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

Page 8

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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.