiy tables. Apply the cooling correction factors found on page 30. Page of 48 CAT 06

23 Capacity Data Size Table 3: Cooling Total Sensible Heat EWT( F) gpm cfm Capacity Capacity Watts Rejected Table 4: Heating EWT( F) gpm cfm Heating Capacity Watts Heat Absorpted Notes:. Cooling capacities shown are based on F DBT / 67 F WBT entering air coil conditions.. Cooling capacities shown are gross capacities. For net capacities, multiply blower BHP (Break Horse Power) required times,545 and subtract from total and sensible in tables. 3. Typical of all heating and cooling capacitiy tables. Apply the cooling correction factors found on page For entering water temperatures below F ( C), the optional water regulating valve must be selected as a factory installed option CAT 06 Page 3 of 48

24 Capacity Data Size 0 Table 5: Cooling Total Sensible Heat EWT( F) gpm cfm Capacity Capacity Watts Rejected Table 6: Heating EWT( F) gpm cfm Heating Capacity Watts Heat Absorpted Notes:. Cooling capacities shown are based on F DBT / 67 F WBT entering air coil conditions.. Cooling capacities shown are gross capacities. For net capacities, multiply blower BHP (Break Horse Power) required times,545 and subtract from total and sensible in tables. 3. Typical of all heating and cooling capacitiy tables. Apply the cooling correction factors found on page 30. Page 4 of 48 CAT 06

25 Capacity Data Size 00 Table 7: Cooling Total Sensible Heat EWT( F) gpm cfm Capacity Capacity Watts Rejected Table 8: Heating EWT( F) gpm cfm Heating Capacity Watts Heat Absorpted Notes:. Cooling capacities shown are based on F DBT / 67 F WBT entering air coil conditions.. Cooling capacities shown are gross capacities. For net capacities, multiply blower BHP (Break Horse Power) required times,545 and subtract from total and sensible in tables. 3. Typical of all heating and cooling capacitiy tables. Apply the cooling correction factors found on page For entering water temperatures below F ( C), the optional water regulating valve must be selected as a factory installed option CAT 06 Page 5 of 48

26 Capacity Data Size Table 9: Cooling Total Sensible Heat EWT( F) gpm cfm Capacity Capacity Watts Rejected Table 30: Heating EWT( F) gpm cfm Heating Capacity Watts Heat Absorpted Notes:. Cooling capacities shown are based on F DBT / 67 F WBT entering air coil conditions.. Cooling capacities shown are gross capacities. For net capacities, multiply blower BHP (Break Horse Power) required times,545 and subtract from total and sensible in tables. 3. Typical of all heating and cooling capacitiy tables. Apply the cooling correction factors found on page 30. Page 6 of 48 CAT 06

27 Capacity Data Size 300 Table 3: Cooling Total Sensible Heat EWT( F) gpm cfm Capacity Capacity Watts Rejected Table 3: Heating EWT( F) gpm cfm Heating Capacity Watts Heat Absorpted Notes:. Cooling capacities shown are based on F DBT / 67 F WBT entering air coil conditions.. Cooling capacities shown are gross capacities. For net capacities, multiply blower BHP (Break Horse Power) required times,545 and subtract from total and sensible in tables. 3. Typical of all heating and cooling capacitiy tables. Apply the cooling correction factors found on page For entering water temperatures below F ( C), the optional water regulating valve must be selected as a factory installed option. CAT 06 Page 7 of 48

28 Capacity Data Size 3 Table 33: Cooling Total Sensible Heat EWT( F) gpm cfm Capacity Capacity Watts Rejected Table 34: Heating EWT( F) gpm cfm Heating Capacity Watts Heat Absorpted Notes:. Cooling capacities shown are based on F DBT / 67 F WBT entering air coil conditions.. Cooling capacities shown are gross capacities. For net capacities, multiply blower BHP (Break Horse Power) required times,545 and subtract from total and sensible in tables. 3. Typical of all heating and cooling capacitiy tables. Apply the cooling correction factors found on page 30. Page 8 of 48 CAT 06

