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675E
Preferred™ 15.2+ SEER2 2-Stage Packaged
HYBRID HEAT® Dual Fuel System with Puron
Advance™ (R-454B) Refrigerant
Single Phase
2-5 Nominal Tons (Sizes 24-60)
IMPORTANT:
Effective January 1, 2015, all split system and
packaged air conditioners must be installed pursuant to applicable
regional efficiency standards issued by the Department of Energy.
NOTE:
Read the entire instruction manual before starting the
installation.
NOTE:
Installer: Make sure the Owner's Manual and Service
Instructions are left with the unit after installation.
Fig. 1 – Unit 675E
(Low NOx Model Available)
Table of Contents
Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Receiving and Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Transport and Storage Considerations . . . . . . . . . . . . . . . . . . . . . . 3
Identify Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Inspect Shipment. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Roof Curb . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Slab Mount . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Rigging/Lifting of Unit (See
Configuring Units for Downflow (Vertical) Discharge . . . . . . 12
High-Voltage Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Special Procedures for 208-v Operation . . . . . . . . . . . . . . . . . . 14
Control Voltage Connections . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Standard Connection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Leak Dissipation System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Leak Dissipation Control Board (DSB) . . . . . . . . . . . . . . . . . . 14
Heat Anticipator Setting (Electro-Mechanical Thermostats only)16
Balance Point Setting-Thermidistat or Hybrid Thermostat . . . 16
Transformer Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Pre-Start-up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Start-up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Installation Instructions
Fig.
6) . . . . . . . . . . . . . . . . . . . . . . 4
Check Gas Heating Control . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Check Gas Input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Adjust Gas Input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Check Burner Flame. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Normal Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Airflow and Temperature Rise . . . . . . . . . . . . . . . . . . . . . . . . . 23
Gas Heating Sequence of Operation. . . . . . . . . . . . . . . . . . . . . 23
Limit Switches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Rollout Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Checking Cooling Control Operation. . . . . . . . . . . . . . . . . . . . 23
Checking and Adjusting Refrigerant Charge . . . . . . . . . . . . . . 24
Indoor Airflow and Airflow Adjustments . . . . . . . . . . . . . . . . 24
Cooling Sequence of Operation . . . . . . . . . . . . . . . . . . . . . . . . 25
Demand Defrost Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
Air Filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
Indoor Blower and Motor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
Induced Draft (combustion air) Blower Assembly. . . . . . . . . . 46
Flue Gas Passageways . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
Limit Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
Burner Ignition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
Main Burners . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
Outdoor Coil, Indoor Coil, and Condensate Drain Pan . . . . . . 47
Outdoor Fan . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
Electrical Controls and Wiring . . . . . . . . . . . . . . . . . . . . . . . . . 48
Refrigerant Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
Gas Input. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
A09033
Evaporator Airflow. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
Defrost Thermostat . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
Puron Items. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
Metering Device (Thermostatic Expansion Valve & Piston) . . 49
Pressure Switches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
Loss of Charge Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
High-Pressure Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
Copeland Scroll Compressor (Puron Refrigerant) . . . . . . . . . . 50
Refrigerant System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
Servicing Systems on Roofs with Synthetic Materials. . . . . . . 50
Synthetic Roof Precautionary Procedure . . . . . . . . . . . . . . . . . 50
Liquid Line Filter Drier . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
Puron Advance (R-454B) Refrigerant Charging . . . . . . . . . . . 50
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
Start-up Checklist . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
Decommissioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
This unit is equipped with electrically powered safety measures. For the
safety measures to be effective, the unit must be electrically powered at
all times after installation, other than when servicing.
Safety Considerations
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Summary of Contents for Carrier bryant Preferred 675E
- Page 1 675E Preferred™ 15.2+ SEER2 2-Stage Packaged HYBRID HEAT® Dual Fuel System with Puron Advance™ (R-454B) Refrigerant Single Phase 2-5 Nominal Tons (Sizes 24-60) Installation Instructions IMPORTANT: Effective January 1, 2015, all split system and Check Gas Heating Control ......18 packaged air conditioners must be installed pursuant to applicable Check Gas Input .
