FAN TERMINAL UNITS Constant Volume (Series Flow), Standard Design

Transcription

1 FAN TERAL UNITS Constant Volume (Series Flow), Standard Design Models ACF w/o Coil ACW w/hot Water Coil ACE w/electric Coil The Carnes constant volume fan terminal unit provides constant air volume to the space while retaining the advantages of a variable air volume system. The primary air control assembly operates in the same manner as a standard throttling control valve when cooling loads are high. As cooling loads diminish the integral blower(s) induces warm ceiling plenum air to maintain constant air volume. Features Include: Air flow capacities to 4130 CFM. Durable 22 gauge galvanized steel casing construction. Bottom access panel for internal components. Flange or slip and drive discharge connections. Forward curved centrifugal type fan assemblies with thermally protected, Permanent Split Capacitor or ECM type, fractional horsepower motors. Multiple voltages available. Adjustable SCR fan speed control. /motor assemblies are isolated from the casing using rubber isolators to minimize vibration transmission. Low leakage primary air damper design. Secondary air filter rack. Performance data based on tests conducted in accordance with AHRI Standard Air flow switch. All units are equipped with pressure independent pneumatic or electronic controls. Field adjustable P/E switch with pneumatic controls. Tri-Averaging type velocity sensor and calibration chart for measuring air flow through the primary air damper. Insulation is 1 thick, 1-1/2 lb. dual density fiberglass with surface treated to prevent air erosion, UL listed and meets NFPA 90A requirements. Damper controls and fan controls are located in one enclosure. AHRI listed. Optional ETL listing. Optional secondary air sound baffle. Sound baffle is factory attached to secondary air inlet. Optional one to four row hot water coils (Model ACW). Coil is factory attached to the unit discharge. Optional one or two stage electric reheat coils (Model ACE). Coil is factory attached to unit discharge. Optional secondary air filters, Class I (re-usable) or Class II (throw away). Optional non-fused or fused fan disconnect switch. Optional foil coated insulation. Optional fiber-free liner. Optional dual wall. Available Modules: Basic control unit Model ACF. Basic control unit with hot water coil Model ACW. Basic control unit with electric coil Model ACE. IAQ IAQ Insulation Available B-122

2 FAN CURVES CFM vs EXTERNAL STATIC PRESSURE FAN SIZE B AC 06 1/6 HP Motor PSC FAN SIZE C AC 07 1/6 HP Motor PSC NOTES: 1. External static pressure (ESP) consists of down stream duct work, coils, flex duct, etc. 2. Pressure drop due to heating coils are treated as external static pressure 3. For proper operation, the downstream ESP must be at least B-123

3 FAN CURVES CFM vs EXTERNAL STATIC PRESSURE FAN SIZE D AC 08 1/4 HP Motor PSC FAN SIZE E AC 10 1/2 HP Motor PSC NOTES: 1. External static pressure (ESP) consists of down stream duct work, coils, flex duct, etc. 2. Pressure drop due to heating coils are treated as external static pressure 3. For proper operation, the downstream ESP must be at least 0.20 B-124

4 FAN CURVES CFM vs EXTERNAL STATIC PRESSURE FAN SIZE F AC 12 3/4 HP Motor PSC FAN SIZE G AC 14/16 1 HP Motor PSC NOTES: 1. External static pressure (ESP) consists of down stream duct work, coils, flex duct, etc. 2. Pressure drop due to heating coils are treated as external static pressure 3. For proper operation, the downstream ESP must be at least B-125

5 FAN CURVES CFM vs EXTERNAL STATIC PRESSURE FAN SIZE J AC 16 (2) 3/4 HP Motor PSC NOTES: 1. External static pressure (ESP) consists of down stream duct work, coils, flex duct, etc. 2. Pressure drop due to heating coils are treated as external static pressure 3. For proper operation, the downstream ESP must be at least 0.20 B-126

