DRAFT. Technical Data OPA Ducted Three Phase Packaged Air Conditioners. 47 kw 96 kw

Transcription

1 DRAFT Ducted Three Phase Packaged Air Conditioners Technical Data 96 Twin System Enables Staging Extra Long Life Epoxy Coated Outdoor Coil OPTION TZT-71 Controller & Digital Scroll Compressor for close temperature control Nominal Cooling Capacity 47 kw 96 kw OCTOBER 211

2 , 55, 595, 7,,, 96 - DUCTED PACKAGED ROOF TOP CONDITIONER General This OPA Series is a range of reverse cycle (heat pump) packaged roof top air conditioner designed and developed to comply with AS/NZS 33 specified conditions. The system has been tested and proven for cooling operation in outdoor temperatures up to 5 C. Applications These units have been specifically developed for air conditioning of commercial premises, e.g. banks, supermarkets, shopping malls, food outlets, auditoriums and restaurants. Air Flow Selection If the air returning to the indoor coil is regularly expected to be above 5%RH, then the coil face velocity should be limited to be 2.5 m/s or less (refer Air Flow graph; 2.5 m/s is clearly marked). High humidity levels can occur in tropical or subtropical conditions, and/or when heavily moisture laden fresh air is introduced. Consideration must always be given to selecting an air flow and face velocity that avoids water carry-over problems. Applications using full or high proportions of fresh air should be referred to your nearest temperzone sales office to establish the correct selection of units. Features Refrigerant R41A. Each system uses refrigerant R41A which is deemed to have zero ozone depletion potential. Economy. Each OPA unit has two independent refrigeration circuits to provide the flexibility and economy of two stage operation, i.e. utilising one or two circuits as conditions vary, plus the advantage of staggered starting. An economiser option is available to lower operating costs further during the cooling cycle. Efficient. Heat exchange coils incorporate inner grooved (rifled) tube for better heat transfer. The indoor air coil is interlaced for efficient part load performance. Performance. An adjustable pulley on the indoor air fan motor enables fine tuning to match the supply air requirements. The system includes a temperature sensing head pressure control which enables the system to compensate for outdoor ambient temperatures below 2 C on cooling cycle, and above C on heating cycle. / only: Electronic expansion valves (EEV) improve performance across a wide range of operating conditions. Quiet. The unit's generous insulation ensures a quiet unit. Durable. The cabinet and drain tray are constructed from high grade galvanised steel - polyester powder coated (colour Grey) for increased durability. External fasteners are stainless steel. Heat exchange coils comprise aluminium plate fins on mechanically expanded rifled copper tube. The outdoor coil fins are epoxy coated for extra protection in corrosive environments, eg salt laden sea air. Coil protection guards protect against hail damage. Fan motor bearings are sealed for life so as not to incurr regular maintenance. Insulation. Closed cell foam insulation has been used in the indoor air section to ensure no particles are introduced into the air stream. The insulation is foil faced and meets fire test standards AS 3.3 (1989) and BS 476 parts 6 & 7. Self Diagnostics. Each system includes a controller (OUC*) that has a display of LEDs to indicate faults and running conditions. A non-specific fault indicator is included for interface to external systems. * UC on / CONFIGURATIONS Two standard versions are available for each model: 1. Horizontal supply/return air with box mounting channel (OPA RKTBH), 2. Downward supply/return air with box mounting channel (OPA RKTBU). Optional Equipment 1. Filters (rated EU4). 2. Economiser (factory fitted) - includes dampers, weatherhood. 3. Adjustable fresh air damper and weatherhood. 4. TZT-71 thermostat (or TZT- on /). 5. Electronic control systems - available by special arrangement. 6. Digital compressor replaces one of the two compressors for close control applications. SAFETY FEATURES 1. HP and loss of refrigerant protection. 2. Anti-rapid cycle timer and internal overload for compressor protection. 3. Circuit breaker control circuits. 4. Time-and-temperature controlled electronic de-ice prevents icing up of the outdoor coil during heating cycle. 5. Frost protection on cooling cycle. 6. Sensor fault indication. 7. Crankcase heater prevents liquid refrigerant condensing in the compressors during the 'off' cycle. 8. Compressor minimum run time to ensure oil return. 9. Phase rotation protection device V control circuit Compressor Each high efficiency scroll type compressor is hermetically sealed and supported on rubber mounts to minimise vibration. Refrigeration SYSTEM The OPA units are factory charged with HFC-41A (R41A) refrigerant. / only: Electronic expansion valves (EEVs) control the flow of refrigerant. Wiring The electrical supply required (including voltage fluctuation limits) is: 3 phase V a.c. 5 Hz with neutral and earth. The units control panel is fully wired ready to accept the main power supply. ECONOMISER OPTION If the outdoor air heat content or temperature is below that of the return air, the fresh air damper opens and the return air damper closes to provide the first stage of cooling. The dampers reverse and the compressor(s) will then operate to provide more cooling if required. A way of exhausting air from the space will be required when operating on % fresh air. The manufacturer operates a quality management system that conforms to AS/NZS ISO 91:28. Also available: OPA 2 3 models (23 38 kw)

