Dantherm HRV 501 Serviceanleitung Seite 8

Components description,
Electronic control
Temperature
sensors
Safety switch
Electric heating
element
(accessory)
External humidistat
(accessory)
6
continued
Detailed description of the electronic controls on page 7 , and user guide page 15
Part Description
T1 Outdoor air temperature
T2 Supply air temperature
T3 Extract air temperature
T4 Exhaust air temperature
For safety reasons, the internal safety switch cuts off power supply when the units front
cover is removed. Remounting the front cover enables operation again.
Additional heat can be applied, if installing an electrical heat element (accessory list at
page 32) The heat element increases the supply air temperature, to compensate any
temperature drop over the heat exchanger in cold operation conditions.
Functionality described on in ventilation functionality at page 10
Electrical temperature set point described on page 18.
This unit features an external humidistat connection, for optional comfort enhance-
ment.
Place the humidistat in areas where humidity changes rapidly, e.g. bathrooms.
When air humidity is higher than set point, fan speed will increase to fan speed 4, until
humidity again is lower than set point, and the unit returns, to normal operation
T2
T3
Fig. 2
T1
T4