TABLE OF CONTENTS Electrical Data Table of Contents Line Voltage Field Wiring Model Nomenclature Low Voltage Field Wiring Storage Water Valve Wiring Pre-Installation Freeze Protection Selection Physical Data Electrical Wiring Schematic Physical Dimensions CXM Module Description Equipment Selection Control/Unit Troubleshooting Split System Coil Application Guide Operating Limits Unit Installation...
GENERAL INFORMATION MODEL NOMENCLATURE 38 WQ-S 018 SS C 3 Packing Prefix Rev. Code Series S = Split Power 3 = 230/1PH/60HZ Size Condenser 18,24,30,36,42,48, or 60 C = Copper D = CU w/HWG Standard N= Cupro-Nickel(CN) P = CN w/HWG Inspection due precautions must be taken to avoid physical damage Upon receipt of the equipment, carefully check the...
It is recommended that a new coil or airhandler be components such as fan motors, coil and cabinet. installed with the GT-S due to the low initial cost of the Split System Coil Application Guide The 50YCS (GT-G)/38WQS (GTR-S) series units have been tested in accordance with ARI standard 330.
GT-S Mounting Although the air handler section of this manual does not GT-S unit may be mounted on an ASP2436P air pad with contain a comprehensive installation instruction it does loop access hole as shown in Figure 1. When mounting provide many useful diagrams and tables specific to the on an existing concrete condenser pad 3"...
Figure 4. The Female Locking Ring is threaded onto the pipe threads which holds the male pipe end The Flow Controller can be mounted in the GT-S unit against the gasket, and seals the joint. HAND directly inside the cabinet as shown in Figure 3. Studs are TIGHTEN ONLY! DO NOT OVERTIGHTEN! provided with which to mount the flow controller.
Fill loop with water from a garden hose through flush higher in the winter months than during the cooling cart before using flush cart pump to ensure an even fill. season. This fluctuation is normal and should be Once full, do not allow the water level in the flush cart considered when charging the system initially.
OPEN LOOP - GROUND WATER SYSTEMS ALTHOUGH THE GT-S IS COMPATIBLE WITH Expansion Tank and Pump OPEN LOOP APPLICATIONS, IT HAS BEEN Use a closed, bladder-type expansion tank to minimize DESIGNED FOR OUTDOOR EARTH LOOP mineral formation due to air exposure. The expansion APPLICATIONS.
Line sets bled through the system at 2-3 psi to prevent oxidation over 60 feet long are not recommended on the GT-S inside the refrigerant tubing. Use a low silver phos- copper braze alloy on all brazed connections.
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Figure 9. Typical GT-S/ Air Handler Installation Power Disconnects Air Handler Condensing Insulated line Unit set with UV Paint TXV ‘IN’ toward outdoor condensing Uni t Return Plenum Air Pad PVC Condensate Low Voltage Wiring with vented trap Figure 10. Typical GT-S/Add-on Coil Installation TXV ‘IN’...
The TXV can be braze into place as shown keeping the Evacuate the system through both service ports in the 'IN' side toward the outdoor GT-S unit. The TXV has an shipping position (full CW in) to prevent false readings...
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1. Measure the temperature of the liquid line on the outside the GT-S cabinet and either the liquid line service small refrigerant line (liquid line) just outside the valve pressure or the compressor discharge pressure.
Open Valves CW Close valves The GT-S utilizes an add-on Hot Water Generator CCW as looking up from module that ties into the hot gas line of the GT-S outdoor underneath unit. The HWG module is remotely mounted near the...
Wire size based on 60°C copper conductor All fuses Class RK-5 General Line Voltage Wiring Figure 14. GT-S Line Voltage Field Wiring. Be sure the available power is the same voltage and phase as that shown on the unit serial plate. Line and low...
Taco Valve Heater Switch A terminal paralleling the compressor contactor coil have been provided on the CXM/DXM control of the GT-S line. "A" has been provided to control accessory devices, such as water valves, electronic air cleaners, humidifiers, etc. This terminal should be used only with 24 volt signals and not line voltage signals.
CXM CONTROL DESCRIPTION Features Retry Mode - If the control is attempting a retry of a fault, the status LED will slow flash (slow flash=one flash • Anti-short cycle protection every 2 seconds) to indicate the control is in process of •...
Safety Features pressure (loss of charge) fault. The Low Pressure Switch The following safety features are provided to protect the input is bypassed for the initial 60 seconds of a compres- compressor, heat exchangers, wiring and other compo- nents from damage caused by operation outside of design sor run cycle.
excluding LED and Alarm Relay, will NOT be affected 80 second random start delay. There will also be a 5 min by UPS. The UPS condition cannot occur during a compressor anti-short cycle protection time as well. After compressor off cycle. During UPS warning, the alarm the random start delay, the compressor relay is energized.
TROUBLESHOOTING The thermistor resistance should be measured with the General connector removed so that only the impedance of the CXM board troubleshooting in general is best summa- thermistor is measured. If desired this reading can be rized as simply varifying inputs and outputs. After this compared to the chart shown in the thermistor section of process has been varified, confidence in board operation this manual based upon the actual termperature of the...
Preliminary Trouble Inspection After completing the preliminary checks described above, be sure to inspect for other obvious problems such WARNING as leaking connections, broken or disconnected wires, etc. HAZARDOUS VOLTAGE! DISCONNECT ALL ELECTRIC POWER INCLUDING REMOTE If everything appears to be in order, but the unit still fails DISCONNECTS BEFORE SERVICING.
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Functional Troubleshooting Fault Htg Clg Possible Cause Solution Main power Problems Green Status LED Off Check Line Voltage circuit breaker and disconnect Check for line voltage between L1 and L2 on the contactor Check for 24VAC between R and C on CXM Check primary/secondary voltage on transformer HP Fault-Code 2 Reduced or no water flow...
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Functional Troubleshooting (cont.) Check G wiring at heat pump. Jumper G and R for fan Only Compressor Runs Thermostat wiring operation. Jumper G and R for fan operation. Check for Line voltage Fan motor relay across BR contacts. Check fan power enable relay operation (if present) Fan motor Check for line voltage at motor.
Starting Conditions GT-S Units – Units start and operate in an ambient of - 10° F with entering air at 40° F, entering water at 20° F Table 16. Operating Limit...
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START UP PROCEDURE by comparing unit pressure drop across the heat WARNING exchanger versus the data in Table 18. Heat of When the disconnect switch is closed, high voltage is rejection can be calculated and compared to present in some areas of the electrical panel. Exercise specification catalog.
Table 17. Water Temperature Change Through Heat Table 18. Water Pressure Drop Table Exchanger Pressure Drop (psi) Paradigm G P M Model 30°F 50°F 70°F 90°F Rise Drop Water Flow Rate (GPM) (Clg) (Htg) For Closed Loop: Ground Source or 9 - 12 4 - 8 Cooler/Boiler systems at 3 gpm/ton...
PREVENTIVE MAINTENANCE Water Coil Maintenance – Condensate Drain – In areas where airborne bacteria (Direct Ground Water Applications Only) produce a slime in the drain pan, it may be necessary to treat chemically with an algaecide every three months or If the installation is performed in an area with a known so to minimize the problem.
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7300 S.W. 44th Street *69197345* Oklahoma City, OK 73179 Phone: 405-745-2920 Fax: 405-745-6620 Part #:69197345 The manufacturer works continually to improve its products. As a result, the design and specifications of each product at the time of order may be changed without notice and may not be as described herein.
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