Remote Control Panel & Wiring - Greenheck HRE-20 Installation, operationand Maintenance Manual

OPTIONAL ACCESSORIES
Remote Control Panel and Wiring Schematics
The remote panel is a series of junction boxes ganged
together and includes a stainless steel face plate . The
remote panel is available with a number of different alarm
lights and switches to control the unit . The remote panel
ships loose and requires mounting and wiring in the field .
The remote panel is available with the following options:
• Unit on/off switch
• Unit on/off light
• 7-day time clock
• Hand/off/auto switch
• Time delay override
• Exhaust air dirty filter light
• Outdoor air dirty filter light
• Economizer light
• Frost control light
• Wheel rotation sensor light
Refer to Electrical Connections section for Field Control Wiring recommendations.
7-Day Timer or On/Off Switch
Timer
Override
For 7-Day Timer, use blue and black wires .
Red wires should be capped off .
Hand/Off/Auto Switch
Hand/Off/Auto Switch allows the unit to
"Off" - off
"On" - Manual Operation
"Auto" - Unit is controlled by BMS, RTU, etc .
NOTE: RTU controllers are by others.
7-Day Timer
S1 - Unit On/Off
On
Off
BMS
Auto
R
Terminal Block
in
C
Unit Control
Center
G
R
Terminal Block
in
C
Unit Control
G
Center
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