Service Instructions Model and Manufacturing numbers listed on page 6 PHB**C, PHD**C PACKAGE HEAT PUMPS PGA**C, PGB**C, PGD**C PACKAGE GAS & PCC**C PACKAGE COOLERS This manual is to be used by qualified HVAC technicians only. Amana does not assume any responsibility for property damage or personal injury for improper service procedures done by an unqualified person.
INDEX PRODUCT IDENTIFICATION ................................................................................. 5 - 11 PRODUCT DESIGN Electrical Wiring ............................................................................................. 12 - 13 Gas Piping ..................................................................................................... 13 - 15 SYSTEM OPERATION Refrigeration Cycle ........................................................................................
IMPORTANT INFORMATION Pride and workmanship go into every product to provide our customers with quality products. It is possible, however, that during its lifetime a product may require service. Products should be serviced only by a qualified service technician who is familiar with the safety procedures required in the repair and who is equipped with the proper tools, parts, testing instruments and the appropriate service manual.
IMPORTANT INFORMATION WARNING SYSTEM CONTAMINANTS, IMPROPER SERVICE PROCEDURE AND/OR PHYSICAL ABUSE AFFECTING HERMETIC COMPRESSOR ELECTRICAL TERMINALS MAY CAUSE DANGEROUS SYSTEM VENTING. System contaminants, improper Service Procedure and/or physical abuse affecting hermetic compressor electrical terminals may cause dangerous system venting.
PRODUCT IDENTIFICATION P G B 24 C 045 2 Product Type D Engineering Revision Single Package Cooling/Heating Voltage 2: 230V/60Hz/1ph Product Family G - Gas/Electric H - Heat Pump C - Cooling Heating Input Product Series 00: A: 10 SEER Line B: 11 SEER Line C: 12 SEER Line D: 13 SEER Line Nominal Capacity 24: 30: 36: 42: 48: 60: 24000 30000 36000 42000 48000 60000 BTUH BTUH BTUH BTUH BTUH BTUH 045: 070: 090: 115: 140: HEAT PUMPS No heat inst.
PRODUCT IDENTIFICATION Model # Manufacturing # Description Package Gas (A) 10 Seer gas/electric units. New chassis design with PGA60C0902D P1217301C-P1217302C smaller footprint. PGA models have stronger blower performance for down PGA60C1152D shot applications. Package Gas (A) 10 Seer gas/electric units. Changed from 26" fan blade to PGA60C0902D P1220301C-1220302C 22" fan blade to improve operating sound. PGA models have stronger blower PGA60C1152D performance for down shot applications.
PRODUCT IDENTIFICATION Additional Amana accessories, as described below, can be purchased to fit specific application needs. Accessories can be ordered by the following part numbers and each accessory includes its own separate instructions. ACCESSORY PART NUMBER DESCRIPTION Duct Transition Round RSDK01A (24-60) Converts existing round duct connections to rectangular. Used to install the horizontal duct cover kit on heat pump units.
PRODUCT IDENTIFICATION FOR YOUR SAFETY READ BEFORE OPERATING WARNING If you do not follow these instructions LIRE AVANT DE METTRE EN MARCHELIRE AVERTISSEMENT: Ouiconque ne respcte pas `a la lettre les instructions dans le present manuel risque de declencher un incendie ou une explosion entrainant des dommages materiels, des lesions corporelles ou la perte de vies humaines. exactly, a fire or explosion may result causing property damage, personal injury or loss of life. A.
PRODUCT IDENTIFICATION WARNING 36" Side Clearance for Servicing Recommended 24" Clearance (Condenser End) TO PREVENT POSSIBLE DAMAGE, THE UNIT SHOULD REMAIN IN AN UPRIGHT POSITION DURING ALL RIGGING AND MOVING OPERATIONS. TO FACILITATE LIFTING AND MOVING IF A CRANE IS USED, PLACE THE UNIT IN AN ADEQUATE CABLE SLIDE.
PRODUCT IDENTIFICATION 1" 42-3 /8" " 35 14" SUPPLY 19-3 RETURN /16" 19-3 " 19 /16" PRC06A1 ROOF CURB 12" 8" -3/ 2 4 47" 2" SUPPLY RETURN " 25 25" " 12 2" PRC07A1 ROOF CURB 10 14"
PRODUCT IDENTIFICATION 1 14 42 3/8 24 3/8 47 2 RETURN SUPPLY 14 12 14 35 INSULATED PLATFORM UNIT SUPPORT PRC08A ROOF CURB J A H 1.
