York S1-33101975102 User's Manual
Contents
1. REPAIR PART KIT INSTALLATION INSTRUCTIONS REPLACEMENT DEMAND DEFROST CONTROL BOARD S1 33101975102 FOR USE WITH MODELS 12 13 amp 14 SEER HEAT PUMPS INSTALLATION 1 Power off unit totally 240V amp 24V 2 Carefully record positions and colors of wiring removed 3 Remove old defrost circuit board 4 Install replacement circuit board utilizing same placement mounting amp screws 5 Refer to unit Installation Manual or Table 1 below and set the Demand Defrost Curve Selection Jumper to the proper position For the new jumper setting to take effect all 24V power to the board must be removed and reapplied 6 Complete the installation and power up the unit re apply ing both 240V amp 24V HEATER LIMIT SWITCH Not on all Units CONTACTOR DEFROST CONTROL BOARD START RELAY Not on all Units DUAL RUN FAN CAPACITOR START CAPACITOR Not on all Units LOW VOLTAGE BOX GROUND LUG FINGERED BUSHING REVERSIBLE HIGH VOLTAGE CONDUIT PLATE FIGURE 1 Outdoor Unit Control Box DEFROST CURVE SELECTION When the control board is replaced the jumper MUST be placed in a numbered position Select the proper jumper posi tion from Table1 If the jumper is missing or in the P posi tion the replacement control will not energize the compressor When the jumper position is changed the control will not act upon the jumper changes until the thermostat cal2. ls are de ener gized or power 24 VAC to the control is cycled TABLE 1 Defrost Initiate Curves TEST gt 0x0 o JoU DEMAND 7 DEFROST CURVE SELECTION JUMPER o PRESSURE VALVI SWITCH FIGURE 2 Demand Defrost Control Module The control will display the active defrost curve using the X L terminal when the heat pump is operating in a defrost cycle that has been forced using the TEST inputs For instance the X L output will be energized with two flashes when defrost curve 2 is active The control only reads the jumper input when the Y and W thermostat inputs are de energized Defrost Curve Selection f 1 2 3 4 Jumper Position 14 Seer 2 3 4 Ton 2 5 3 5 Ton None None All Other Models All None None None Subject to change without notice Printed in U S A Copyright by York International Corp 2006 All rights reserved Unitary 5005 Product York Group Drive 035 21270 001 A 0906 Supersedes Nothing Norman OK 73069
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