Daikin VAM 1000FAVE, Service Manual

Page: 31 / 84

Control Functions SiE71-202
22 Control Functions
1.2.2 Pre-cool/Pre-heat
Pre-cool/pre-heat operations require the following conditions.
1. System
Pre-heat operation is possible only in air conditioner linked system (1 group, 2-group link). Check the
system first.
2. Heat recovery ventilation setting
Set Preheat ON/OFF to ON.
Pre-cool/pre-heat On/OFF setting can be made in air conditioner or using field setting mode of LCD
remote controller of heat recovery ventilation unit. (Pre-cool time can be set between 30 and 60 min,
and pre-heat time can be set between 30 and 150 min.)
3. Others
a) Heat recovery ventilation unit must be in non-operating condition for two consecutive hours or more
prior to pre-cool/pre-heat operation.
b) Temperature control mode of the air conditioner must be set to Cool, Heat or Dry.
Note: Operation standby indication is displayed only on LCD remote controller of heat recovery ventilation unit.
Operation
Normal ventilation
mode selection
Pre-cool/pre-heat
time over
Stop
Air conditioner
ON/OFF
Operation
Heat reco
v
e
ry
v
entilation unit
Ventilation fan motor
Damper motor
(ventilation mode)
Pre-cool/pre-heat ventilation
ON
ON
Total heat exchange ventilation
Normal ventilation
Total heat
exchange
ventilation
Remote controller indication
Operation lamp
Lamp
ON
Lamp
ON
Operation standby
indication
(HL022)