PRODUCT DESIGN The single phase units use permanent split capacitors (PSC) design compressors. Starting components are therefore not required. A low MFD run capacitor assists the compressor to start and remains in the circuit during operation. The outdoor fan and indoor blower motors are single phase capacitor type motors. Air for condensing (cooling cycle) or evaporation (heating cycle) is drawn through the outdoor coil by a propeller fan, and is discharged vertically out the top of the unit.
PRODUCT DESIGN or, in their absence, with the latest edition of the National Electrical Code, ANSI/NFPA No. 70, or in Canada, Canadian Electrical Code, C22.1, Part 1. A fused disconnected must be provided and sized in accordance with the unit minimum circuit ampacity. The best protection for the wiring is the smallest fuse or breaker which will hold the equipment on line during normal operation without nuisance trips. Such a device will provide maximum circuit protection.
PRODUCT DESIGN 3. Use ground joint unions. 4. Install a drip leg to trap dirt and moisture before it can enter the gas valve. The drip leg must be a minimum of three inches long. 5. Use two pipe wrenches when making connection to the gas valve to keep it from turning. 6. Install a manual shut off valve. This shut off valve should be conveniently located within six (6) feet of the unit, and between the meter and unit. 7. Tighten all joints securely. 8.
PRODUCT DESIGN Propane is an excellent solvent, and special pipe dope must be used when assembling piping for this gas as it will quickly dissolve white lead or most standard commercial compounds. Shellac base compounds resistant to the actions of liquefied petroleum gases such as Gasolac, Stalactic, Clyde's or John Crane are satisfactory. Refer to Figure 2 for typical propane gas installations. TYPICAL PROPANE PIPING 5 to 15 PSIG (20 PSIG Max.) First Stage Regulator 200 PSIG Maximum Continuous 11" W.C.
SYSTEM OPERATION COOLING HEATING - Heat Pump Models The refrigerant used in the system is R-22. It is clear, colorless, non-toxic, non-irritating, and non-explosive liquid. The chemical formula is CHCLF2. The boiling point, at atmospheric pressure is -41.4°F. The heating portion of the refrigeration cycle is similar to the cooling cycle. The reversing valve reverses the flow of the refrigerant. The indoor coil now becomes the condenser coil and the outdoor coil becomes the evaporator coil.
SYSTEM OPERATION Typical Package Cooling or Package Gas Indoor Coil Outdoor Coil Thermostatic Expansion Valve Either a thermostatic expansion valve or restrictor orifice assy may be used depending on model, refer to the parts catalog for the model being serviced. Expansion Valve/Check Valve Assy in Cooling Operation Chatleff Orifice Assy Expansion Valve/Check Valve Assy in Heating Operation Most expansion valves used in current Amana Heat Pump products use an internally checked expansion valve.
SYSTEM OPERATION Typical Heat Pump System in Cooling Reversing Valve (Energized) Indoor Coil Outdoor Coil Accumulator Expanision device may not be as shown. Refer to product parts manual for actual part description. Thermostatic Expansion Valve Check Valve Typical Heat Pump System in Heating Reversing Valve (De-Energized) Indoor Coil Outdoor Coil Accumulator Expanision device may not be as shown. Refer to product parts manual for actual part description.
SYSTEM OPERATION DEFROST CYCLE Package Heat Pumps The defrosting of the outdoor coil is jointly controlled by the defrost control board, defrost (30/60) control and compressor run time. Solid State Timer The defrost timer board can be connected for one of three (3) time intervals. 30 minutes, 60 minutes, and 90 minutes (Factory connected @ 60 min.). Package heat pumps manufactured after May 1999 (9905 Serial date code) will be factory set @ 30 min.
SYSTEM OPERATION The pressure tap has a predetermined orifice size for reading static pressures. The induced draft blower motor assembly is mounted to the collector box. When the motor is in operation, a negative pressure will be created on the pressure tap, collector box and heat exchanger flue passages. A pressure control using a single pole, single throw electrical switch is used as a safety device in case of a blocked flue. OFF ON The figure 9 illustrates the pressure control in an off position.