- Page 2 675E: Installation Instructions WARNING WARNING PERSONAL INJURY AND PROPERTY DAMAGE CARBON MONOXIDE POISONING HAZARD HAZARD Failure to follow this warning could result in personal injury and/or death. Continuous fan mode required for proper functioning. Installation must meet the Required Minimum Dissipation Airflow as outlined in the Carbon Monoxide (CO) is a colorless, odorless, and tasteless poisonous Leak Dissipation System section.
- Page 3 675E: Installation Instructions and must be installed in California Air Quality Management Districts or WARNING any other regions in North America where a Low NOx rule exists. NOTE: Low NOx requirements apply only to natural gas installations. FIRE, EXPLOSION, ELECTRICAL SHOCK AND NOTICE CARBON MONOXIDE POISONING HAZARD Failure to follow this warning could result in personal injury or unit...
- Page 4 675E: Installation Instructions 2. An alternative to the adapter curb is to modify the existing curb by The outdoor fan pulls air through the outdoor coil and discharges it removing the outer horizontal flange and use accessory kit number through the top grille. Be sure that the fan discharge does not recirculate CPGSKTKIT001A00 which includes spacer blocks (for easy to the outdoor coil.
- Page 5 675E: Installation Instructions Lifting holes are provided in base rails as shown in Fig. 3 Fig. 1. Leave top shipping skid on the unit for use as a spreader bar to prevent the rigging straps from damaging the unit. If the skid is not available, use a spreader bar of sufficient length to protect the unit from damage.
- Page 6 675E: Installation Instructions A250112 Fig. 3 – 24 Unit Dimensions Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
- Page 7 675E: Installation Instructions A250113 Fig. 4 – 36-60 Unit Dimensions Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
- Page 8 675E: Installation Instructions SMALL/COMMON CURB SMALL SUPPLY BASE UNIT LARGE BASE RETURN UNIT UNIT PLACEMENT ON COMMON CURB SMALL OR LARGE BASE UNIT LARGE CURB A180216 B (large B (small / common UNIT CATALOG base) base) SIZE NUMBER IN. (mm) IN.
- Page 9 675E: Installation Instructions CAUTION - NOTICE TO RIGGERS PRUDENCE - AVIS AUX MANIPULATEUR ACCESS PANELS MUST BE IN PLA CE WHEN RIGGING. PANNEAUX D'ACCES DOIT ÊTRE EN PLACE POUR MANIPULATION. Use top skid as spreader bar. / Utiliser la palette du haut comme barre de répartition DUCTS MINIMUM HEIGHT: 36"...
- Page 10 Table 1 – Physical Data UNIT SIZE 24060 36060 36090 48090 48115 48130 60090 60115 60130 NOMINAL CAPACITY (ton) SHIPPING WEIGHT lb. SHIPPING WEIGHT (kg) COMPRESSORS Scroll Quantity REFRIGERANT (R-454B) Quantity lb 10.0 10.0 12.0 12.0 12.0 16.6 16.6 16.6 Quantity (kg) 7.53 7.53...
- Page 11 675E: Installation Instructions Step 6 – Connect Condensate Drain Step 8 – Install Gas Piping NOTE: When installing condensate drain connection be sure to comply The gas supply pipe enters the unit through the access hole provided. with local codes and restrictions. The gas connection to the unit is made to the 1/2-in.
- Page 12 675E: Installation Instructions Table 2 – Maximum Gas Flow Capacity † NOMINAL INTERNAL LENGTH OF PIPE FT (m) IRON PIPE DIAMETER SIZE (IN.) (IN.) (12) (15) (18) (21) (24) (27) (30) (38) (46) (53) (61) .622 — — .824 1.049 1-1/4 1.380 1400...