29 Capacity Data Size Table 35: Cooling Total Sensible Heat EWT( F) gpm cfm Capacity Capacity Watts Rejected Table 36: Heating EWT( F) gpm cfm Heating Capacity Watts Heat Absorpted Notes:. Cooling capacities shown are based on F DBT / 67 F WBT entering air coil conditions.. Cooling capacities shown are gross capacities. For net capacities, multiply blower BHP (Break Horse Power) required times,545 and subtract from total and sensible in tables. 3. Typical of all heating and cooling capacitiy tables. Apply the cooling correction factors found on page For entering water temperatures below F ( C), the optional water regulating valve must be selected as a factory installed option. CAT 06 Page 9 of 48

30 Page 30 of 48 CAT 06 Performance Data Condensing Water Flow Cooling Performance Correction Factors Unit Pressure Drop Total Size Cooling Cycle GPM Capacity Watts Input Heat Rejection Sensible Capacity EER Design T psi Ft. HD Cooling Correction Factors Table 37: Cooling Correction Multipliers

31 CAT 06 Page 3 of x 9.0 Blower Wheel Size x External Internal Total Unit Static CFM Static Static BHP RPM Motor Size Pressure Pressure Pressure H.P Performance Data External Internal Total Unit Static CFM Static Static BHP RPM Motor Size Pressure Pressure Pressure H.P x x Fan Motor Performance Sizes Table 38: RWA, RGA, RWC, RGC Fan Performance Blower Wheel Size Blower Wheel Size Blower Wheel Size

32 Page 3 of 48 CAT 06 Performance Data x x External Internal Total Unit Static CFM Static Static BHP RPM Motor Size Pressure Pressure Pressure H.P x x External Internal Total Unit Static CFM Static Static BHP RPM Motor Size Pressure Pressure Pressure H.P Sizes 084- Table 39: RWA, RGA, RWC, RGC Fan Performance Blower Wheel Size Blower Wheel Size Blower Wheel Size Blower Wheel Size

33 CAT 06 Page 33 of 48 Performance Data x x External Internal Total Unit Static CFM Static Static BHP RPM Motor Size Pressure Pressure Pressure H.P x x External Internal Total Unit Static CFM Static Static BHP RPM Motor Size Pressure Pressure Pressure H.P Sizes - Table : RWA, RGA, RWC, RGC Fan Performance Blower Wheel Size Blower Wheel Size Blower Wheel Size Blower Wheel Size

34 Performance Data Sizes 300- Table 4: RWA, RGA, RWC, RGC Fan Performance Unit Size x 8.0 Blower Wheel Size 3 8 x 8 Blower Wheel Size External Internal Total Motor Static CFM Static Static BHP RPM H.P. Pressure Pressure Pressure Unit Size x 8.0 Blower Wheel Size External Internal Total Motor Static CFM Static Static BHP RPM H.P. Pressure Pressure Pressure Page 34 of 48 CAT 06

35 Models RWA, RGA, RWC, RGC Table 4: Physical Data Physical Data Description Unit Size Fan Wheel - Diameter Width (Inches) Fan Quantity / n/a n/a n/a n/a 3/4 n/a Fan Motor Horse Power (HP) n/a -/ 3 n/a 5 n/a n/a n/a n/a Coil Face Area (Sq Ft) / 7-/ Coil Rows Compressor Type (Quantity) Scroll () Scroll () Scroll () Scroll () Scroll () Filter - Quantity-Size Water Connections O.D. Sweat 7/8 -/8-3/8-3/8-3/8 Condensate Connection Size (MPT) - (Quantity) -/4 () -/4 () -/4 () -/4 () -/4 () Operating Weight Shipping Weight Curb Weight + Unit Weight 4" " Description Unit Size Fan Wheel - Diameter Width (Inches) Fan Quantity n/a n/a n/a n/a -/ n/a n/a n/a n/a n/a n/a Fan Motor Horse Power (HP) 3 n/a n/a 5 7-/ n/a 0 n/a n/a Coil Face Area (Sq Ft) Coil Rows Compressor Type (Quantity) Scroll () Scroll () Scroll () Scroll () Scroll () Filter - Quantity-Size Water Connections O.D. Sweat -5/8-5/8-5/8-5/8-5/8 Condensate Connection Size (MPT) - (Quantity) -/4 () -/4 () -/4 () -/4 () -/4 () Operating Weight Shipping Weight Curb Weight + Unit Weight 4" " Description Unit Size Fan Wheel - Diameter Width (Inches) Fan Quantity 3 n/a n/a n/a n/a 5 n/a n/a Fan Motor Horse Power (HP) 7-/ n/a 0 5 n/a 0 n/a n/a n/a Coil Face Area (Sq Ft) Coil Rows Compressor Type (Quantity) Scroll () Scroll () Scroll () Scroll () Scroll (4) Filter - Quantity-Size () Water Connections O.D. Sweat -/8 -/8 -/8 -/8 -/8 Condensate Connection Size (MPT) - (Quantity) -/4 () -/4 () -/4 () -/4 () -/4 () Operating Weight Shipping Weight Curb Weight + Unit Weight 4" " CAT 06 Page 35 of 48