6 Model ACFJ/ACEJ Power Terminal Units Air Min. Discharge Sound Max. NC Radiated Sound Max. NC Unit Size Flow CFM P s in Only Only (B) (C) (D) (E) (F) / (G) (J) NOTES: 1. DPs static pressure difference from inlet to discharge. 2. The lowest value of DPs is the minimum pressure required to deliver CFM shown with primary damper in wide open position. 3. DPs does not include hot water or electric coils. 4. ( ) indicates NC levels less than 10. NC Levels are derived from tests conducted in accordance with AHRI Standard and are calculated in accordance with AHRI Standard as application data based on the following: Discharge NC levels are based on Radiated NC levels are based on a) 5 foot rectangular duct lined with 1 fiberglass insulation. a) Plenum/ceiling effect - 5/8 mineral fiber tile, 35 lb/ ft3 b) 5 foot lined flex duct (8 diameter). - 3 foot plenum c) Flow division. b) Environmental adjustment factor. d) Space effect factor (2400ft 3 ) at 5 feet from outlet. e) End reflection. f) Environmental adjustment factor. NC is not part of the AHRI 880 Certified Program. B-131

7 Sound Data (Sound Power by Octave Band) Model ACFJ/ACEJ Power Terminal Units Discharge Sound Power Air Primary Air Primary Air Primary Air Primary Air () Flow Only Octave Band P s (0.5 ) Octave Band P s (1.0 ) Octave Band P s (1.5 ) Octave Band P s (3.0 ) Octave Band Size CFM (B) (C) (D) (E) (F) / (G) (J) NOTES: 1. Based on tests conducted in accordance with AHRI Standard Ps static pressure difference from inlet to discharge. 3. Ps is the minimum pressure required to deliver CFM shown with primary damper in wide open position. 4. Dash ( ) indicates db level less than 10. A Participating Member in the AHRI 880 Certification Program B-132

8 Sound Data (Sound Power by Octave Band) Model ACFJ/ACEJ Power Terminal Units Radiated Sound Power Air Primary Air Primary Air Primary Air Primary Air () Flow Only Octave Band P s (0.5 ) Octave Band P s (1.0 ) Octave Band P s (1.5 ) Octave Band P s (3.0 ) Octave Band Size CFM (B) (C) (D) (E) (F) / (G) (J) NOTES: 1. Based on tests conducted in accordance with AHRI Standard Ps static pressure difference from inlet to discharge. 3. Ps is the minimum pressure required to deliver CFM shown with primary damper in wide open position. 4. Dash ( ) indicates db level less than 10. A Participating Member in the AHRI 880 Certification Program B-133

9 MODEL NUMBERING Constant Volume (Series Flow), Standard Design Design OPTIONS: (Must be ordered in position shown below, default Model Number Series Size Size Voltage Controls Insul is standard and applies if no entry is made) A C E J 0 6 B 1 C E 5 C A - Air Terminal C - Constant Volume E - Electric Reheat INLET FAN 05 PSC Only B 06 C 07 D 08 E 10 F 12 G 14 H 16 J PSC Only ECM Only CONTROL TYPE ET - Analog Electronic Velocity Controller with Integral Damper Actuator DD - SimplyVAV, DDC by Carnes for Staged Heat DM - SimplyVAV, DDC by Carnes for SCR Heat DO - DDC Provided by Others, Mounted and Wired by Carnes, with Carnes Sensor, with 3/8 Damper Shaft, with Enclosure DE - No Damper Controls. Enclosure with Carnes Sensor and Bare 3/8 Damper Shaft NOTE: Hand of controls is determined by facing the averaging flow sensor (inlet of the unit) with the supply air hitting the back of your head. Electronic Thermostat Model Number Design Series A X W C A A - Air Terminal X - Shipped Separately 1-120V, 1 Ph. PSC (No Code G ) 2-277V, 1 Ph. PSC 3-120V, 1 Ph. ECM W - Wall Thermostat A Carnes Electronic Thermostat must be ordered with the ET Electronic Control Option. Direct Digital Control (DD/DC/DM) Model Number Design Series A X B C G VOLTAGE A - Electronic with Max./ Min. Air Flow Set Points 4-277V, 1 Ph. ECM 5-240V, 1 Ph. ECM 8-208V, 1 Ph. PSC 9-240V, 1 Ph. PSC ACTUATOR VENDOR C - Carnes OEM D - DDC Actuator (DO Option Only) N - Not Applicable (DE Option Only) A - ETL Listed D - Disconnect Switch 120/277V (Non-Fused) V - Disconnect Switch 120V (Fused) M - ETL Listed w/disconnect 120/277V (Non-Fused) N - ETL Listed w/disconnect 120V (Fused) P - Disconnect Switch 277V (Fused) B - ETL Listed w/disconnect 277V (Fused) F - Filter Rack w/class I Filter (Re-Usable) G - Filter Rack w/class II Filter (Throw Away) H - Mounted Secondary Baffle K - Mounted Secondary Baffle w/class I Filter (Re-Usable) L - Mounted Secondary Baffle w/class II Filter (Throw Away) Y - 1 Glass Fiber (Standard) B - 1 Foil Coated Insulation C - 1/2 Closed Cell Liner D - Double Wall Solid Liner P - Double Wall Perforated Liner CONTROLS AND DAMPER ARRANGEMENT *1 - Normally Open - Right Hand Controls (Electronic/DO, DE, ET) (All Pneumatic Control Types for Reverse Acting Thermostat) *2 - Normally Open - Left Hand Controls (Electronic/DO, DE, ET) (All Pneumatic Control Types for Reverse Acting Thermostat) * Electronic and DDC Units DO NOT fail open. 1 or 2 is used for Right or Left Hand Only. Electronic Units are shipped with the Damper in the Open Position. A - Air Terminal G - Digital T Stat Setup Tool H - Room Temp Sensor X - Accessory J - Room Temp Sensor with Set Point Adjust B - Air Terminal Controls B-155

