WaterFurnace AT022C/D, Installation And Maintenance Manual

Page 1: ...s received all items should be carefully checked against the bill of lading to be sure all crates and cartons have been received Examine units for shipping damage removing the units from the cartons i...

Page 2: ...ll allow the control box to be removed with only the two front mounting screws for future service SETTING HORIZONTAL UNITS CAUTION Do not use rods smaller than 3 8 diameter since they may not be stron...

Page 3: ...loosen a single nut The unit should be pitched approximately 1 4 towards the drain in both directions to facilitate the removal of condensate see Figure 5A on page 5 Use only the bolts provided in th...

Page 4: ...ead the female locking ring onto the pipe threads while maintaining the brass connector in the desired direction see Figure 4B Tighten the connectors by hand then gently snug the fitting with pliers t...

Page 5: ...ratures may be subject to freezing The water loop is usually maintained between 60 F and 90 F Premier 2 units allow 25 F 110 F EWT for proper heating and cooling operation This is accomplished with a...

Page 6: ...age 7 final purging and charging of the loop is required A WaterFurnace flush cart or a 1 5 HP pump minimum is needed to achieve adequate flow velocity in the loop to purge air and dirt particles from...

Page 7: ...the motor housing has been flooded Ensure that the loop flow center provides adequate flow through the unit by checking the pressure drop across the heat exchanger and comparing it to the figures sho...

Page 8: ...ne Premier AT or Spectra unit with optional circut board SL1 In SL1 Out Not Used Not Used Shut Down C C Premier 2 Unit 1 With pump wired to Unit 1 With pump wired to Unit 2 SL1 In SL1 Out Not Used Not...

Page 9: ...lies of more than four use an 80 gallon water heater or two 50 gallon water heaters con nected in a series as shown in Figure 13 Electric water heaters are recommended Steps 1 Turn off the power to th...

Page 10: ...temperature setting on the tank On tanks with both upper and lower elements the lower element should be turned down to the lowest setting approximately 100 F The upper element should be adjusted to 12...

Page 11: ...complished by using the DHW pump disable switch located on the front of the unit cabinet near the LED annunciator panel The red DHW OFF LED will illuminate indicating the DHW pump is disabled Do not r...

Page 12: ...and 3 of P3 See the wiring schematic on pages 13 16 for details 208 VOLT OPERATION All 208 230 volt units are factory wired for 230 volt operation For 208 volt operation the red and blue transformer...

Page 13: ...m Norm Fan Comp Loop Well Test Norm Outputs Norm Inputs Norm 2 Speed 1 Speed ECM2 Air Flow Settings Field Selection Factory Setup NO NC CR3 COM Wh Blk Red F1 10A 240V Black Compressor CC T2 T1 Cap R S...

Page 14: ...switch Legend Relay contacts N O N C Notes L1 L2 Single Disconnect Power 208 230 60 1 Aux Elect Power 208 230 60 1 L1 L2 L1 L2 AT Unit Power 208 230 60 1 CSA installed units only Local codes may requ...

Page 15: ...P Thermistor Loop 15 F well 30 F Lockout High Pressure 380 PSI Lockout Low Pressure 15 PSI Lockout ECM2 RPM 100 rpm Lockout Microprocessor Malfunction HWL Thermistor 130 F DHW Pump Switch Off Drain Wa...

Page 16: ...enable switch Thermal limit switch Legend Relay Contacts N O N C G T 1 3 2 P L1 PSC Fan Speed Relay PSC Fan Power Relay ER1 to ER4 Aux heat stage relays HWL Hot water limit sensor Premier2 Logic Board...

Page 17: ...to medium speed 15 seconds after Y1 input The hot water pump is cycled 30 seconds after the Y1 input Heating 2nd Stage Y1 Y2 The hot water pump is de energized which directs all heat to satisfying the...

Page 18: ...ly closed switch is opened for 30 continuous seconds Freeze Protection Water Flow This lockout mode occurs when the freeze thermistor temperature located between the TXV and coax is at or below the se...

Page 19: ...r 24 VAC thermostats FACTORY SETUP DIP SWITCHES SW3 A 5 position DIP switch package on the Premier 2 control allows the following factory setup options 1 Two Speed Single Speed This DIP switch configu...

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Page 22: ...1 1 1 1 019 4 0 2 1 2 0 2 0 1 9 1 8 5 0 3 5 3 3 3 2 3 1 3 0 3 0 1 5 1 4 1 3 1 3 1 3 022 4 5 3 2 3 1 3 0 2 9 2 8 6 0 6 0 5 8 5 6 5 4 5 2 4 0 1 2 1 2 1 1 1 1 1 1 028 5 5 2 1 2 0 2 0 1 9 1 8 7 0 3 2 3 1...

Page 23: ...scaling OTHER MAINTENANCE Filters Filters must be clean to obtain maximum performance They should be inspected monthly under normal operating conditions and be replaced when necessary Units should ne...

Page 24: ...ir and water flow rates are at proper levels before servicing the refrigerant circuit To maintain sealed circuit integrity do not install service gauges unless unit operation appears abnormal refer to...

Page 25: ...measurement with 2 voltage drop Wire size based on 60 C copper conductor With optional 1 hp ECM2 fan motor 208 230 60 3 All units rated 208 230 min 197 volt three phase 60 cycle All fuses type D time...

Page 26: ...26 PREMIER 2 SINGLE SPEED INSTALLATION AND MAINTENANCE MANUAL Notes...

Page 27: ...27 PREMIER 2 SINGLE SPEED INSTALLATION AND MAINTENANCE MANUAL...

Page 28: ...ions without notice WaterFurnace and Premier are registered trademarks of WaterFurnace International Inc 1999 WaterFurnace International Inc Single Speed Installation and Maintenance Manual 9000 Conse...