Product/Technical
MS4PMUHVT
Issue Date
09/30/02
© 2002 Johnson Controls, Inc.
1
Part No. 24-8782-5, Rev. C
www.johnsoncontrols.com
Code No. LIT-125195
MS4PMUHVT Multi-Stage Electronic
Temperature Control with Relay Pack
The MS4PMUHVT Multi-Stage Electronic Temperature
Control is intended for multi-stage temperature control
applications. The MS4PMUHVT control is specifically
designed for the control of applications with up to
four stages in the following configurations:
four cooling stages with common setpoint
four heating stages with common setpoint
four stages with deadband (two heating stages
and two cooling stages with common setpoint)
two independent sets of two dependent stages
(two heating stages and two cooling stages with
independent setpoints)
Figure 1: MS4PMUHVT Multi-Stage Electronic
Temperature Control with Relay Pack
Features and Benefits
Single Package
Provides the functionality of multiple control
components at a cost-effective price.
Easily Readable Display
Displays main sensor or evaporator sensor
temperatures; Helps troubleshoot control,
Provides alarm codes.
Accurate, Interchangeable
Temperature Sensor
Provides accurate control performance with
up to 300 feet (91 m) of sensor wiring. (An
offset is provided for longer wiring.)
Nonvolatile Memory
Retains user-programmed settings in event of
power loss
Heavy-Duty Relays
Allow direct control of equipment; Reduce
installation time.