36 Dimensional Data Model RWA, RGA Size Figure : Downflow Discharge & Return Overall Unit Dimensions Note: Front of unit is determined by facing the control panel. 97"W (including intake hood) x 96"D x 6"H 8½"W (not including intake hood) x 96"D x 6"H Water Coil Connections (O.D. Sweat) Size 036 = 7/8" Size 048 = -/8" Size 0, 07, 084 = -3/8" Condensate Drain Connection (MPT) Size 036, 048, 0, 07, 084 = -/4" Refrigerant Charge RA (pounds) Size 036 = 6. Size 048 = 7.6 Size 0 = 8. Size 07 = 9.9 Size 084 = 0.0 Notes:. All dimensions are in inches.. A minimum of 4" to 36" should be allowed on all sides of unit for service clearance. 3. Clearance of 48" should be allowed for the control panel side of the unit. Page 36 of 48 CAT 06

37 Dimensional Data Model RWA, RGA Size Figure 3: Downflow Discharge & Return Overall Unit Dimensions Note: Front of unit is determined by facing the control panel. 97"W (including intake hood) x 96"D x 6"H 8½"W (not including intake hood) x 96"D x 6"H Water Coil Connections (O.D. Sweat) Size 096, 0,,, 0 = -5/8" Condensate Drain Connection (MPT) Size 096, 0,,, 0 = -/4" Refrigerant Charge RA (pounds) Size 096 = 8.9 Size 0 = 9.9 Size =. Size = 6.0 Size 0 = 3.4 Notes:. All dimensions are in inches.. A minimum of 4" to 36" should be allowed on all sides of unit for service clearance. 3. Clearance of 48" should be allowed for the control panel side of the unit. CAT 06 Page 37 of 48

38 Dimensional Data Model RWA, RGA Size 00- Figure 4: Downflow Discharge & Return Overall Unit Dimensions Note: Front of unit is determined by facing the control panel. 30-3/4"W (including intake hood) x 96"D x 83"H -9/6"W (not including intake hood) x 96"D x 83"H Water Coil Connections (O.D. Sweat) Size 00,, 300, 3, = -/8" Condensate Drain Connection (MPT) Size 00,, 300, 3, = -/4" Refrigerant Charge RA (pounds) Size 00 = 38.8 Size = 39.3 Size 300 = 45.4 Size 3 = 46.3 Size = 6.0 Notes:. All dimensions are in inches.. A minimum of 4" to 36" should be allowed on all sides of unit for service clearance. 3. Clearance of 48" should be allowed for the control panel side of the unit. Page 38 of 48 CAT 06

