Century Comfort-Aire RSG1618S1P Service Manual

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SERVICE MANUAL

RSG16P

This is a safety alert symbol and should never be ignored. When you see this symbol on labels or in manuals, be alert to

the potential for personal injury or death.

WARNING

Improper installation, adjustment, alteration, service

or maintenance can cause property damage, personal

injury or loss of life. Installation and service must be

performed by a licensed professional HVAC installer (or

equivalent), service agency or the gas supplier.

CAUTION

As with any mechanical equipment, contact with sharp

sheet metal edges can result in personal injury. Take

care while handling this equipment and wear gloves

and protective clothing.

508228-01

Technical Specifications - RSG16P .............................2

Installation ...................................................................6

Refrigeration Piping .....................................................9

Electrical Wiring .........................................................18

Sequence of Operation..............................................21

Start-Up .....................................................................21

Maintenance ..............................................................22

Wiring Diagram ..........................................................24

Servicing Units Void of Charge ..................................25

System Refrigerant ....................................................25

Charge Labels ...........................................................28

Start-Up and Performance Checklist .........................29

Electric shock hazard.

Can cause injury or death. Before attempting

to perform any service or maintenance,

turn the electrical power to unit OFF at

disconnect switch(es). Unit may have

multiple power supplies.

*P508228-01*

Issue 2136

WARNING

(P) 508228-01

Page 1 of 29

Table of Contents

Summary of Contents for Century Comfort-Aire RSG1618S1P

Page 1: Table Of Contents
SERVICE MANUAL RSG16P This is a safety alert symbol and should never be ignored. When you see this symbol on labels or in manuals, be alert to the potential for personal injury or death. Table of Contents Technical Specifications - RSG16P ......2 Installation ..............6 Refrigeration Piping .............9 Electrical Wiring ............18...
Page 2: Technical Specifications - Rsg16P
Technical Speci ications - RSG16P MODEL NUMBER GUIDE Minimum SEER Series/ Residential Split ‘Green’ Gas Capacity S = Scroll Power Revision Condenser System R-410A BTUH x 1000 Compressor 1 = 208/230-1-60 PHYSICAL AND ELECTRICAL DATA Outdoor Fan Max. Compressor Motor Over Min.
Page 3 REFRIGERATION DATA Refrigerant Line Size Outdoor Unit Connection Indoor Unit Connection Refrig. Charge Model (oz.) * Suction Liquid Suction Liquid Suction Liquid RSG1618S1P RSG1624S1P RSG1630S1P RSG1636S1P RSG1641S1P RSG1647S1P *Factory charged for 15 feet of line set ** Adapter shipped with unit ACCESSORIES Description Where Used...
Page 4 FAN BLADE SPECS Fan Blade RSG16P Dia. #of Blades Pitch Part # 98M18 43W37 43W37 15X85 43W37 21W10 Page 4 of 29 Issue 2136 508228-01...
Page 5 NOTE — Plumbing layout and compressor type may vary between model sizes. CONTROL COMPRESSOR DUAL RUN CAPACITOR THERMAL SWITCH GROUND LUG DISCHARGE LINE COMPRESSOR HARNESS CONNECTION CONTACTOR OUTDOOR COIL CUTOUT FOR HIGH VOLTAGE CONDUIT CONTROL WIRE LOOP CRANKCASE HEATER THERMOSTAT CRANKCASE HEATER SUCTION LINE SERVICE VALVE LIQUID LINE SERVICE VALVE...
Page 6: Installation
Installation NOTE: In some cases, noise in the living area has been • Locate unit away from overhanging roof lines which traced to gas pulsations from improper installation of would allow water or ice to drop on, or in front of, coil equipment.
Page 7 Discharge Air Building Structure 24” Mounting Slab 6”* Ground Level Mounting slab must slope slightly away from building, not to exceed 1/4” per foot. 30” around Control Figure 2. Slab Mounting NOTE: See Table 1 for specific minimum clearance guidelines. Elevate Unit Figure 3.
Page 8 Torque Requirements Liquid and Suction Line Service Valves When servicing or repairing heating, ventilating, and The liquid line and suction line service valves (see Figure air conditioning components, ensure the fasteners are 4) and service ports are used for leak testing, evacuation, appropriately tightened.
Page 9: Refrigeration Piping
Refrigeration Piping • Use only refrigerant grade copper tubes. • Split systems may be installed with up to 50 feet of line set (no more than 20 feet vertical) without special consideration (see long line set guidelines). • Ensure that vapor and liquid tube diameters are appropriate to capacity of unit.
Page 10 LINE SET IMPORTANT — Refrigerant lines must not contact structure. INSTALLATION REFRIGERANT LINE SET — INSTALLING Line Set Isolation — The following illustrations are VERTICAL RUNS (NEW CONSTRUCTION SHOWN) examples of proper refrigerant line set isolation: NOTE — Insulate liquid line when it is routed through areas where the surrounding ambient temperature could become higher than the REFRIGERANT LINE SET —...
Page 11 It is recommended that vertical suction risers not be up- STUB END sized. Proper oil return to the compressor should be TWO-PIECE PATCH PLATE LIQUID LINE (UNCASED COIL ONLY) maintained with suction gas velocity. ORIFICE EXPANSION HOUSING VALVE DISTRIBUTOR TUBES ®...
Page 12 1. Connect gauges and equipment as shown in Figure 7. CYLINDER CONTAINING GAUGE CLEAN R-410A TO BE Set the recovery machine for liquid recovery and start MANIFOLD USED FOR FLUSHING the recovery machine. Open the gauge set valves to (Positioned to deliver liquid refrigerant) allow the recovery machine to pull a vacuum on the HIGH...
