Remote interface panel, Troubleshooting for temperature controller – Greenheck Temperature Control Package v2.0 (461468) User Manual
Page 8

If a Remote Interface Panel is ordered, it may be mounted in the
desired location in the building and connected to the controller in
the energy recovery unit by a telephone cable. The controller may
then be monitored and programmed from that location.
The face of the panel contains five buttons, but the face of the
panel may be flipped down to reveal more buttons.
Remote Interface Panel
IOM Temperature Control Pkg.
Rev. 1 November 2001
Copyright © 2001 Greenheck Fan Corp.
on/off
alarm
enter
on/off
alarm
enter
on/off
alarm
enter
on/off
alarm
enter
on/off
alarm
enter
set
prog.
prog.
on/off
alarm
enter
Turns the unit on and off
Signals that the unit is in freeze protection mode
Used to scroll through the screens and change
set points
Used to enter a screen to change set points and advance to the next set point
Return to the Status Screen (under the face of the panel)
set
Used to access the Time and Holiday Loop
on/off
alarm
enter
Used to access the Set Point loop (under the face of the panel)
Used to access the Unit Set-Up Loop
on/off
alarm
enter
Troubleshooting for Temperature Controller
Symptom
Possible Cause
Corrective Action
Unit not running
Unit is in unoccupied mode
Ensure date, time, and operational days are
set correctly.
Supply blower not running
External economizer functioning
Freeze protection functioning
Ensure economizer setting is correct.
Check for freeze alarm on the controller.
Check freeze protection set point.
Exhaust blower not running
Unit is in night setback mode
Check field mounted night setback switch or
timer for correct settings.
Energy wheel not running
External economizer functioning
Internal economizer functioning
Freeze protection functioning
Unit is in night setback mode
Ensure economizer mode setting is correct.
Check set point for internal economizer.
Check for alarm on the controller and the
freeze protection set point.
Check field mounted night setback switch or
timer for correct settings.