39 Dimensional Data Model RWC, RGC Size Figure 5: Horizontal Discharge & Return Overall Unit Dimensions Note: Front of unit is determined by facing the control panel. 07-3/4"W (including intake hood) x 96"D x 6"H 8-/"W (not including intake hood) x 96"D x 6"H Water Coil Connections (O.D. Sweat) Size 036 = 7/8" Size 048 = -/8" Size 0, 07, 084 = -3/8" Condensate Drain Connection (MPT) Size 036, 048, 0, 07, 084 = -/4" Refrigerant Charge RA (pounds) Size 036 = 6. Size 048 = 7.6 Size 0 = 8. Size 07 = 9.9 Size 084 = 0.0 Notes:. All dimensions are in inches.. A minimum of 4" to 36" should be allowed on all sides of unit for service clearance. 3. Clearance of 48" should be allowed for the control panel side of the unit. 4. Horizontal discharge and return units with Economizers may require a field-furnished and installed Barometric Damper. CAT 06 Page 39 of 48

40 Dimensional Data Model RWC, RGC Size Figure 6: Horizontal Discharge & Return Overall Unit Dimensions Note: Front of unit is determined by facing the control panel. 07-3/4"W (including intake hood) x 96"D x 6"H 8-/"W (not including intake hood) x 96"D x 6"H Water Coil Connections (O.D. Sweat) Size 096, 0,,, 0 = -5/8" Condensate Drain Connection (MPT) Size 096, 0,,, 0 = -/4" Refrigerant Charge RA (pounds) Size 096 = 8.9 Size 0 = 9.9 Size =. Size = 6.0 Size 0 = 3.4 Notes:. All dimensions are in inches.. A minimum of 4" to 36" should be allowed on all sides of unit for service clearance. 3. Clearance of 48" should be allowed for the control panel side of the unit. Page of 48 CAT 06

41 Dimensional Data Model RWC, RGC Size 00- Figure 7: Horizontal Discharge & Return Overall Unit Dimensions Note: Front of unit is determined by facing the control panel. 46-5/8"W (including intake hood) x 96"D x 83"H -/"W (not including intake hood) x 96"D x 83"H Water Coil Connections (O.D. Sweat) Size 00,, 300, 3, = -/8" Condensate Drain Connection (MPT) Size 00,, 300, 3, = -/4" Refrigerant Charge RA (pounds) Size 00 = 38.8 Size = 39.3 Size 300 = 45.4 Size 3 = 46.3 Size = 6.0 Notes:. All dimensions are in inches.. A minimum of 4" to 36" should be allowed on all sides of unit for service clearance. 3. Clearance of 48" should be allowed for the control panel side of the unit. CAT 06 Page 4 of 48

42 Dimensional Data 4" High Roof Curb Size Figure 8: Roof Curb Size " High Roof Curb Size Figure 9: Roof Curb Size Page 4 of 48 CAT 06

43 4" High Roof Curb Size 00- Figure 0: Roof Curb Size 00- Dimensional Data 4" High Roof Curb Size 00- Figure : Roof Curb Size 00- CAT 06 Page 43 of 48

