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Tjernlund 950-1067 Relay-Timer (Old Style) Kit 8504053 Rev 4 09/96 User Manual

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If you are replacing the Timer/Relay of a VP-2, WHK-2 or a VP-3, connect the control input voltage as shown in diagram “A”.

If you are replacing the Timer/Relay of an HST manufactured before August 1st 1992, or any GPAK-JT/GPAK-1T, connect the control
input voltage as shown in diagram “B”. NOTE: Terminal 4 of the Timer/Relay is Blue in the GPAK-T Series and Orange in the HST-Series.
Terminal 5 of the Timer/Relay is White/Brown in the HST-Series and Orange in the GPAK-T Series.

If you are replacing the Timer/Relay of an HST manufactured after August 1st 1992, or any HST120, connect the control input voltage as
shown in diagram “C”.

If you are adding the Timer/Relay to an existing Draft Inducer/Power Venter, connect the control input voltage as shown in diagram “D”.