Daikin VAM Series Engineering Data page 55

EDMMT712101
BRP4A50A: Heater Control Kit
Operation range of the Heat Reclaim Ventilator (VAM series) is " –15°C to 50°CDB 80% RH or below."
When operating the Heat Reclaim Ventilator (VAM series) at or below –10°C of the outdoor air temperature, use preheater (field
supplied) to preheat outdoor air.
This kit is required for preheater to ON / OFF delay control. (Initial setting is required.)
Cautions

For electric heater, safety devices and installation location, follow the standards or regulations of each country.

Use nonflammable duct for the electric heater. Be sure to keep 2 m or more between the heater and Heat Reclaim Ventilator
(VAM series) for safety.

For the Heat Reclaim Ventilator (VAM series), use a different power supply from that of the electric heater and install a circuit
breaker for each.
Electric heater capacity formula
Heat capacity P (kW) = 0.29 Airflow rate Temp. / 860
For VAM500HVE/HVLT when Airflow rate = 500 m
–20°C to –10°C (Temp. = 10°C)
P = (0.29 500 10) / 860 = 1.68 (kW)
Check the temperature rise at low notch.
For 2kW heater, when 300 m
T = (860  P) / (0.29  Airflow rate)
= (860  2) / (0.29 300) = 19.7°C
Therefore – 20 + 19.7 = –0.3°C
Cautions at initial setting

Make sure to set remote controller of Heat Reclaim Ventilator (VAM series) at initial setting as follows :
(for ON / OFF delay)
Heater control kit setting
Heat Reclaim Ventilator
(VAM series)

Heater operating condition
Heater starts operation when it is judged as Heating operation.
(Judged from VRV signal of heating operation or Heat Reclaim Ventilator (VAM series) signal of thermostat.)

ON / OFF delay
Heater starts 10 seconds after Heat Reclaim Ventilator (VAM series) starts operation.
Fan stops 3 minutes later after Heat Reclaim Ventilator (VAM series) stops operation.
VAM-HVE/HVLT Series
3
/ h (Ultra-high) and preheater so that the outdoor temp. rise from
3
/ h
Mode No. Setting switch no.
19 (29) 8
FAN
EH
10 sec. delay
Setting position
03 or 04
ON
OFF
heat
cool
on
OFF
on
OFF
3 min. FAN delay
Control System
53