SYSTEM OPERATION ELECTRIC HEATERS Optional electric heaters may be added, in the quantities shown in the specifications section to provide electric resistance heating. Under no condition shall more heaters than the quantity shown be installed. The low voltage circuit in the blower section is factory wired and terminates at the location provided for the electric heater(s). A minimum of field wiring is required to complete the installation.
SCHEDULED MAINTENANCE The owner should be made aware of the fact, that, as with any mechanical equipment the remote air conditioner requires regularly scheduled maintenance to preserve high performance standards, prolong the service life of the equipment, and lessen the chances of costly failure.
SERVICING To find the BTU input, multiply the number of cubic feet of gas consumed per hour by the heating value of the gas being used. (The calorific value of the gas being used is found by contacting your local utility.) Example: It is found by the gas meter, that it takes forty (40) seconds for the hand on the cubic foot dial to make one complete revolution, with all appliances off, except the furnace. Take this information and locate it on the gas rate chart.
SERVICING 1 0 9 2 8 3 7 7 4 6 5 1 Million Quarter 1 1 9 8 2 9 9 2 3 3 6 5 4 100 Thousand 4 5 1 8 2 7 7 3 8 6 6 5 4 1 Thousand 10 Thousand CUBIC FEET One Foot Foot 0 GAS RATE -- CUBIC FEET PER HOUR 24 Seconds for One Revolution 1/4 cu/ft 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 90 82 75 69 64 60 56 53 50 47 45 43 41 39 37 36 34 33 32 31 30 -28 -26 -- Size of Test Dial 1/2 1 2 cu/ft cu/ft cu/ft 5 cu/ft Seconds for One Revolu
SERVICING COOLING OR HEAT PUMP - SERVICE ANALYSIS GUIDE Power Failure Blown Fuse Loose Connection Shorted or Broken W ires O pen O verload Faulty T hermostat Faulty T ransformer Shorted or O pen Capacitor Shorted or G rounded Compressor Compressor Stuck Faulty Compressor Contactor Faulty Fan Relay O pen Control Circuit Low Voltage Faulty Evap.
SERVICING GAS HEATING - SERVICE ANALYSIS GUIDE Power Failure Blown Fuse Loose Connection Shorted or Broken Wires No Low Voltage Faulty Thermostat Faulty Transformer Poor or High Resistance Ground Faulty Limit or Roll Out Switch Faulty Flame Sensor Faulty Ignition Control Gas Valve or Gas Supply Shut Off Faulty Induced Draft Blower Broken or Shorted Ignitor Faulty Combustion Relay Dirty Flame Sensor, Low uA Flame Sensor not in Flame, Low uA Faulty Gas Valve Open Auxillary Limit Improper Air Flow or Distrib
SERVICING Three phase units require a balanced 3 phase power supply to operate. If the percentage of voltage imbalance exceeds 3% the unit must not be operated until the voltage condition is corrected. S-1 CHECKING VOLTAGE WARNING Disconnect Electrical Power Supply: Max. Voltage Deviation From Average Voltage X 100 Average Voltage 1. Remove doors, control panel cover, etc. from unit being tested.
SERVICING S-2 CHECKING WIRING WARNING Disconnect Electrical Power Supply: 1. Check wiring visually for signs of overheating, damaged insulation and loose connections. 2. Use an ohmmeter to check continuity of any suspected open wires. 3. If any wires must be replaced, replace with comparable gauge and insulation thickness. S-3 CHECKING THERMOSTAT, WIRING, AND ANTICIPATOR S-3A Thermostat and Wiring WARNING LINE VOLTAGE NOW PRESENT With power ON and thermostat calling for cooling. 1.
SERVICING S-7 CHECKING CONTACTOR AND/OR RELAYS S-15 CHECKING CAPACITOR The compressor contactor and other relay holding coils are wired into the low or line voltage circuits. When the control circuit is energized the coil pulls in the normally open contacts or opens the normally closed contacts. When the coil is de-energized, springs return the contacts to their normal position. 1. Remove the leads from the holding coil.
SERVICING RELAY, START A potential or voltage type relay is used to take the start capacitor out of the circuit once the motor comes up to speed. This type of relay is position sensitive. The normally closed contacts are wired in series with the start capacitor and the relay holding coil is wired parallel with the start winding. As the motor starts and comes up to speed, the increase in voltage across the start winding will energize the start relay holding coil and open the contacts to the start capacitor.
