Installation Instructions • • • • • • • • • • • Safety Labeling and Rules Installation Requirements Location/Clearances Air Distribution Wiring Ductwork Connections Start-Up Operation Maintenance Inspection Hoisting/Rigging 3 thru 7-1/2 Ton Belt Drive Models Electric Cool & Heat Printed in U.S.A.
I Installation Instructions Combination Units 1. Safety Labeling And Signal Words DANGER,WARNING AND CAUTION The signal words DANGER, WARNING and CAUTION are used to identify levels of hazard seriousness. The signal word DANGER is only used on product labels to signify an immediate hazard. The signal words WARNING and CAUTION will be used on product labels and throughout this manual and other manuals that may apply to the product.
I Combination Units Installation Instructions "C" CHASSIS UNIT DIMENSIONS 2-3/8" 3" (76.2) ) LOW VOLTAGE 1/2" (12.
Combination Units _ Installation Instructions 2. Safe Installation Requirements I Access Panels Figure 1 Installation or repairs made by unqualified persons can result in hazards to you and others. Installation MUST conform with local building codes or, in the absence of local codes, with the National Electrical Code NFPA70-1990 or in Canada the CSA C.22.1 - Canadian Electrical Code Part 1.
I Combination Units Installation Instructions CAUTION Figure 2 Unit will NOT operate properly unless it is installed level front to rear and side to side. Blockoff Plate (Return Air Compartment) Screw RooftopInstallation The existing roof structure MUST be adequate to support the weight of the unit or the roof MUST be reinforced. Check the weight of the unit in relation to the roof structure and local building codes or ordinances and reinforce if necessary.
Combination I Installation Instructions Figure 4 Condensate Trap Units I Thermostat NOTE: Do NOT attempt to use a thermostat designed for heat pump use. Such thermostats will NOT control the unit properly. The location of the thermostat has an important effect on the operation of the unit. FOLLOW THE INSTRUCTIONS INCLUDED WITH THE THERMOSTAT FOR CORRECT LOCATION, MOUNTING, AND WIRING. Heat Anticipator Set the thermostat heat anticipator to .58 in accordance with thermostat instructions. 80-30-27 4.
I Combination Units Installation 5. Air Distribution System Instructions Circulating Blower Determining Pulley Turns Ductwork NOTE: The total heat loss from the structure as expressed in total Btu/hr(Kw) MUST be calculated by manufacturer's method or in accordance with "A.S.H.R.A.E. Guide" or "Manual N - Load Calculations" published by the Air Conditioning Contractors of America or in Canada H.R.A.I. "Manual N".
_ Installation Instructions Combination Units Figure 5 Circulating Blower Performance Data - 3 Ton Units 208 Volts 780 720 U) 1-- 660 600 rr" 540 0 I-0 =E 48O 420 360 300 1100 1200 1300 1500 1400 CFM NOTES: 1)MaximummotorWattsis787Watts.2)Maximumblowerspeedist400RPM. 3)__ntactfact_ryf_rapp_icati_nsrequiring_perati_n_utsidesta_dardco__ing_perating range. 4) Airflowdata is basedondry coilwithfilters. 5) Puneyturnsrefersto turnsout. Inother words,0turnsisa narrowersheavethan5 turns.
I Combination Units Installation Instructions Figure 6 Circulating Blower Performance Data - 3 Ton Units 230 / 460 Volts d 9OO 1 ; ES.P, VSO:i @o TU_S 0.9 o3 LU •"r" 0.8O Z 0.7U.I n" 0.6:3 O3 O3 0.5ILl nI:1. 0.4- 840 780 720 O3 8°o 600 54O nO I- 0 48O 0.3_j 420 0.2- <_ Z n" LLI 0.1- 360 , Standard Cooling Operation I I , LU , tooo 900 , , Range I tt'oo , , , , I , 12'oo , , I , , , 13oo , , , 14oo , , 300 tsoo CFM NOTES: 1)MaximummotorWattsis808Watts.
_ Installation Instructions Figure 7 Combination Units Circulating Blower Performance Data - 4 Ton Units 208 Volts CHART 0 l t000 I &9 w :£ o &8 930 860 ==0.7 790 0.6 72O uJ t_ F- uJ 0.5 650 0.4 580 0.3 510 .J 0.2 440 z 0.1 0 F.0 370 w I o _ X w 300 1200 1300 1500 1400 1600 t700 t800 1900 2OOO CFM NOTES: 1. Maximum motor Watts is 928 Watts. 2. Airflow based on dry coil, horizontal flow, with filters. 3. For downflow SCFM, use a .15 static drop. 4.