- Page 13 675E: Installation Instructions Step 10 – Install Electrical Connections WARNING ELECTRICAL SHOCK HAZARD Failure to follow this warning could result in personal injury or death. The unit cabinet must have an uninterrupted, unbroken electrical ground. This ground may consist of an electrical wire connected to the unit ground screw in the control compartment, or conduit approved for electrical ground when installed in accordance with NFPA 70 (NEC) (latest edition) (in Canada, Canadian Electrical Code CSA C22.1) and...
- Page 14 675E: Installation Instructions 1. Run the high-voltage (L1, L2) and ground lead into the control box. 2. Connect ground lead to chassis ground connection. 3. Locate the black and yellow wires connected to the line side of the contactor (if equipped). 4.
- Page 15 675E: Installation Instructions Test Button IMPORTANT: Press the Test Button for approximately ONE SECOND to enter Test Mode. Pressing the Test button for a longer period can possibly clear all fault code history (Table Table 3 – Dissipation Board Test Button Functions Hold Button Time (sec) Function Dissipation Mode for 60 sec...
- Page 16 675E: Installation Instructions Pre-Start-up speed. In this case, 901 CFM. Since 901 CFM is greater than 239 CFM, both cooling stage fan speeds are sufficient to deliver the required WARNING minimum dissipation airflow. Heat Anticipator Setting (Electro-Mechanical Thermostats only) ENVIRONMENTAL, FIRE, EXPLOSION, ELECTRICAL SHOCK HAZARD The room thermostat heat anticipator must be properly adjusted to ensure proper heating performance.
- Page 17 675E: Installation Instructions 4. Verify the following conditions: Leak detection equipment shall be calibrated to R-454B. If a leak a. Make sure gas line is free of air. Before lighting the unit for the above 20% of the LFL is found, proceed to recovery. first time, perform the following with the gas valve in the OFF 6.
- Page 18 675E: Installation Instructions degree above room temperature. Most thermostats will energize low stage only with a 1 degree differential. 8. The evaporator fan will turn on 30 sec after the flame has been established. If there is 24-v power to W1 only, the fan will run on low heat speed.
- Page 19 675E: Installation Instructions 1. 32 sec to complete one revolution. CAUTION 2. 3600 ÷ 32 = 112.5. 3. 112.5 x 1 =112.5 ft of gas flow/hr. UNIT DAMAGE HAZARD 4. 112.5 x 1050 = 118,125 Btuh input. Failure to follow this caution may result in reduced unit and/or If the desired gas input is 115,000 Btuh, only a minor change in the component life.
- Page 20 675E: Installation Instructions Table 6 – \Natural Gas Orifice Sizes and Manifold Pressure 208/230VAC Models Nameplate ALTITUDE OF INSTALLATION (FT. [m] ABOVE SEA LEVEL) U.S.A. Input, 0 to 2000 2001 to 3000* 3001 to 4000 4001 to 5000 5001 to 6000 High Stage [0 to 610] [610 to 914]...
- Page 21 675E: Installation Instructions A250115 Fig. 17 – 208/230-1-60 Connection Wiring Diagram Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
- Page 22 675E: Installation Instructions A250116 Fig. 18 – 208/230-1-60 Ladder Wiring Diagram Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
- Page 23 675E: Installation Instructions Normal Operation Table 8 – LED Indications An LED (light-emitting diode) indicator is provided on the integrated STATUS CODE LED INDICATION gas unit controller (IGC) to monitor operation. The IGC is located by Normal Operation removing the control access panel (see Fig.
- Page 24 675E: Installation Instructions Checking and Adjusting Refrigerant Charge Indoor Airflow and Airflow Adjustments The refrigerant system is fully charged with Puron (R-454B) refrigerant CAUTION and is tested and factory sealed. Allow system to operate a minimum of 15 minutes before checking or adjusting charge. UNIT OPERATION HAZARD NOTE: Adjustment of the refrigerant charge is not required unless the unit is suspected of not having the proper Puron Advance (R-454B)
- Page 25 675E: Installation Instructions Step 4 – Defrost Control Low Stage Cooling: Using Table 12 Table 14 and the nominal airflow for low stage cooling (Table 1) find the external static pressure drops for Demand Defrost Mode wet coil, economizer, and filter, and add them to dry coil measured on The defrost mode is factory set to an initial 60-minute time interval.