SERVICING If the compressor terminal PROTECTIVE COVER and gasket (if required) is not properly in place and secured, there is a remote possibility if a terminal vents, that the vaporous and liquid discharge can be ignited, spouting flames several feet, causing potentially severe or fatal injury to anyone in its path. This discharge can be ignited external to the compressor if the terminal cover is not properly in place and if the discharge impinges on a sufficient heat source.
SERVICING 2. Identify the leads and using a Megger, Hi-Potential Ground Tester, or other suitable instrument which puts out a voltage between 300 and 1500 volts, check for a ground separately between each of the three leads and ground (such as an unpainted tube on the compressor). Do not use a low voltage output instrument such as a volt-ohmmeter. 3. If a ground is indicated, then carefully remove the compressor terminal protective cover and inspect for loose leads or insulation breaks in the lead wires. 4.
SERVICING If the valve fails to change its position, test the voltage (24V) at the valve coil terminals, while the system is on the COOLING cycle. This control has a self diagnostic feature. Before performing any test observe the LED indicators and compare to the chart below for board status. If no voltage is registered at the coil terminals, check the operation of the reversing relay and the continuity of the connecting wires.
SERVICING NOTE: If the board is powered up with the jumper connected to the test pins, the board will ignore test and default to 90 minute time. If the jumper is left on the test connection for more than ten minutes, the board will ignore test jumper and default to 90 minute time. If jumper is missing, the board will default to 90 minute time. 6. Whenever the (CC) compressor contactor is energized, the solid state timer counts the compressor run time.
SERVICING S-53 OUTDOOR TEMPERATURE CONTROL (OPTIONAL ITEM) ATK01 This kit includes an ambient thermostat mounted in a weatherproof box for installation exterior to the unit. This kit is used for ambient control on all Amana package models and remote cooling models. WARNING Disconnect Electrical Power Supply: At any time the system has been open for repair, a liquid line filter dryer must be installed. The dryer should be installed between the partition panel and the expansion device.
SERVICING The equipment required to thoroughly evacuate the system is a high vacuum pump, capable of producing a vacuum equivalent to 25 microns absolute and a thermocouple vacuum gauge to give a true reading of the vacuum in the system. 4. If the vacuum pump is working properly, close the valve to the vacuum thermocouple gauge and open the high and low side valves to the high vacuum manifold set. With the valve on the charging cylinder closed, open the manifold valve to the cylinder.
SERVICING Units having capillary tubes or flow control restrictors can be checked against the Desired Superheat vs. Outdoor Temperature Chart in this section. Coils with thermostatic expansion valves (TXV's) must be checked by subcooling. See "Checking Subcooling and Superheat" sections in this manual. If a restriction is located, replace the restricted part, replace drier, evacuate and recharge.
SERVICING 4. Convert the suction pressure gauge reading to temperature by finding the gauge reading in Temperature - Pressure Chart and reading to the left, find the temperature in the °F. Column. 5. The difference between the thermometer reading and pressure to temperature conversion is the amount of superheat. EXAMPLE: a.
SERVICING EXAMPLE: a. Discharge Pressure = 260 The difference is 11° subcooling. The normal subcooling range is 9° - 13° subcooling for heat pumps units, 14° - 18° for cooling units and gas packs. b. Corresponding Temp. °F. = 120° c. Thermometer on Liquid line = 109°F. To obtain the amount of subcooling subtract 109°F from 120°F. TEMPERATURE - PRESSURE (R-22) Temp. °F. Gauge Pressure (PSIG) Freon-22 Temp. °F.
SERVICING CHECKING EQUALIZATION TIME During the "OFF" cycle, the high side pressure bleeds to the low side through the fixed orifice restriction device. Check equalization time as follows: 1. Attach a gauge manifold to the suction and liquid line dill valves. 2. Start the system and allow the pressures to stabilize. S-114 NON-CONDENSABLES If non-condensables are suspected shut down the system and allow the pressures to equalize, wait at least 15 minutes.
SERVICING 4. Install new components including liquid liner drier. 5. Install suction line drier. 6. Braze all joints, leak test, evacuate, and recharge system. 7. Start up the unit and record the pressure drop across the cleanup drier. 8. Continue to run the system for a minimum of twelve (12) hours and recheck the pressure drop across the drier. Pressure drop should not exceed 6 - 8 PSIG. 9. Continue to run the system for several days repeatedly checking pressure drop across the suction line drier.