44 Engineering Guide Specifications Model RWA, RGA Downflow Discharge and Return & Model, RWC, RGC Horizontal Discharge and Horizontal Return General Furnish and install McQuay Model RWA/RGA Series B water source heat pump per plans and specifications. Capacity and Energy Efficiency shall not be less than scheduled. Unit shall be provided with factory installed options listed below. Approvals Unit shall be design certified to conform to appropriate UL/ANSI Standards by ETL or other nationally recognized testing laboratory. Base and Cabinet The unit shall be double wall construction with heavy duty 0-gauge G-90 galvanized steel. Gasketed access doors shall be 0- gauge steel with " 4# density closed cell insulation and a 4-gauge galvanized steel liner. Standard outer panels will be insulated with " 4# density closed cell foam insulation with a 4-gauge galvanized steel interior liner. Service access doors shall also be mounted with stainless steel hinges and equipped with /4 turn cam operated adjustable compression type latches. The underside of the base panel shall be insulated with 3/8" closed cell foam insulation. Each roof section shall be sloped for proper drainage. All openings through the base pan of the unit shall have upturned flanges of at least /" in height. The design of the cabinet shall allow access to the compressor and electrical control panel without impairing unit operation. The compressors shall be mounted on a platform under the sloped condensers for easy serviceability. The condensers shall have a vinyl coated wire coil guard to protect the condensers as well as the compressors. Cabinet shall be designed for vertical supply and return air or horizontal supply and vertical return air. Horizontal return through a roof curb shall be acceptable. The unit shall be equipped with a factory installed weatherproof, outside-air intake hood with bird screen. Adjustable manual damper is included which allows preset outsideair volume up to 30% of the nominal rated CFM. IAQ (Indoor Air Quality) Condensate Drain Pan The condensate drain pan shall be double sloped to comply with ASHRAE Standard 6-089R and shall be fabricated from heavy gauge stainless steel. The bottom of the condensate drain pan shall be insulated with closed cell neoprene insulation. The drain pan shall be furnished with an MPT drain fitting positioned at the exterior of the cabinet. The weight of the coil and other components shall not compress the insulation thus reducing its insulation value. Paint Finish (Cabinet & Exterior) Constructed of hot dipped galvanized G-90 steel that is chemically treated with zinc phosphate, coated with 0. to 0.3 MIL polyurethane primer then finished with 0.7 to 0.8 MIL polyester top coating. Refrigerant System The refrigerant system(s) shall operate with R-A refrigerant and shall include the compressor, crankcase heater, copper-tube, aluminum finned condenser and evaporator coils. The refrigerant circuit shall include filter/drier, high pressure safety control, air proving switch and water proving switch (manual-reset), low pressure control/loss of charge protector (auto-reset), dual gauge connections for high and low pressure readings and thermal expansion valve with adjustable superheat. The condensing section of the unit shall be integral to the unit and shall be manufactured by the air conditioning unit manufacturer. Electrical Controls The unit shall be designed for electrical power entry through the curb. The starter/control panel shall include a programmable logic controller and a complete modular, integrated motor control system mounted on din rails. All safety and operating controls shall be factory mounted. The system shall also include all relays, fan contactors, compressor contactors, and power distribution. The 4-volt control circuit shall include a transformer and low voltage terminal strip for interface with a control system. Supply Fan Section All unit sizes shall be fitted with a DWDI forward curved fan assembly mounted on spring vibration isolation. The supply fan shall be on a slide out deck for removal from the cabinet to service or inspect. The shaft is belt driven with adjustable drive sheave connected to an open drip proof motor with sealed ball bearings. Adjustable V-belt drives shall be provided with a minimum rating of % of the motor nameplate brake horsepower when the adjustable pulley is at the minimum RPM. The bearings on both the blower shaft and motor are permanently lubricated. The supply fan shall be on a slide out deck for removal from the cabinet to service or inspect. Page 44 of 48 CAT 06

45 Engineering Guide Specifications Supply Fan Motor The motor shall be a high efficiency ODP Evaporator fan motor for HP and larger and is externally protected (manual reset). Air Filters and Rack The standard filter rack shall be capable of using either of " filters, 4" filters or " pre-filters and 4" after filters. Standard filters are " pleated. Optional Corrosion Protection Harsh Environment Protection shall include the following features, where applicable, to provide extra protection against corrosive atmospheric conditions: Coated refrigerant to air evaporator with Thermoguard, rated for 0,000 hr. Salt Spray Coated refrigerant to air hot gas reheat coil with Thermoguard, rated for 0,000 hr. Salt Spray Coated refrigerant to air sub cooling coil with Thermoguard, rated for 0,000 hr. Salt Spray All interior (un-insulated) cabinet panels coated with Thermoguard, rated for 0,000 hr. Salt Spray. All exterior surfaces of the cabinet coated with Thermoguard, rated for 0,000 hr. Salt Spray Evaporator Coil Evaporator coil shall be enhanced surface aluminum fins, formed on multiple rows of seamless rifled copper tubing, arranged in staggered tube configuration with galvanized steel header plates. These tubes are mechanically expanded, firmly bonding the tube to the shoulder of each fin. All compressors, accumulators, factory installed receivers, control device covers and refrigerant piping coated with Thermoguard, rated for 0,000 hr. Salt Spray. Optional Cupro-nickel Coaxial Water Coil The Coaxial Water Coil will be supplied with an enhanced surface cupro-nickel inner water tube with outer steel tube shell (tube-in-tube) Optional Hot Gas Reheat The unit shall be equipped with optional factory installed one row liquid sub cooling coil for all refrigeration circuits. Unit shall have an optional factory installed cycling hot gas reheat one row coil for both single or dual refrigeration circuits that include VARISPEED low ambient head pressure Control and water regulating valve. Reheat coils shall be coated with Thermoguard, a metallic impregnated polymeric structure designed specifically to withstand a wide range of chemical substances without affecting the heat transfer capabilities of the surface it is protecting. The coating shall provide corrosive environment protection (up to 0 ppm particulate concentration) against inorganic acids, Alkalines, Amines, Halogenated Hydrocarbons, Esters and Ketones. The coating shall meet or exceed 0,000 hr. salt spray test conditions per ASTM B7,,00 cycles per Kesternich test conditions and shall contain no volatile organic chemicals. Optional Hot Gas Bypass Unit shall be equipped with an optional factory installed cycling, hot gas reheat one-row coil on the lead refrigeration circuit that includes VARISPEED low ambient head pressure control and water regulating valve. Optional Electrical Components Unit shall be equipped with an optional manual reset fire-stat pre-set to open when return air temperature reaches 35 F, shall be factory mounted in the return air opening to the unit. Unit shall be equipped with an optional factory mounted and wired non-fused disconnect. Unit shall be equipped with an optional 5 Volt GFCI convenience outlet. Receptacle shall be factory installed and wired. It is furnished with a 5A circuit breaker and transformer for factory wiring. CAT 06 Page 45 of 48

