Loading ...
Loading ...
Loading ...
24
EE
EN
13.5. ERV (energy recovery ventilation)
Sequence of operation:
1. The ERV demand switch closes CNER
2. 12VDC is provided to CN2C to turn on ERV
3. If the unit goes into defrost, CN2C stops 12VDC output
ERV Switch:
Non-Voltage a-contact input
Contact rating voltage >= 15VDC
Contact rating current >= 0.1 A
Minimum applicable load <= 1mA at DC
ERV output
Function
Mode26
Condition Fan speed
CN2C output
(=Fan output)
CNER input
OFF -
Cool/Heat/Fan operation RC setting ON
Defrost STOP OFF
STOP STOP OFF
ON
"1"
1
Cool/Heat/Fan operation RC setting ON
Defrost STOP OFF
STOP STOP OFF
"2"
Cool/Heat/Fan operation RC setting ON
Defrost STOP OFF
STOP
RC setting
2, 3
ON
1
Factory setting.
2
When fan speed setting by RC is "Auto", Fan speed is fixed to "HIGH".
3
If ERV control is effective when STOP, IDU doesn’t report fan status or PB error (Fan motor error).
RC: Remote controller
ERV Control
max 30 ft.
Part Number: PAC-740
Loading ...
Loading ...
Loading ...