Test Run - Daikin VAM-FA Technical Data Manual

14 Optional accessories
14 - 3 BRP4A50: Heater control kit
Installation example
Return Air
Supply Air
Adapter
BRP4A50
Temperature thermostat (Field supply)
(Heater OFF when the temperature is at or more than 5
Wiring
NFB2
Power
supply
for
electric
heater
Temperature thermo.
(ON when the temperature is at or below –10
Symbol
52H Relay
EH Electric heater (Bimetal switch, Temperature fuse, Thermal cut out etc. (built in)
TH3 Temperature thermostat (ON when the temperature is at or below –10°C)
TH4 Temperature thermostat (OFF when the temperature is at or more than 5°C)
Note:
Make sure to install TH3 and TH4 for safety.

Test run

After completing the installation of the system, check again to make sure that no error was made in wiring or switch setting on the printed circuit
boards of the HRV units.
Then, turn on the power of the HRV units. Refer to the manual of the remote control of each unit (remote control for air conditioner, central control unit,
etc.) for conducting a trial operation.
• Heat reclaim ventilation • VAM-FA/FB
HRV
Electric heater (EH)
Thermal cut out (150
52H
52H
TH3 TH4
Temperature thermo.
°
C) (OFF when the temperature is at or more than 5
Part
• Ventilation • Heat reclaim ventilation
Exhaust Air
Outdoor Air
Preheater
(Field supply)
Temperature thermostat (Field supply)
(Heater ON when the temperature is at or below –10
°
C)
Power supply (Field supply)
Relay box
°
C)
Bimetal Temperature
°
switch
fuse (120 C)
°
(85 C)
Preheater
X9A
X10A
BRP4A50
(Option)
(printed circuit board
°
C)
Install a relay box at site
Duct
Duct (front of EH)
Duct (behind EH)
(HC0223)
Power
supply
for HRV units
L N
HRV
(HC0224)
Installation Place
Field supply
Field supply
Field supply
Field supply
3
1
14
°
C)
59