* Models prior to 1992 with sensing elbow near positive
discharge
of housing must order PS1301 Positive Pressure Switch.
** Only used for HS-3 models prior to the UC1 change over date
9/02.
HS4 (Includes UC1
Control) / HS-4 (Discontinued)
Includes UC1
(Date Codes Starting 07/02)
Prior to UC1
Part Number
Description
950-0131
1/3 H.P. Motor Kit
950-1013
Wheel Kit
950-0010
HS4 Shaft Extension
950-1007
Fan Prover Kit
950-1047
HS4 Housing Sensing Tube
950-1008
Housing
950-8804
UC1 Circuit Board (SINCE 9/02)
950-1040
* Isolation or Motor Relay
* Only used for HS-4 models prior to the UC1 change over date
9/02 .
