Daikin VAM 150GJVE, Service Manual

Page: 34 / 112

Si71-502 Control Functions
Control Functions 25
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
„
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).
Operation
Normal ventilation
mode selection
Air conditioner
ON/OFF
Operation
Fan motor
Heat reclaim v
entilation unit
Ventilation fan motor
10 sec
Damper motor
(ventilation mode)
Total heat
exchange
ventilation
Normal
ventilation
Total heat
exchange
ventilation
Normal ventilation
ON
ON
OFF
ON ON ON OFF
ON
OFF
Remote controller indication
Operation lamp
Lamp
ON
(HL023)
Defrosting operation
or compressor in
non-operation
Non-defrosting operation or
compressor in operation
OFF or lower
Normal operation
Air supply fan
ON for 45 min., OFF for 15 min.
Outdoor temperature<-10
°
C Outdoor temperature>-8
°
C
Air supply fan stop (*)
Exhaust fan stop (*)
Outdoor temperature<-15
°
C Outdoor temperature>-13
°
C
Models applicable to outdoor
temperatures of -15˚C at minimum
VRV system
(HL024)
Remote
controller for
air conditioner