- Page 26 675E: Installation Instructions A230243 Fig. 19 – IGC Board 208/230 VAC Models Table 10 – Subcooling Charging Chart A250107 Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
- Page 27 Table 11 – Dry Coil Air Delivery** - Horizontal and Downflow Discharge Sizes 24-60 208/230 VAC - 1 Phase Heating Rise Motor Motor Speed ESP (in. W.C.) Unit Size Allowable Functions Speed Selection SW2-5 SW2-6 Continuous Fan* SW1-7 SW1-8 Dehumidification Low SW1-3 SW1-4 Low Stage Cooling...
- Page 28 Table 11 – Dry Coil Air Delivery** - Horizontal and Downflow Discharge Sizes 24-60 208/230 VAC - 1 Phase (Continued) Heating Rise Motor Motor Speed ESP (in. W.C.) Unit Size Allowable Functions Speed Selection SW1-5 SW1-6 Dehumidification High SW1-1 SW1-2 High Stage Cooling 0.11 0.12...
- Page 29 Table 11 – Dry Coil Air Delivery** - Horizontal and Downflow Discharge Sizes 24-60 208/230 VAC - 1 Phase (Continued) Heating Rise Motor Motor Speed ESP (in. W.C.) Unit Size Allowable Functions Speed Selection SW2-5 SW2-6 Continuous Fan SW1-7 SW1-8 Dehumidification Low SW1-3 SW1-4...
- Page 30 Table 11 – Dry Coil Air Delivery** - Horizontal and Downflow Discharge Sizes 24-60 208/230 VAC - 1 Phase (Continued) Heating Rise Motor Motor Speed ESP (in. W.C.) Unit Size Allowable Functions Speed Selection SW1-5 SW1-6 Dehumidification High 1164 1107 1051 SW1-1 SW1-2...
- Page 31 Table 11 – Dry Coil Air Delivery** - Horizontal and Downflow Discharge Sizes 24-60 208/230 VAC - 1 Phase (Continued) Heating Rise Motor Motor Speed ESP (in. W.C.) Unit Size Allowable Functions Speed Selection SW2-5 SW2-6 Continuous Fan* SW1-7 SW1-8 Dehumidification Low SW1-3 SW1-4...
- Page 32 Table 11 – Dry Coil Air Delivery** - Horizontal and Downflow Discharge Sizes 24-60 208/230 VAC - 1 Phase (Continued) Heating Rise Motor Motor Speed ESP (in. W.C.) Unit Size Allowable Functions Speed Selection SW1-5 SW1-6 Dehumidification High 1164 1107 1051 SW1-1 SW1-2...
- Page 33 Table 11 – Dry Coil Air Delivery** - Horizontal and Downflow Discharge Sizes 24-60 208/230 VAC - 1 Phase (Continued) Heating Rise Motor Motor Speed ESP (in. W.C.) Unit Size Allowable Functions Speed Selection SW2-5 SW2-6 Continuous Fan* SW1-7 SW1-8 Dehumidification Low SW1-3 SW1-4...
- Page 34 Table 11 – Dry Coil Air Delivery** - Horizontal and Downflow Discharge Sizes 24-60 208/230 VAC - 1 Phase (Continued) Heating Rise Motor Motor Speed ESP (in. W.C.) Unit Size Allowable Functions Speed Selection SW1-5 SW1-6 Dehumidification High 1383 1339 1296 1254 1209...
- Page 35 Table 11 – Dry Coil Air Delivery** - Horizontal and Downflow Discharge Sizes 24-60 208/230 VAC - 1 Phase (Continued) Heating Rise Motor Motor Speed ESP (in. W.C.) Unit Size Allowable Functions Speed Selection SW2-5 SW2-6 Continuous Fan* SW1-7 SW1-8 Dehumidification Low SW1-3 SW1-4...
