Johnson Controls hl5, hc8, yzh, hl8, yze User Manual

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Johnson Controls hl5, hc8, yzh, hl8, yze User Manual

REPAIR PART INSTALLATION MANUAL

HEAT PUMP COMMUNICATING CONTROL REPAIR KIT (S1-33102957000)

MODELS YZB, YZE, YZH, HL5, HC5, HL8, HC8

FIGURE 1: Demand Defrost Control Module

GENERAL INFORMATION

The YorkGuard VI Demand Defrost control as a replacement part for prior versions of the YorkGuard control.

Following the detailed instructions for modifications of both the indoor and outdoor units is critical.

NOTE: For direct replacement of YorkGuard VI, replace the control only.

Service replacement kit consists of:

• YorkGuard “VI” Defrost Control.

CONTROL CONFIGURATION FOR ALL APPLICATIONS

Most jumper settings should be set to match jumpers on board being removed.

Remove control from packaging and configure the control as follows:

1.Specify the desired Low Temperature Cut Out (LTCO) using the jumper on the control.

2.Specify the desired Balance Point (BP) using the jumper on the control.

3.Specify appropriate defrost curve using the jumper on the control. See Table 1.

TABLE 1: Defrost Initiate Curves

Defrost Curve

 

 

 

 

 

Selection

1

 

2

3

4

Jumper Position

 

 

 

 

 

 

 

 

 

 

 

YZB/HC3B/HL3B

2 & 2.5 Ton

4

& 5 Ton

3 & 3.5 Ton

1.5 Ton

 

 

 

 

 

 

YZE/HC5B/HL5B

2 Ton

4

& 5 Ton

3 Ton

N/A

 

 

 

 

 

 

YZE03811

N/A

 

N/A

3 Ton

N/A

 

 

 

 

 

 

4.Verify that the Y2 LOCK jumper is set. This jumper is not applicable to a single stage compressor system.

5.Specify if the Heat Pump is installed with a fossil fuel furnace using the FFUEL jumper. The jumper should be ON for a fossil fuel furnace installation and OFF for an air handler installation.

6.Specify Switch Point jumper using the jumper on the control.

7.Verify that the HOT HEAT PUMP is set appropriately.

8.Specify compressor delay using jumper on the control. “ON” will shut-off compressor when entering and leaving defrost.

Johnson Controls Unitary Products

035-22286-001-A-0909

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