York W)036 THRU 060 Specifications download pdf (Page 58)

Subject to change without notice. Printed in U.S.A. 542300-YIM-A-1009

Johnson Controls Unitary Products

5005 York Drive

Norman, OK 73069

Fan On And Off Delays

The fan ON and OFF delays can be field adjusted by pressing a

combination of buttons on the UCB.

• Gas Heat Option #1 - Press the LAST ERROR and

TEST RESET buttons simultaneously and then release.

The control flashes three times as it writes a 30 second

delay ON and a 90 second delay OFF to the program.

• Gas Heat Option #2 - Press the COMM SETUP and

TEST RESET buttons simultaneously and then release.

The control flashes four times as it writes a 30 second

delay ON and a 180 second delay OFF to the program.

• Electric Heat - Press and release the COMM SETUP and

LAST ERROR buttons at the same time. The control

flashes twice on the LED as the control writes a 0 second

ON and a 30 second OFF fan delay to the control’s

program memory.

Table 25: Unit Control Board Flash Codes

Flash Code Description

On Steady Control Failure - Replace Control

Heart Beat Normal Operation

1 Flash Not Applicable

2 Flashes Control waiting ASCD

1. These flash codes do not represent alarms.

3 Flashes HPS1 - Compressor Lock out

5 Flashes LPS1 - Compressor Lock out

7 Flashes FS1 - Compressor Lock out

9 Flashes

Ignition Control Locked Out/

Ignition Control Failure / Limit Switch Trip / No

Jumper Plug in Heat Section

10 Flashes

Compressors Locked Out On Low

Outdoor Air Temperature

11 Flashes

Compressors Locked Out Because The

Economizer Is Using Free Cooling

13 Flashes Compressor Held Off Due To Low Voltage

14 Flashes EEPROM Storage Failure (Control Failure)

OFF No Power or Control Failure

Figure 30: Unit Control Board

Table 26: Ignition Control Board Flash Codes

Flash Code Description

Heart Beat Normal Operation

1 Flash Not Applicable

2 Flashes Pressure / Centrifugal Switch Open with Inducer On

3 Flashes

Pressure / Centrifugal Switch Closed with Inducer

Off

4 Flashes Not Applicable

5 Flashes Lock Out From Too Many Flame Losses

6 Flashes High Temperature Switch Open (Primary or Aux.)

7 Flashes Rollout Switch Open

8 Flashes Flame Present With Gas Off

9 Flashes Gas Valve Stuck Off or On

10 Flashes Flame Sense Circuit Failure

Comm Setup

Button

Last Error

Button

Test Reset

Button

ontrol Board

LED

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York W)036 THRU 060 Specifications Page 58

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