Greenheck ERCH - Page 17

General Description - NOT model specificEnergy Recovery Ventilator with Heating and Cooling
®
17
Optional Accessory Wiring Schematics
TERMINAL BLOCKS IN
UNIT CONTROL CENTER
BLUE
TIMER
BLACK
RED
(CAPPED)
R
12
7
6
W1
Y2
Y1
G
C
7-Day Timer
Remote Panel
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
• Dirty filter light
• Economizer light
• Frost control light
• Wheel rotation sensor light
NC
C
NO
NC
C
NO
SUPPLY DIRTY
FILTER SWITCH
EXHAUST DIRTY
FILTER SWITCH
DIRTY FILTER
HOT COMMON
24V
SEC
Dirty Filter Indicator
(powered by others)
UNIT ON/OFF
COOL STAGE 1/
ECONOMIZER
COOL STAGE 2
HEAT
UNOCCUPIED
RECIRCULATION
TERMINAL BLOCKS IN
UNIT CONTROL CENTER
S1
S6
S7
S4
S5
R
12
7
6
W1
Y2
Y1
G
C
A
Unit Interfacing Terminals
Heating/Cooling Switches & Night Setback
Switch/Timer
R
TERMINAL BLOCKS IN
UNIT CONTROL CENTER
NC
C
NO
NC
C
NO
SUPPLY DIRTY
FILTER SWITCH
EXHAUST DIRTY
FILTER SWITCH
OFF
ON
AUTO
* BMS, TIMECLOCK ,
TSTAT, RTU, ETC.
UNIT ON/OFF
FROST CONTROL
ECONOMIZER
WHEEL ROTATION
DIRTY FILTER
ON/OFF/AUTO SWITCH ALLOWS THREE MODES OF OPERATION
"ON" - UNIT IS TURNED ON MANUALLY
"OFF" - UNIT IS TURNED OFF MANUALLY
"AUTO" - UNIT IS CONTROLLED VIA SCHEDULER OF BMS, TIMECLOCK, TSAT, ETC.
*
12
7
6
W1
Y2
Y1
G
C
On/Off/Auto Switch & Indictor Light Wiring
Electrical Installation