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INSTALLATION INSTRUCTIONS FOR
LIGHT COMMERCIAL SELF-CONTAINED
PACKAGED HEATING & COOLING UNIT
3 TON - 6 TON CPC/CPH SERIES
RECOGNIZE THIS SYMBOL AS A SAFETY PRECAUTION.
ATTENTION INSTALLING PERSONNEL
Prior to installation, thoroughly familiarize yourself with this Installation Manual. Observe all safety warnings.
During installation or repair, caution is to be observed.
It is your responsibility to install the product safely and to educate the customer on its safe use.
All information contained
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REPLACEMENT PARTS Index Replacement Parts ........................................................ 2 ORDERING PARTS Safety Instructions ........................................................ 2 When reporting shortages or damages, or ordering repair parts, give the complete unit model and serial numbers General Information ...................................................... 3 as stamped on the unit’s nameplate. Unit Location ................................................................. 4
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EPA REGULATIONS WARNING IMPORTANT: THE UNITED STATES ENVIRONMENTAL PROTECTION AGENCY (EPA) HAS ISSUED VARIOUS REGULATIONS REGARDING THIS UNIT MUST NOT BE USED AS A “CONSTRUCTION HEATER” DURING THE FINISHING PHASES OF CONSTRUCTION ON A NEW THE INTRODUCTION AND DISPOSAL OF REFRIGERANTS IN THIS UNIT. STRUCTURE. THIS TYPE OF USE MAY RESULT IN PREMATURE FAILURE FAILURE TO FOLLOW THESE REGULATIONS MAY HARM THE OF THE UNIT DUE TO EXTREMELY LOW RETURN AIR TEMPERATURES ENVIRONMENT AND CAN LEAD TO THE
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a. Original Bill of Lading, certified copy, or indemnity such compounds include swimming pool chemicals bond. and chlorine bleaches, paint stripper, adhesives, paints, varnishes, sealers, waxes (which are not yet b. Original paid freight bill or indemnity in lieu thereof. dried) and solvents used during construction and c. Original invoice or certified copy thereof, showing remodeling. Various commercial and industrial trade and other discounts or reductions. processes may also be sources of chl
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ROOF CURB INSTALLATIONS ONLY: CLEARANCES Curb installations must comply with local codes and should be done in accordance with the established guidelines of the National Roofing Contractors Association. Proper unit installation requires that the roof curb be firmly and permanently attached to the roof structure. Check for adequate fastening method prior to setting the unit on the 48” curb. 48” Full perimeter roof curbs are available from the factory and are shipped unassembled. Field assembly,
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ROOF CURB POST-INSTALLATION RIGGING DETAILS CHECKS WARNING After installation, check the top of the curb, duct connection O PREVENT PROPERTY DAMAGE, THE UNIT SHOULD REMAIN IN AN UPRIGHT frame and duct flanges to make sure gasket has been ap- T POSITION DURING ALL RIGGING AND MOVING OPERATIONS. TO FACILITATE plied properly. Gasket should be firmly applied to the top of LIFTING AND MOVING WHEN A CRANE IS USED, PLACE THE UNIT IN AN the curb perimeter, duct flanges and any exposed duct con- ADEQUAT
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Lower unit carefully onto roof mounting curb. While rigging unit, center of gravity will cause condenser end to be lower than supply air end. To assist in determining rigging requirements, unit weights are shown as follows: A C RETURN Y CONDENSER COIL EVAPORATOR COIL CG SUPPLY COMPRESSOR B D X CORNER & CENTER OF GRAVITY LOCATIONS X Y Shipping Weight Operating Weight Corner Weights ( lbs ) Model (in) (in) (lbs) (lbs) AB C D CPC036* 35 27 525 500 115 150 105 130 CPC048* 35 27 560 535 125 160