SERVICING If motor does not respond as noted, ECM control unit is bad and should be replaced. WARNING LINE VOLTAGE NOW PRESENT Check for line voltage on terminals 4 and 5. Verify terminal 3 is ground. Terminals 1 and 2 should be connected only if motor is operating on 120 Volts.
SERVICING 1. You must have the correct replacement module. The controls are factory programmed for specific operating modes. Even though they look alike, different modules may have completely different functionality. Using the wrong control module voids all product warranties and may produce unexpected results. 2. Remove all power from the unit being serviced. Do not work on the motor with power applied. Wait at least 5 minutes after disconnecting power from the equipment before opening the motor. 3.
SERVICING 4. If limit test open allow unit to cool and retest. S-302 CHECKING FLAME ROLLOUT SWITCH 5. If still open, replace the control. Package Gas Units with serial numbers beginning 9001 and later use a temperature activated manual reset control mounted to the manifold assembly. S-301 TESTING AUXILIARY LIMIT CONTROL This control is preset nonadjustable control mounted in the blower compartment area. It is connected in series with the limit control wiring to the ignition control.
SERVICING 3. Reset the roll-out control. 4. Turn power on and put the unit into a call for heating. 5. The control checks the signal from the flame sensor. Gas flow will continue only if a proper signal is present. As soon as pilot flame is proven, the ignitor is de-energized. 6. The unit will continue to fire for 30 seconds. The fan control will then start the main circulating air blower. CAUTION Assume flame roll-out could occur. Keep face and hands a safe distance from burner area. 7.
SERVICING MATES WITH HONEYWELL Q3450* PILOT HARNESS PRESSURE REGULATOR ADJUSTMENT (UNDER CAP SCREW) 10. Ignitor warn up is 5 Seconds. Amp draw to ignitor is 1 to 1.5 amps at 24 VAC. Use an Amprobe to verify current. 11. Using a microamp meter verify flame sense. Microamp readings should be 0.3 microamps or greater. 2 ON OFF IN CONT ROL IGNITOR A-A PSI OUTLET PRESSURE TAP 1/8 N.P.T., PLUGGED (STEEL) MATES WITH SOCKET HOUSING CONTROL MODULE MATES WITH HONEYWELL Q3450* PILOT HARNESS 12.
SERVICING Proper ignition, combustion, and extinction are primarily due to burner design, orifice sizing, gas pressure, primary and secondary air, vent and proper seating of burners. Orifices should be treated with care in order to prevent damage. They should be removed and installed with a box-end wrench in order to prevent distortion. In no instance should an orifice be peened over and redrilled.
SERVICING Gas Valve Control ON/Off Switch INLET Open to Atmosphere WR O F F M 1 P 3 C 2 ON Inlet Pressure Tap (Side of Valve) Manometer Hose OUTLET Outlet (Manifold)Pressure Tap (Side of Valve) Pressure Regulator Adjustment (Under Cap Screw) Manometer MEASURING MANIFOLD GAS PRESSURE With Power ON: WARNING LINE VOLTAGE NOW PRESENT. 3. Put furnace into heating cycle and turn on all other gas consuming appliances. For NATURAL GAS: a. Inlet pressure should be a nominal 7" w.c. b.
SERVICING If switch reads as noted proceed to Step 3, otherwise replace control. 3. Remove the pressure control hose from the control and interconnect with an inclined manometer as shown: HOSE TO J-TUBE S-312 CHECKING HOT SURFACE IGNITER "Smart Valve" systems use a silicone carbide restrictive element ignitor is used for ignition. The normal operating temperature is approximately 2550°F. "DSI" systems use a spark type igniter.
SERVICING Honeywell Smart Valve Sequence of Operation SV9500 Start Power to System Board checks limit circuit Limit(s) open Limits closed Control board applies power to Air circulating blower (ACB) cooling speed. Pilot and Igniter are locked out. Thermostat calls for heat Self Check "Smart Valve" checks Igniter circuit and valve Ignition Igniter Missing or Broken System shuts down.. Igniter and gas valve check OK "Smart Valve" powers Igniter, opens pilot valve.
SERVICING Honeywell Smart Valve Sequence of Operation SV9501 Start Power to System Control board applies power to Air circulating blower (ACB) cooling speed. Pilot and Igniter are locked out. Limit(s) open Board checks limit circuit Limits closed Five minute retry delay Thermostat calls for heat Self Check Flame signal detected Yes No Pilot valve and Igniter remain closed.