3 PERFORMANCE DATA OPA 55 OPA INDOOR FAN SPEED l/s INDOOR COIL E.A.T. D.B. C W.B. C Cooling Capacity (kw) Total = Total Capacity (kw) Sens. = Sensible Capacity (kw) E.A.T. = Entering Air Temperature = Nominal Capacity (kw) Note: Capacities are gross and do not include allowance for fan motor heat loss. For fan motor heat loss refer to Air Handling graphs. COIL ENTERING TEMPERATURE C D.B Total Sens. Total Sens. Total Sens. Total Sens. Total Sens. Total Sens Indoor Air Flow Correction nominal conditions Indoor Air Flow (%) Total Capacity Sensible Capacity -2% % Rated %

4 PERFORMANCE DATA OPA 595 OPA INDOOR ENTERING TEMP. C D.B heating capacity (kw) G = Gross Heating Capacity kw, based on nominal air flow. N = Net Heating Capacity kw allowing for average defrost. = Nominal Capacity (kw) outdoor coil ENTERING TEMPERATURE (e.a.t.) c d.b G n G n G n G n G n G n G n G n

5 PERFORMANCE DATA HANDLING Note: Airflows are for a dry coil. Reduce airflow by 5% in high moisture removal conditions. In a free blow or low resistance application, beware of exceeding indoor fan motor's full load amp limit (refer back page). As filters are optional, the fan air flows given are for units installed without filters. OPA RPM 65 RPM 73 RPM 3 kw MOTOR LIMIT FLOW (l/s) 2. m/s Face Velocity RPM 73 RPM 3 kw MOTOR LIMIT 9 RPM FLOW (l/s) 2.3 m/s Face Velocity OPA 5.5 kw MOTOR LIMIT 4 RPM 3 RPM 7 RPM FLOW (l/s) 2.5 m/s Face Velocity 5.5 kw MOTOR LIMIT 4 RPM 3 RPM 7 RPM FLOW (l/s) 2.5 m/s Face Velocity 4 75 RPM 3 6 RPM 6 RPM kw MOTOR LIMIT FLOW (l/s) 2.5 m/s Face Velocity RPM RPM RPM 7.5 kw MOTOR LIMIT FLOW (l/s) 2.5 m/s Face Velocity

6 PERFORMANCE DATA Model : OPA 55 OPA 899 Std Motor Size kw 5.5 (x2) 5.5 (x2) Max. D.O.L. Motor kw 7.5 (x2) 7.5 (x2) Max. Fan Speed RPM 95 Std Pulley Range RPM Factory Setting RPM Optional Filters - Pressure Drop Based on Koch Multi-Pleat HC filter. Max. final pressure drop Pa. PRESSURE DROP (Pa) 75 5 INITIAL (Clean Filter) FILTER FACE VELOCITY (m/s) SOUND LEVELS RADIATED OPA 55 OPA FAN SPEED SWL db(a) 1 Sound Power Levels (SWL) Measured in decibels re 1 picowatt. 83 OCTAVE BAND FREQUENCY Hz 1 k SOUND POWER LEVELS (SWL) db k k FAN SPEED 3 m db(a) 1 Sound Pressure Levels (SPL) Measured in decibels re 2 µpa. OCTAVE BAND FREQUENCY Hz 1 k SOUND PRESSURE LEVELS (SPL) db 2 k 4 k OPA 55 OPA SUPPLY OUTLET INDOOR FAN SPEED OPA RPM OPA RPM 75 RPM OPA RPM 75 RPM RPM RPM RPM SWL db(a) Sound Power Levels (SWL) Test Conditions: BS 8 PT2 19. Installation Type A (free inlet and outlet). Direct method of measurement (reverberant room). Measured in decibels re 1 picowatt OCTAVE BAND FREQUENCY Hz 1 k SOUND POWER LEVELS (SWL) db k k

7 DIMENSIONS (mm) Fig. 1 Horizontal Supply & Return Air OPA SRKTBH MIN. CLEARANCE B W PANEL Z MIN. CLEARANCE FLOW V MIN. CLEARANCE Y 3 MIN. CLEARANCE A U X OPTIONAL RETURN 6 SUPPLY Not to Scale A B C D E F G H J K L M N OPA Note: The, 96 models have four outdoor air fans. MIN. CLEARANCE FOR FILTER FILTER F E J K OPA 55 OPTIONAL POINT Loads (kg) U V W X Y Z PROJECTION C D H L L MOUNTING CENTRES DRAIN 1" BSP FEMALE G M MOUNTING CENTRES N MIN. BENEATH Fig. 2 Downward Supply Air & Return Air OPA SRKTBU FLOW R S T R S T U V W X Y Z U OPA OPA V W FLOW Z Y X Note: The, 96 models have four outdoor air fans. Refer to Fig.1 for overall dimensions. 6 SUPPLY & RETURN NOTE The manufacturer reserves the right to make changes in specifications at any time without notice or obligation. Certified data is available on request.

