York S1-33101975102 installation instructions Repair Part Kit Installation Instructions, Unitary

REPAIR PART KIT INSTALLATION INSTRUCTIONS

REPLACEMENT DEMAND DEFROST CONTROL BOARD – S1-33101975102

FOR USE WITH MODELS: 12, 13 & 14 SEER HEAT PUMPS

INSTALLATION

1.Power off unit totally - 240V & 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 & 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 & 24V.

HEATER LIMIT SWITCH	CONTACTOR
(Not on all Units)
	DEFROST
START RELAY	CONTROL
(Not on all Units)	BOARD

DUAL

RUN/FAN

CAPACITOR

START
CAPACITOR		LOW
(Not on all Units)
		VOLTAGE
		BOX
GROUND	REVERSIBLE HIGH	“FINGERED”
LUG		BUSHING
	VOLTAGE CONDUIT PLATE

DEMAND DEFROST CURVE SELECTION JUMPER

X/L R C Y O W W1/66

PTEST

1

2

3

4

X/L

R

C

Y

O

W

W1/66

REV PRESSURE

VALVE SWITCH M

COIL COIL G AMBG AMBIENT

HIGH	COND
VOLTAGE	FAN

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 calls are de-ener- gized or power (24 VAC) to the control is cycled.

TABLE 1: Defrost Initiate Curves

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	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.	035-21270-001-A-0906
Copyright © by York International Corp. 2006. All rights reserved.	Supersedes: Nothing

Unitary	5005	Norman
Product	York	OK
Group	Drive	73069