46 Engineering Guide Specifications Optional Economizer The unit shall be equipped with an optional factory installed fully modulating enthalpy economizer with a weatherproof, full-size, outside-air intake hood and bird screen. The economizer shall consist of actuator operated outside and return air dampers. The dampers shall be constructed with 4-gauge galvanized steel frames and 6-gauge galvanized steel formed blades. The blades shall have parallel action. Each blade shall have vinyl edge seals and aluminum end seals for a maximum leakage rate of 6.5 cfm/sq. ft. Shafts shall be square, plated steel stubs in oil-impregnated bronze sleeves. Linkage shall be plated steel arms with stainless steel pivots and galvanized steel angles, located external to the damper blades. Stops shall be 6-gauge steel angles. A direct connected actuator shall be connected to extended shafts. Plastic gears are not acceptable. A gravity relief damper and discharge hood are also included. The unit shall be equipped with an optional factory installed fully modulating enthalpy economizer with a weatherproof, full-size, outside-air intake hood and bird screen. The economizer shall consist of 0-0VDC actuator (controls by others) operated outside and return air dampers. The dampers shall be constructed with 4-gauge galvanized steel frame and 6-gauge galvanized steel formed blades. The blades shall have parallel action. Each blade shall have vinyl edge seals and aluminum end seals for a maximum leakage rate of 6.5 cfm/sq. ft. Shafts shall be square, plated steel stubs in oil-impregnated bronze sleeves. Linkage shall be plated steel arms with stainless steel pivots and galvanized steel angles, located external to the damper blades. Stops shall be 6-gauge steel angles. A direct connected actuator shall be connected to extended shafts. Plastic gears are not acceptable. A gravity relief damper and discharge hood are also included. Page 46 of 48 CAT 06

47 CAT 06 Page 47 of 48

48 McQuay Water Source Heat Pumps Quality Products, Flexible Configurations Large Vertical Units 6 to 5 Ton Stacking Units 3/4 to 3 Ton Large Horizontal Units 6 to 0 Ton Console Units 3/4 to / Ton Enfinity Vertical & Horizontal Units / to 6 Ton Rooftop Units 3 to 35 Ton Water to Water Source Heat Pump Units 3 to 35 Ton Warranty All McQuay equipment is sold pursuant to its standard terms and conditions of sale, including Limited Product Warranty. Consult your local McQuay Representative for warranty details. Refer to Form Y. To find your local McQuay Representative, go to This document contains the most current product information as of this printing. For the most up-to-date product information, please go to Products Manufactured in an ISO Certified Facility. 0 McQuay International (0) Catalog 06 (7/)