Page 13 Refrigerant Piping - Install Indoor Expansion Valve This outdoor unit is designed for use in systems that include an expansion valve metering device (purchased separately) at the indoor coil. See the Product Specifications for approved expansion valve kit match-ups and application information. The check expansion valve unit can be installed internal or external to the indoor coil.
Page 14 Refrigerant Piping - Brazing Procedures CAP AND CORE REMOVAL CUT AND DEBUR Cut ends of the refrigerant lines square (free from nicks or dents) Remove service cap and core from and debur the ends. The pipe must remain round. Do not crimp end both the vapor and liquid line service of the line.
Page 15 WRAP SERVICE VALVES To help protect service valve seals during brazing, wrap water-saturated cloths around service valve bodies and copper tube stubs. Use additional water-saturated cloths underneath the valve body to protect the base paint. FLOW NITROGEN Flow regulated nitrogen (at 1 to 2 psig) through the refrigeration gauge set into the valve stem port connection on the liquid service valve and out of the vapor valve stem port.
Page 16 Leak Test and Evacuation LEAK TEST HIGH MANIFOLD GAUGE SET OUTDOOR UNIT TO VAPOR SERVICE VALVE NOTE - Position canister to deliver liquid refrigerant. NITROGEN HFC-410A CONNECT GAUGE SET A - Connect the high pressure hose of an HFC-410A manifold gauge set to the vapor valve service port. NOTE - Normally, the high pressure hose is connected to the liquid line port.
Page 17 EVACUATION HIGH CONNECT GAUGE SET NOTE - Remove cores from service valves (if not already done). A - Connect low side of manifold gauge set with 1/4 SAE in-line tee to vapor line service valve B - Connect high side of manifold gauge set to OUTDOOR MANIFOLD liquid line service valve...
Page 18: Electrical Wiring
Ground unit at unit disconnect switch or to an earth Electrical Wiring ground. To facilitate conduit, a hole is in the bottom of the control box. Connect conduit to the control box All field wiring must be done in accordance with the National using a proper conduit fitting.
Page 19 HIGH PRESSURE SWITCH (S4) — LIQUID LINE CRANKCASE HEATER (HR1) CRANKCASE THERMOSTAT (S40) Figure 9. Typical Factory Wiring Diagram (Copeland Compressor) 508228-01 Issue 2136 Page 19 of 29...
Page 20 THERMAL PROTECTION SWITCH (S5 OR S173) HIGH PRESSURE SWITCH (S4) — LIQUID LINE CRANKCASE HEATER (HR1) CRANKCASE THERMOSTAT (S40) Figure 11. Typical Factory Wiring Diagram (Interlink Compressor) 508228-01 Issue 2136 Page 20 of 29...
Page 21: Sequence Of Operation
Refrigerant Charging Sequence of Operation CAUTION NOTE: The thermostat used may be electromechanical or electronic. Excessive amounts of liquid refrigerant entering the suction line can damage the compressor. When adding NOTE: Transformer in indoor unit supplies power (24 VAC) refrigerant, precautions must be taken to control the to the thermostat and outdoor unit controls.
Page 22: Maintenance
cooling mode using the subcooling method and table NOTE: All unit table values are based on 70 to 80°F provided on the unit access panel. indoor return air temperature for cooling mode, and 65°F to 75°F return air temperature for heat mode. •...
Page 23 WARNING To prevent personal injury, or damage to panels, unit or structure, be sure to observe the following: While installing or servicing this unit, carefully stow all removed panels out of the way, so that the panels will not cause injury to personnel, nor cause damage to objects or structures nearby, nor will the panels be subjected to damage (e.g., being bent or scratched).
Page 24: Wiring Diagram
Wiring Diagram Figure 14. A/C Single Phase Wiring Diagram 508228-01 Issue 2136 Page 24 of 29...
Page 25: Servicing Units Void Of Charge
Servicing Units Void of Charge System Refrigerant If the outdoor unit is void of refrigerant, clean the system This section outlines procedures for: using the procedure described below. Connecting gauge set for testing and charging; Leak check system using procedure outlined on Page Checking and adjusting indoor airflow;...
Page 26 Adding or Removing Refrigerant This system uses HFC-410A refrigerant which operates at much higher pressures than HCFC-22. The pre-installed liquid line filter drier is approved for use with HFC-410A only. Do not replace it with components designed for use with HCFC-22. This unit is NOT approved for use with coils which use capillary tubes or fixed orifices as a refrigerant metering device.
Page 27 Psig Psig °F °C °F °C -40.0 11.6 15.6 170.0 -37.2 14.9 18.3 185.0 -34.4 18.5 21.1 201.0 -31.7 22.5 23.9 217.0 -28.9 26.9 26.7 235.0 -26.1 31.7 29.4 254.0 -23.3 36.8 32.2 274.0 -20.6 42.5 35.0 295.0 -17.8 48.6 37.8 317.0 -15.0...
Page 28: Charge Labels
Charge Labels Figure 16. RSG16P Page 28 of 29 Issue 2136 508228-01...
Page 29: Start-Up And Performance Checklist
Start-Up and Performance Checklist Job Name _________________________________________ Job no. _____________________________ Date ________________ Job Location ____________________________________________ City ______________________ State ____________________ Installer ________________________________________________ City ______________________ State ____________________ Unit Model No. _____________________ Serial No. __________________________ Service Technician ____________________ Nameplate Voltage __________________________________________________________________________________________ Rated Load Ampacity ________________ Compressor _______________________ Outdoor Fan ________________________ Maximum Fuse or Circuit Breaker _______________________________________________________________________________ □...

This manual is also suitable for:

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