10 DIMENSIONAL DATA Constant Volume (Series Flow), Standard Design - PSC FAN SIZES B - G PSC Filter Rack Filter Clip J Secondary Air Flow Insulated Collar PRIMARY AIR FLOW 6 (152) Controls Enclosure 6-1/2 (165) RIGHT HAND PRIMARY AIR UNIT SHOWN. LEFT HAND AVAILABLE. 27-1/2 (699) 10-1/2 (267) C E G A L PRIMARY AIR FLOW D B 12-1/8 (308) K H Access Opening Size Size B 05 B 06 C 07 D 08 Primary CFM (L/s) 350 (165) 500 (236) 700 (330) 1000 (472) Sec. E.S.P. (L/s) 550 (260) 550 (260) 750 (354) 1275 (602) DIMENSIONS LISTED IN INCHES (Millimeters) H.P. 1/6 1/6 1/6 1/4 E (708) (840) 1/2 F (1086) (1147) 3/4 G (1463) 3100 G (1463) (1982) 1 Note: is designed for slip and drive duct connection. A B C D 4-7/8 (124) 14 (356) 16 (406) 24 (610) 15 (381) 17-1/2 (445) 65 (1651) 67 (1702) 75 (1905) 5-7/8 (149) 6-7/8 (175) 7-7/8 (200) E G H J K L 61-5/8 (1565) 30 (762) 35-3/4 (908) 9-7/8 (251) 11-7/8 54-3/4 (1391) 54-1/2 41-3/4 (1048) (302) (1384) 13-7/8 (352) 62-5/ / /8 (1591) (1164) (403) 19-5/8 (498) 20 (508) 22 (559) 21-3/4 (552) 27-3/4 (705) 13-3/4 (349) 15 (381) 8 (203) 15-3/4 (400) 7-5/8 (194) 22-3/4 (578) 17-1/2 (445) 9-7/8 19-3/4 (251) (502) 17-3/4 (451) 20 (508) 10-7/8 (276) B-156

11 DIMENSIONAL DATA Constant Volume (Series Flow), Standard Design - PSC FAN SIZE J PSC Filter Rack Filter Clip J Secondary Air Flow Insulated Collar PRIMARY AIR FLOW S & Drive Connections 6-1/2 (165) RIGHT HAND PRIMARY AIR UNIT SHOWN. LEFT HAND AVAILABLE. 6 (267) 27-1/2 (699) Controls Enclosure 10-1/2 (267) C E 18 (457) G A L PRIMARY AIR FLOW D B 12-1/8 (308) K H Access Opening Size Size J 16 Primary CFM (L/s) 4200 (1982) DIMENSIONS LISTED IN INCHES (Millimeters) Sec. E.S.P. (L/s) H.P. A B C D E G H J K L / /4 65-3/4 15-7/8 53-1/ /4 27-7/8 18-1/4 4 (1949) (2) (1067) (463) (1670) (403) (1353) (1422) (451) (708) (463) (102) Note: is designed for slip and drive duct connection. B-157