Daikin VAM 350GJVE Service Manual page 34

Si71-502
1.2.3 Cold Area Mode
Stops or lowers ventilation airflow during defrosting operation and compressor non-operating condition
when equipment in heating mode, thus reducing heating load and cold air draft.
Operation chart (in heating operation only)
Note: Cold area mode can set using remote controller for air conditioner or field setting mode of LCD remoter
controller of heat reclaim ventilation unit.
Protection Control
Operation Control in Cold Climates
To operate the unit at low outdoor temperatures, control the air supply fans and the exhaust fans as shown
below for equipment protection.
1.2.4 Air Conditioner Link Operation
Link system enables simultaneous ON/OFF operation of heat reclaim ventilation unit and air conditioner
(VRV system, Skyair).
1) 1 group link control
Control Functions
ON/OFF
Fan motor
Ventilation fan motor
Damper motor
(ventilation mode)
Operation lamp
Models applicable to outdoor
temperatures of -15˚C at minimum
Allows simultaneous ON/OFF from remote controller for air conditioner.
Allows independent operation of heat reclaim ventilation unit from VRV-system remote controller during
interim periods (not possible when direct duct connection is used).
Normal ventilation
Operation
mode selection
Operation
ON
ON OFF ON
Total heat
ON
Normal
exchange
ventilation
ventilation
Lamp
ON
Normal operation
Outdoor temperature<-10°C
ON for 45 min., OFF for 15 min.
Outdoor temperature<-15°C
Air supply fan stop (*)
Exhaust fan stop (*)
VRV system
Remote
controller for
air conditioner
Control Functions
Defrosting operation
or compressor in
Non-defrosting operation or
non-operation
compressor in operation
OFF
10 sec
OFF
OFF or lower
Total heat
ON
exchange
ventilation
Normal ventilation
Outdoor temperature>-8°C
Air supply fan
Outdoor temperature>-13°C
(HL024)
ON
(HL023)
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