- Page 36 Table 11 – Dry Coil Air Delivery** - Horizontal and Downflow Discharge Sizes 24-60 208/230 VAC - 1 Phase (Continued) Heating Rise Motor Motor Speed ESP (in. W.C.) Unit Size Allowable Functions Speed Selection SW1-5 SW1-6 Dehumidification High 1383 1339 1296 1254 1209...
- Page 37 Table 11 – Dry Coil Air Delivery** - Horizontal and Downflow Discharge Sizes 24-60 208/230 VAC - 1 Phase (Continued) Heating Rise Motor Motor Speed ESP (in. W.C.) Unit Size Allowable Functions Speed Selection SW2-5 SW2-6 Continuous Fan* SW1-7 SW1-8 Dehumidification Low SW1-3 SW1-4...
- Page 38 Table 11 – Dry Coil Air Delivery** - Horizontal and Downflow Discharge Sizes 24-60 208/230 VAC - 1 Phase (Continued) Heating Rise Motor Motor Speed ESP (in. W.C.) Unit Size Allowable Functions Speed Selection SW1-5 SW1-6 Dehumidification High 1383 1339 1296 1254 1209...
- Page 39 Table 11 – Dry Coil Air Delivery** - Horizontal and Downflow Discharge Sizes 24-60 208/230 VAC - 1 Phase (Continued) Heating Rise Motor Motor Speed ESP (in. W.C.) Unit Size Allowable Functions Speed Selection SW2-5 SW2-6 Continuous Fan* SW1-7 SW1-8 Dehumidification Low SW1-3 SW1-4...
- Page 40 Table 11 – Dry Coil Air Delivery** - Horizontal and Downflow Discharge Sizes 24-60 208/230 VAC - 1 Phase (Continued) Heating Rise Motor Motor Speed ESP (in. W.C.) Unit Size Allowable Functions Speed Selection SW1-5 SW1-6 Dehumidification High 1401 1364 1317 1271 1228...
- Page 41 Table 11 – Dry Coil Air Delivery** - Horizontal and Downflow Discharge Sizes 24-60 208/230 VAC - 1 Phase (Continued) Heating Rise Motor Motor Speed ESP (in. W.C.) Unit Size Allowable Functions Speed Selection SW2-5 SW2-6 Continuous Fan* SW1-7 SW1-8 Dehumidification Low SW1-3 SW1-4...
- Page 42 Table 11 – Dry Coil Air Delivery** - Horizontal and Downflow Discharge Sizes 24-60 208/230 VAC - 1 Phase (Continued) Heating Rise Motor Motor Speed ESP (in. W.C.) Unit Size Allowable Functions Speed Selection SW1-5 SW1-6 Dehumidification High 1401 1364 1317 1271 1228...
- Page 43 Table 11 – Dry Coil Air Delivery** - Horizontal and Downflow Discharge Sizes 24-60 208/230 VAC - 1 Phase (Continued) Heating Rise Motor Motor Speed ESP (in. W.C.) Unit Size Allowable Functions Speed Selection SW2-5 SW2-6 Continuous Fan* SW1-7 SW1-8 Dehumidification Low SW1-3 SW1-4...
- Page 44 Table 11 – Dry Coil Air Delivery** - Horizontal and Downflow Discharge Sizes 24-60 208/230 VAC - 1 Phase (Continued) Heating Rise Motor Motor Speed ESP (in. W.C.) Unit Size Allowable Functions Speed Selection SW1-5 SW1-6 Dehumidification High 1401 1364 1317 1271 1228...
- Page 45 Table 12 – Wet Coil Pressure Drop (IN. W.C.) Unit Standard CFM (SCFM) Size 1000 1100 1200 1300 1400 1500 1600 1700 1800 1900 2000 2100 0.02 0.03 0.04 0.04 0.05 0.06 0.03 0.04 0.05 0.05 0.06 0.07 0.08 0.08 0.09 0.10 0.11...