I Combination Units Installation Instructions I Figure 8 Circulating Blower Performance Data - 4 Ton Units 230/460/575 Volts CHART O f I _F M Standard Cooling Operating 09 0.9 W 930 I 0.8 0 1000 I Range I URN _,,,_,_. I 71 T : - i 86O b_S ==0.7 79O 0.6 72O uJ t_ 09 09 uJ 0.5 o= _ 4 TU ...... _: ............... 650 0.4 580 0.3 510 09 .J 0.2 z 09 I== t_ 0 0 5; 440 I 0.1 370 w 0 X w 300 f200 1300 1400 1500 1600 1700 1800 1900 2000 CFM NOTES: 1.
_ Installation Instructions Combination Units Figure 9 Circulating Blower Performance Data - 5 Ton Units 208 Volts CHART t400 1290 t180 t070 740 0 F. 0 630 520 410 _gOperating Range 300 1500 t600 1700 1800 t900 2000 2100 2200 2300 2400 2500 CFM NOTES: 1. Maximum motor Watts is 1486 Watts. 2. Airflow based on dry coil, horizontal flow, with filters. 3. For downflow SCFM, use a .15 static drop. 4. Pulley turns refer to turns out. I.E. 0 turns is a narrower sheave than 5 turns. 5.
I Combination Units Installation Instructions Figure 10 Circulating Blower Performance Data - 5 Ton Units 230/460/575 Volts CHART t500 0.9 1400 0.8 t300 w 0.7 L t200 0.6 L 1100 0.5 L 1000 0.4 L 900 LL! 0 g 0 0,, .J 0.2 L 700 600 0.1 LJJ pX uJ S L 800 0.3 Z p. P I 0 I Standard Cooling Operating Range --------r-- 1500 500 t600 1700 1800 t900 2000 2100 2200 2300 2400 2500 CFM NOTES: 1. Maximum motor Watts is 1454 Watts. 2.
I Installation Instructions Combination Units I 1700 I Standard Cooling Operating Range I 1600 1500 1400 r_ 1300 i119o o O ' 1000 9OO 800 7OO 2100 2300 2500 2700 2900 3100 CFM NOTES: 1)MaximummotorWattsis 1538Watts. 2) Maximumblowerspeedis 1400RPM. 3) Contactfactoryfor applicationsrequiringoperationoutsidestandardcoolingoperatingrange. 4) Airflowdatais basedondry coilwithfilters. 5) Pulleyturnsrefersto turnsout. Inother words,0 turnsisa narrowersheavethan5turns.
I Combination Units Installation 1 i Instructions 1700 [Standard Cooling Operating Range] (1) 0.9 W 1600 r.) Z 0.8 1500 ILl 0.7 1400 "-_ 0.6 1300 €.0 uJ O.5 Pr o. _ 0.4 1200 1100 0.3 (/) I-- Pr 0 0I- 1000 9OO 8OO 7OO 2100 2300 2500 2700 2900 3100 CFM NOTES: 1)MaximummotorWattsis 1582Watts. 2) Maximumblowerspeedis 1400RPM. 3) Contactfactoryfor applicationsrequiringoperationoutsidestandardcoolingoperatingrange. 4) Airflowdatais basedondry coilwithfilters.
_ Installation Combination Instructions -.:t=m-,]--t=,A==:! = Units =.],,=,Jill 230, 460 VOLT 1.4 2200 1.2 2000 1800 0.8 1 600 O9 I-j- o_ uJ n, n _ 0.6 I-- 1400 I-o_ ,_ iii 0.4 1200 0.2 IOO0 _,,,_,,_s _'_'_''_'_" o 1600 _ | | i i i 2000 1800 I I 2200 2400 AIRFLOW (SCFM) I I 2600 I 2800 DRY COIL WITH n" 0 0 :E 800 3000 3200 FILTER NOTES:1)MaximummotorWattsis 2158Wattsat208V,and 2246Wattsat 230-460V. 2) Maximumblowerspeedis 1400RPM.
