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INSTALLATION INSTRUCTIONS FOR
LIGHT COMMERCIAL SELF-CONTAINED
PACKAGED HEATING & COOLING UNIT
3 TON - 6 TON CPC/CPH SERIES
®
C US
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
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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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NATIONAL CODES WARNING This product is designed and manufactured to permit instal- lation in accordance with National Codes. It is the installer’s THIS UNIT MUST NOT BE USED AS A “CONSTRUCTION HEATER” responsibility to install the product in accordance with Na- DURING THE FINISHING PHASES OF CONSTRUCTION ON A NEW tional Codes and/or prevailing local codes and regulations. STRUCTURE. THIS TYPE OF USE MAY RESULT IN PREMATURE FAILURE OF THE UNIT DUE TO EXTREMELY LOW RETURN AIR TEMPERATURES AND
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• When the unit is heating, the temperature of the return NOTE: When inspecting the unit for transportation damage, air entering the unit must be between 50°F and 100°F. remove all packaging materials. Recycle or dispose of the packaging material according to local codes. GROUND LEVEL INSTALLATIONS ONLY: PRE-INSTALLATION CHECKS • When the unit is installed on the ground adjacent to the building, a level concrete (or equal) base is Carefully read all instructions for the installation prior to in
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Adequate clearance around the unit should be kept for safety, WARNING service, maintenance, and proper unit operation. A total clear- ance of 75” on the main control panel side of the unit is rec- TO PREVENT POSSIBLE EQUIPMENT DAMAGE, PROPERTY DAMAGE, ommended to facilitate possible fan shaft, coil, and electric PERSONAL INJURY OR DEATH, THE FOLLOWING BULLET POINTS MUST heat. A clearance of 48” is recommended on all other sides BE OBSERVED WHEN INSTALLING THE UNIT. of the unit to facilitate
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PROTRUSION RIGGING DETAILS Inspect curb to ensure that none of the utility services (elec- WARNING tric) routed through the curb protrude above the curb. O PREVENT PROPERTY DAMAGE, THE UNIT SHOULD REMAIN IN AN UPRIGHT T POSITION DURING ALL RIGGING AND MOVING OPERATIONS. TO FACILITATE CAUTION LIFTING AND MOVING WHEN A CRANE IS USED, PLACE THE UNIT IN AN ADEQUATE CABLE SLING. IF PROTRUSIONS EXIST, DO NO ATTEMPT TO SET UNIT ON CURB. ROOF TOP DUCT CONNECTIONS CAUTION Install all duct connections on
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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 Corner Weights ( lbs ) X Y Shipping Weight Operating Weight 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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de-energized (heating) position. After giving the unit that compressor RLA corresponds to values shown in Ap- time to settle out, make sure the unit is supplying pendix C. RLA draw can be much lower than values listed at heated air. low load conditions and low ambient condensing tempera- tures. Values in Appendix C can slightly exceed at high load 12. If the outdoor ambient is above 80°F, the unit may trip conditions and high ambient condensing temperatures. on its high pressure cut out when on
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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 connecting the circuit board jumper to 30, 60 and 90 respectively. Accumulation of time for the timing period selected starts when the sensor closes COMPRESSOR (approximately 31° F), and when t
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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