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All line voltage connections must be made through weather- CAUTION proof fittings. All exterior power supply and ground wiring must be in approved weatherproof conduit. TO PREVENT SEVERE DAMAGE TO THE BOTTOM OF THE UNIT, DO NOT FORK LIFT UNIT AFTER WOOD STRUTS HAVE BEEN REMOVED. The main power supply wiring to the unit and low voltage wiring to accessory controls must be done in accordance with Bring condenser end of unit into alignment with the curb. With these instructions, the latest editi
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MAIN POWER LOW VOLTAGE BLOCK RETURN 3.5 DIA. POWER THRU THE CURB LOW VOLTAGE 4 1/2” ENTRANCE POWER THRU THE CURB CONTROL BOX 47 1/2” 7 1/2” WARNING ELECTRICAL ENTRANCE AND THRU CURB FAILURE OF UNIT DUE TO OPERATION ON IMPROPER LINE VOLTAGE OR WITH EXCESSIVE PHASE UNBALANCE CONSTITUTES PRODUCT LOW VOLTAGE CONTROL WIRING ABUSE AND WILL VOID YOUR WARRANTY AND MAY CAUSE SEVERE 1. A 24V thermostat must be installed for unit operation. DAMAGE TO THE UNIT ELECTRICAL COMPONENTS. It may be purchased
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CIRCULATING AIR AND FILTERS STARTUP, ADJUSTMENTS, AND CHECKS DUCTWORK WARNING The supply duct from the unit through a wall may be installed without clearance. However, minimum unit clearances must HIGH VOLTAGE! be maintained (see “Clearances” section). The supply duct TO AVOID PERSONAL INJURY OR DEATH DUE TO ELECTRICAL SHOCK, BOND THE FRAME OF THIS UNIT TO should be provided with an access panel large enough to THE BUILDING ELECTRICAL GROUND BY USE OF THE inspect the air chamber downstream
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TOOLS REQUIRED System Voltage - That nominal voltage value assigned to a circuit or system for the purpose of designating its voltage Refrigeration gauge and manifold class. Voltmeter Clamp-on ammeter Nameplate Voltage - That voltage assigned to a piece of equipment for the purpose of designating its voltage class Ohmmeter and for the purpose of defining the minimum and maximum Test lead voltage at which the equipment will operate. (Minimum #16 AWG with insulated alligator clips) Air temperatur
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ing and clamps. The entire refrigeration system has been factory charged and tested, making it unnecessary to field charge. Factory charges are shown on the unit nameplate. Install service manifold hoses. Gauges should read satura- tion pressure corresponding to ambient temperature. Charge should be checked to obtain 12° to 15° of sub-cooling per system (i.e. compressor circuits). START-UP PROCEDURE AND CHECKLIST Begin with power turned off at all disconnects. 1. Turn thermostat system switch to
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11. Slowly raise the heating temperature setting. When REFRIGERATION PERFORMANCE CHECK the heating first stage makes contact, stop raising the Under normal summertime (full load) operating conditions, temperature setting.. The compressor, blower and fan superheat should be between 8°F and 12°F and sub-cooling should now be running with the reversing valve in the measured at the condenser outlet should be 15°F (nominal). de-energized (heating) position. After giving the unit A 25°F to 35°F temper