I Combination Units 6. Adjustable Installation Instructions Belt Drive Blower 10. Loosen set screw(s) on the outer half of the adjustable pulley. Personal injury hazard. The unit has one of two different types of adjustable pulleys (see Figure 12 and Figure 13). Use extreme care during the following procedures and obey Safety Information. I Figure 12 Adjustable Pulley (Keyway Type) Failure to do so may result in personal injury.
Combination Units _ Installation Instructions speed, turn the outer half of the adjustable pulley counterclockwise. Figure 15 I Checking Pulley Alignment 14. Replace key if unit has keyway type pulley. 15. Tighten set screw(s). 16. Put on belt. Figure 14 Checking Tension and Deflection Belt Tension Chart MODEL POUNDS TENSION FOR 1/4" DEFLECTION 7-1/2 ton 3.5 - 4 6-1/3 ton 3 - 3.5 5 Ton 2.5 - 3 3 & 4 Ton 2 - 2.5 Misaligned Misaligned 1054584 18.
I Combination Units Installation Instructions I 7. Economizer The purpose of an economizer is to: • • economizers or on the actuator motor of three-position economizers. Provide cool outside air to the conditioned space during the cooling cycle to minimize the use of the com- The enthalpy sensor is factory installed on the fresh air pressors. dampers of the economizer. The enthalpy change-over Bring outside air into the conditioned space to meet point is adjustable on the logic module.
I Installation Instructions 8. Start-up Combination Units I tion and be damaged. It is therefore necessary to check for proper rotation. Procedure CAUTION Electrical shock, fire and/or explosion hazard. Use extreme care during checks and procedures. all of the following Make sure Electric Power and is turned OFF as instructed in appropriate steps. Do NOT operate the unit with the compressor(s) running until proper blower rotation has been confirmed by running the following test. 7. .
I Combination Units 4. Installation Instructions Shut OFF electric power at unit disconnect. Turning Off the Unit 5. To check cooling Stage 2, remove jumper wires from Heating Y1 and place it on Y2. 1. Set thermostat selector to OFF and fan switch to AUTO. NOTE: Allow 5 minutes between Steps 4 and 6. 2. If electric heat is running at time of shut-down, wait 2.5 minutes then shut OFF electric power supply at disconnect switch or service panel. (No wait is necessary .
Combination _ Installation Instructions Adjusting Room Temperatures If the temperature in individual rooms is not as desired, balance the system by adjusting the dampers in the branch ducts (see Figure 16). Adjust a little at a time and wait a day after each change to judge the effect. Once the dampers are adjusted for normal weather conditions, it is best to leave them that way. Compensate for temporary weather changes by adjusting the thermostat setting. Figure 17 Typical Branch Duct Dampers 1.
m (3 o 3 "1'1 m, 60 0 8 o o o c C RIGGING INSTRUCTIONS FAILURE TO FOLLOW THESE INSTRUCTIONS RESULT IN PROPERTY DAMAOE, A WARNINGCAN E_ODILY INJURY OR DEATH_ ALL PANELS MUST BE IN PLACE WHEN RIGGING AND LIFTING. HOOK RIGGING SHACKLES THROUGH HOLES IN BASE RAIL, AS SHOWN IN DETAIL A. USE SPREADER BARS, WHEN RIGGING, TO PREVENT UNIT DAMAGE. BE SURE RIGGING AND SHACKLES ARE SUFFICIENT TO HANDLE WEIGHT LISTED BELOW. SPREADER BARS m, DETAIL t,..
INTERNATIONAL COMFORT PRODUCTS LIMITED WARRANTY CERTIFICATE For Cooling SAVE THIS CERTIFICATE. province It gives you specific & Heating Products legal rights, and you may also have other rights which may vary from state to state and to province. If your unit needs servicing, contact a qualified dealer or qualified service technician of your choice. When requesting service, please have the model and serial number from each unit in your heating and/or cooling system readily available.
ADDITIONAL TERMS FOR RESIDENTIAL APPLICATIONS ONLY The Additional Terms for the components listed below are in addition to, and subject to, the General Terms on the reverse side of this page. Warranty coverage is limited to parts that fail due to defect in materials or workmanship during the specified term. CENTRAL GAS & OIL FURNACE HEAT EXCHANGERS* Gas Model Series: C9MPV. HgMPV. TgMPV. CgMPT. H9MPT. T9MPT. C9MPD. HgMPD. TgMPD: Limited Lifetime Warranty on heat exchangers.
