7
3.1.5
Smart Summer Bypass Manual Override
To manually override the Smart Summer Bypass Mode:
Factory set to AUTO
Options AUTO / MAN / OFF
Note:
Unit will return to “Auto Mode” at the end of the manual time out period.
Unit will not allow the Summer ByPass to be opened at temperature below 7ºC.
3.1.6
Ventilation Speed Control for ZGS2
The ZGS2 is a hard wired switch used to switch between Low and High speed
• Press the switch towards the (I) to activate the Low Speed
• Press the switch towards the (II) to activate the High Speed
3.1.7
Ventilation Speed Control for ZGS1
The ZGS1 is a hard wired switch used to switch between Low, AUX and High speed
• Press to switch to the 'center' position to activate the Low Speed
• Press the switch towards the (I) to activate the AUX Speed
• Press the switch towards the (II) to active the High Speed
Note: AUX Speed may be set anywhere between 15%-100% airflow capacity. For set-up status please
contact your installer for details.
3.1.8
Ventilation Speed Control and System Status for ZGRC1
The ZGRC1 is a hardwired controller used to switch between low and high speeds as well as provide system
status updates.
• Press control button to activate panel
• Scroll to “User Menu” option and press button to enter
• Scroll to “Summer Bypass” option and press button
• The current setting status will flash
• Rotate button to desired outcome
• Press to confirm
• Screen will time out after 30 seconds
Note:
• If "manual" option selected, the option will be available to
"OPEN" or "SHUT" the summer bypass
• Rotate button to desired outcome and press to confirm
• Rotate button to select period of time required (0-96 hours, in
6 hour increments, note: 0 will return unit to auto mode)
• Press to confirm
To change speed setting
• Press button to identify speed and system status
• Press button again to change speed
Note:
• Unit will automatically return to low speed.
See LCD Control on ComfoAir 155 WMe on page 8
for high speed time duration set up.
ZGRC1 System Status Alerts
• Status alerts are for indication only
• If Service / Maintenance is required please return to the
ComfoAir 155 WMe unit and follow guidelines in Section 4
Low Speed
High Speed
Summer
Bypass
is active
Frost
Protection
mode
is active
High Speed
actuated
automatically
by unit
Service /
Maintenance
alert
Speed
adjustment
button
S U M M E R
B Y P A S S
< M A N . >