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DEFROST CONTROL COOLING SERVICE PO RT REVERSING VALVE During operation the power to the circuit board is controlled SERVICE VALVE by a temperature sensor, which is clamped to a feeder tube entering the outdoor coil. Defrost timing periods of 30,60 and SERVICE PORT ACCUMULATOR 90 minutes may be selected by setting the circuit board jumper to 30, 60 and 90 respectively. Accumulation of time for the timing period selected starts when the sensor closes (ap- COMPRESSOR proximately 31° F), and when th
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DRIVE ADJUSTMENTS CAUTION MOTOR SHEAVE ADJUSTMENTS SHEET METAL PARTS, SCREWS, CLIPS AND SIMILAR ITEMS INHERENTLY VL, VM, & 2VP VARIABLE PITCH KEY TYPE MOTOR SHEAVES HAVE SHARP EDGES, AND IT IS NECESSARY THAT THE INSTALLER AND SERVICE PERSONNEL EXERCISE CAUTION. The driving and driven motor sheaves should be in align- ment with each other and the shafts parallel. The Self Contained Packaged Air Conditioner and Heat Pump should operate for many years without excessive service calls VL & VM SHEAV
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LUBRICATION UNDERCHARGE The fan shaft bearings, the 1 to 2 HP supply fan motors the An undercharged heat pump on the heating cycle will cause condenser fan motors and compressors are permanently lu- low discharge pressure resulting in low suction pressure and bricated. frost accumulation on the outdoor coil. FUNCTIONAL PARTS POOR “TERMINATING” SENSOR CONTACT Refer to the unit Parts Catalog for a list of functional parts. The unit’s defrost terminating sensor must make good ther- Parts are availa
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APPENDIX A BLOWER PERFORMANCE TABLES DIRECT DRIVE STANDARD DOWN SHOT AND HORIZONTAL CPC/H036 DIRECT DRIVE DOWN SHOT EXTERNAL STATIC STANDARD SPEED TAP PRESSURE (ESP) AMPS WATTS RPM CFM in w.c. 0.10 1287 1.66 350 770 0.20 1233 1.63 342 815 0.30 1176 1.59 332 858 LOW 0.40 1107 1.55 320 891 0.50 1044 1.51 312 924 0.60 965 1.45 296 957 0.10 1476 2.08 446 866 0.20 1421 2.03 432 885 0.30 1334 1.96 414 918 MED 0.40 1255 1.90 396 945 0.50 1180 1.84 386 971 0.60 1085 1.78 368 990 0.70 964 1.70
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APPENDIX A BLOWER PERFORMANCE TABLES DIRECT DRIVE STANDARD DOWN SHOT AND HORIZONTAL CPC/H048 DIRECT DRIVE DOWN SHOT EXTERNAL STATIC STANDARD SPEED TAP PRESSURE (ESP) AMPS WATTS RPM CFM in w.c. 0.10 1602 2.48 528 835 0.20 1538 2.37 506 878 LOW 0.30 1474 2.26 484 921 0.40 1390 2.15 460 950 0.50 1306 2.04 436 979 0.10 1805 2.84 620 935 0.20 1704 2.71 590 967 0.30 1625 2.59 558 990 MED 0.40 1549 2.47 540 1012 0.50 1437 2.38 516 1030 0.60 1301 2.23 480 1050 0.70 1158 2.09 444 1072 0.10 1971
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APPENDIX A BLOWER PERFORMANCE TABLES DIRECT DRIVE STANDARD CPC/H060 DOWN SHOT CPC/H060 DIRECT DRIVE DOWN SHOT EXTERNAL STATIC SPEED STANDARD PRESSURE (ESP) AMPS WATTS RPM TAP CFM in w.c. 0.10 1334 1.65 180 627 0.20 1286 1.75 192 665 0.30 1212 1.83 202 715 0.40 1144 1.94 216 759 T1 0.50 1077 1.99 222 792 0.60 1039 2.10 238 830 0.70 953 2.17 248 874 0.80 904 2.27 258 913 0.90 825 2.30 266 940 0.10 1512 2.12 240 682 0.20 1469 2.24 254 720 0.30 1397 2.31 264 759 0.40 1333 2.44 282 803 T2 0.
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APPENDIX A BLOWER PERFORMANCE TABLES DIRECT DRIVE STANDARD CPC/H060 HORIZONTAL CPC/H060 DIRECT DRIVE HORIZONTAL EXTERNAL STATIC SPEED STANDARD PRESSURE (ESP) AMPS WATTS RPM TAP CFM in w.c. 0.10 1355 1.57 174 599 0.20 1281 1.66 182 651 0.30 1235 1.76 196 693 0.40 1168 1.81 202 726 T1 0.50 1118 1.94 218 775 0.60 1049 2.03 232 819 0.70 982 2.10 240 858 0.80 922 2.14 246 885 0.90 871 2.25 260 927 0.10 1544 2.04 234 660 0.20 1490 2.17 250 704 0.30 1427 2.25 260 742 0.40 1370 2.35 276 781 T2