Start Check PROCEDURE Turn gas supply off. Set thermostat to call for heat. Check line voltage Measure voltage @ L1, L2, & GR. NO Correct line voltage Check Voltage @ transformer Measure voltage @ Control board GY-25 & R-1 NO Correct low voltage Check thermostat & wiring Measure voltage @ Control board terminals "W" to C 19.5 Min. 27.5 Max. NO Repair/replace thermostat/thermostat wiring Check primary, Aux. & roll out limits Measure voltage @ Control board molex plug "OR-49 to BR-21.
NO Verify that pilot is positioned in front of the burner carry-over NO Correct pilot position Check gas valve Verify that pilot adjustment on gas valve open and adjusted correctly NO Open or adjust gas valve pilot Check flame proving circuits and gas valve Verify unit is properly grounded? NO correct unit grounding NO Repair or clean pilot mounting or transformer grounding. NO Replace Smart Valve. Reuse ignitor/flame sensor assembly NO Repair/Replace harness or gas valve.
SERVICING Testing Honeywell Smart Valve Systems The ignition control module is a combination electronic and electromechanical device and is not field repairable. Complete unit must be replaced. With Power ON: 3. The control energizes the spark igniter and gas valve for 7 seconds. If flame is established, the control goes into a 30 second heat on delay. 4. The indoor blower is energized at the heat speed after a 30 second on delay. 5.
SERVICING S-314 CHECKING FLAME SENSOR A flame sensing device is used in conjunction with the ignition control module to prove combustion. If a microamp signal is not present the control will de-energize the gas valve and "retry" for ignition or lockout. The drawing right illustrates, the approximate distances for the pilot assembly to the gas inshot burner. You will note they are not in the main burner stream, but along the carry over ports.
SERVICING DSI Direct Spark Ignition Systems WARNING Disconnect Electrical Power Supply: 1. Disconnect the flame sensor wire from terminal FS of the ignition control module. 2. Connect a microamp meter in series with this wire and terminal FS. 3. Be sure the negative side of the meter is to the wire and the positive of the meter is to terminal FS. With Power ON: WARNING LINE VOLTAGE NOW PRESENT. 4. Place the unit into a heating cycle. 5.
WIRING DIAGRAMS E 2 W2 5 C ATK OFF W AUTO 19 - 21 R SEQ 1 O DF W DT COOL 6 Y Y 7 AUTO 8 ON G G 9 R R C C PS1 B DEFROST CONTROL 12 PS B PS2 COOLING RELAY A 28 34 30 TEST PHB/PHD using ATK to control 2nd stage (3rd,4th bank) of electric heat. 11 Pressure Switches not used on all models.
WIRING DIAGRAMS E 2 W2 5 OFF O HEAT 19 - 21 R SEQ 1 O DF W DT COOL 6 Y Y 7 AUTO 8 ON G G 9 R R C C PS1 B DEFROST CONTROL PS B PS2 COOLING RELAY A 28 34 30 TEST PHB/PHD using ATK to control "W2" thermostat input. 11 Pressure Switches not used on all models.
WIRING DIAGRAMS O HEAT O 19 - 21 R SEQ 1 O DF W FSK Y Y 7 AUTO 8 ON 9 G G R R C C HEATER 6 A Pressure Switches not used on all models. B DEFROST CONTROL B PS2 A PS COOLING RELAY 28 34 30 TEST PHB/PHD with FSK controling "Y" thermostat input.
R Y G C BR BR RD YL GY BU THERMOSTAT W 1 8 5 2 9 6 3 RD 4 BU 7 GY W1 W2 O 0R 5KW R Y G C BR BR RD YL GY BU THERMOSTAT W 1 8 5 2 9 6 3 RD 4 BU 7 GY W1 O W2 0R 10KW THERMOSTAT R Y G C BR BR RD YL GY BU 1 8 5 2 9 6 3 RD 4 BU 7 GY W 0R W1 W2 O 15KW THERMOSTAT W R Y G C BR BR RD YL GY BU W2 O 1 8 5 2 9 6 3 RD 4 BU 7 GY W1 0R 20KW BR YL YL YL BR BR BR YL WIRING DIAGRAMS 60 VT VT VT BK BK BK