8 DIMENSIONS (mm) Fig. 3 Horizontal Supply & Return Air RKTB1, OPA RKTB1 MIN. CLEARANCE 224 U PANEL Z MIN. CLEARANCE FLOW V Y FLOW MIN. CLEARANCE MIN. CLEARANCE PANEL W X OPTIONAL 6 RETURN SUPPLY MIN. CLEARANCE FOR FILTER 19 FILTER 56 6 Not to Scale PROJECTION POINT Loads (kg) U V W X Y Z Opposite Hand version also available, ie RKTB1 or OPA RKTB1 Note : A 2 m clearance is required above the exhaust air fans OPTIONAL MOUNTING CENTRES 299 O/A DRAIN 1" BSP FEMALE 6 21 MOUNTING CENTRES 4 27 Fig. 4 Downward Supply Air & Return Air OPA SRKTB NOTE The manufacturer reserves the right to make changes in specifications at any time without notice or obligation. Certified data is available on request. Opposite Hand version also available, ie RKTB32 or OPA RKTB SUPPLY & RETURN

9 Fig. 5 Economiser Option OPA 55 P Q MOTORISED FRESH DAMPER P Dimensions (mm) OPA INDOOR SECTION ECONOMISER Q FRESH INTAKE mm MINIMUM SUPPLY RETURN ROOF MOTORISED RETURN DAMPER Fig. 6 Fresh Air Damper Option OPA 55 R S ADJUSTABLE FRESH DAMPER R OPA FRESH 43 FRESH INTAKE S Nomenclature O P A R K T B G e.g. Series Size Type D H O - Outdoor P - Packaged A - Air Cooled Divide by 1 to get approx. nominal Capacity in kilowatts R - Reverse cycle K - Refrigerant R41A T - Three phase power supply B - Twin compressor system (twin circuit) G - Digital compressor system (single) D - TZT-71 Room Temp. Controller H - Horizontal discharge supply air fan U - Downward discharge supply air fan O P A 7 R K T B 1 e.g. Series Size Type Configuration O - Outdoor P - Packaged A - Air Cooled Divide by 1 to get approx. nominal Capacity in kilowatts R - Reverse cycle K - Refrigerant R41A T - Three phase power supply B - Twin compressor system G - Digital compressor system (one of two) 1 - Std Horiz. S/A, Horiz. R/A 1 - Opp Hd Bott. S/A, Vert. R/A 23 - Std Bott. S/A, Bott. R/A 32 - Opp Bott. S/A, Bott. R/A

10 SPECIFICATIONS Model opa 465 OPA 55 OPA Nominal Cooling Capacity * 1 kw Net Cooling Capacity kw Heating Capacity * 2 kw E.E.R. (Cooling) Air Flow * 3 l/s Power Source * 4 3 p h a s e V a. c. 5 H z Indoor Fan Full Load Amps A/ph Running Amps (Total System) A/ph. 32 / 27 / / 3 / / 36 / 37 5 / 4 / 4 51 / 46 / / 59 / 59 Recom'd External Protection A/ph Finish G r e y p o l y e s t e r p o w d e r c o a t Net Weight kg Shipping Weight kg Notes: * 1 Nominal Cooling Capacity at AS/NZS 33 conditions: Indoor Entering Air Temperature 27 C D.B., 19 C W.B.; Outdoor Entering Air Temperature 35 C D.B. Net Cooling Capacity at AS/NZS 33 includes an allowance for indoor fan motor heat loss. * 2 Heating Capacity at AS/NZS 33 conditions: Indoor Entering Air Temperature 21 C D.B.; Outdoor Entering Air Temperature 7 C D.B., 6 C W.B. * 3 Supply air flow at Nominal Cooling Capacity conditions stated above. * 4 Power source includes voltage limits. NOTE The manufacturer reserves the right to make changes in specifications at any time without notice or obligation. Certified data is available on request. Available from 1/11 Pamphlet No. 37 temperzone limited 211 temperzone limited Head Office, Auckland : 38 Tidal Rd, Mangere, N.Z. Private Bag 9333, Otahuhu, NEW ZEALAND. sales@temperzone.co.nz Website: temperzone australia pty ltd Head Office, Sydney : 14 Carnagie Place PO Box 48, Delivery Centre, Blacktown, NSW 2148, AUSTRALIA. sales@temperzone.com.au AUCKLAND SYDNEY Ph Ph. (2) Fax Fax (2) WELLINGTON ADELAIDE Ph Ph. (8) Fax Fax (8) CHRISTCHURCH SINGAPORE Ph Ph. SNG Fax Fax SNG MELBOURNE Ph. (3) Fax (3) BRISBANE Ph. (7) Fax (7) NEWCASTLE Ph. (2) Fax (2) PERTH Ph. (8) Fax (8) TOWNSVILLE Ph. (7) Fax (7) HOBART Ph. (3) Fax (3) Manx Press