- Page 46 675E: Installation Instructions Maintenance 6. Check and inspect heating section before each heating season. Clean and adjust when necessary. To ensure continuing high performance and to minimize the possibility 7. Check flue hood and remove any obstructions, if necessary. of premature equipment failure, periodic maintenance must be Air Filter performed on this equipment.
- Page 47 675E: Installation Instructions season. For the first heating season, inspect blower wheel bimonthly to WARNING determine proper cleaning frequency. To inspect blower wheel, remove draft hood assembly. Shine a flashlight FIRE, EXPLOSION HAZARD into opening to inspect wheel. If cleaning is required, remove induced-draft blower assembly as follows: Failure to follow this warning could result in personal injury, death or property damage.
- Page 48 675E: Installation Instructions Outdoor Fan CAUTION UNIT OPERATION HAZARD Failure to follow this caution may result in damage to unit components. Keep the condenser fan free from all obstructions to ensure proper cooling operation. Never place articles on top of the unit. 1.
- Page 49 675E: Installation Instructions FAN GRILLE MOTOR MOTOR SHAFT A08505 MAX DISTANCE BETWEEN TOP OF FAN GRILLE AND BOTTOM OF FAN BLADE “A” Size Fig. 24 – Fan Blade Position Gas Input constant superheat at the evaporator coil exit (cooling mode) resulting in higher overall system efficiency.
- Page 50 675E: Installation Instructions Copeland Scroll Compressor (Puron Refrigerant) Synthetic Roof Precautionary Procedure The compressor used in this product is specifically designed to operate 1. Cover extended roof working area with an impermeable with Puron Advance (R-454B) refrigerant and cannot be interchanged. polyethylene (plastic) drip cloth or tarp.
- Page 51 675E: Installation Instructions C99097 Fig. 26 – Refrigerant Circuit C03011 Fig. 27 – Typical Heat Pump Operation, Cooling Mode Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
- Page 52 675E: Installation Instructions C03012 Fig. 28 – Typical Heat Pump Operation, Heating Mode Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
- Page 53 675E: Installation Instructions Table 15 – Troubleshooting Chart SYMPTOM CAUSE REMEDY Power failure Call power company Fuse blown or circuit breaker tripped Replace fuse or reset circuit breaker Defective contactor, transformer, or high-pressure, loss-of-charge or low-pressure Replace component Compressor and condenser fan will not start. switch Insufficient line voltage Determine cause and correct...
- Page 54 675E: Installation Instructions Table 16 – Troubleshooting Guide–Heating SYMPTOM CAUSE REMEDY Water in gas line Drain. Install drip leg. No power to furnace Check power supply fuses, wiring or circuit breaker. Check transformer. No 24-v power supply to control circuit NOTE: Some transformers have internal over-current protection that requires a cool-down period to reset.
- Page 55 675E: Installation Instructions A240111 Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
- Page 56 675E: Installation Instructions Start-Up Checklist (Remove and Store in Job Files) I. PRELIMINARY INFORMATION MODEL NO.: ____________________________________________________________ SERIAL NO.: ____________________________________________________________ DATE: __________________________________________________________________ TECHNICIAN: ___________________________________________________________ II. PRESTART-UP (Insert check mark in box as each item is completed) ( ) VERIFY THAT ALL PACKING MATERIALS HAVE BEEN REMOVED FROM UNIT ( ) REMOVE ALL SHIPPING HOLD DOWN BOLTS AND BRACKETS PER INSTALLATION INSTRUCTIONS ( ) CHECK ALL ELECTRICAL CONNECTIONS AND TERMINALS FOR TIGHTNESS ( ) CHECK GAS PIPING FOR LEAKS (WHERE APPLICABLE)
- Page 57 © 2025 Carrier. All rights reserved. Edition Date: 03/25 Catalog No: II675E-01 A Proud Member of the Carrier Family Replaces: New Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
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