Lifebreath 94-EXCHANGER Benutzerhandbuch
7
Remote Control Connections
Electrical connections should be made by a qualified ser-
vice technician. Low voltage wires from the remote
controls are connected to the damper motor terminals.
Identify the appropriate installation type and connect as
per illustration.
In order to pre
vent electric shock when c
leaning
or servicing the HR
V , it is e
xtremely impor
tant to
confirm the polarity of the power line that is
switc
hed by
the safety (disconnect) s
witch.
The
hot line (blac
k) is the proper line to be s
witched.
To
confirm the proper polarity
, use a v
oltmeter
or test lamp to ensure there is no power after
the switc
h when the door is open. Chec
k
between that point and ground (on the cabinet).
Alwa
ys make sure that the HRV is pr
operly
grounded.
WARNING
Electrical - Model 94-EXCHANGER-MD ONL Y
OPTIONAL
TRANSFORMER
120 VAC
24 VAC
OPTIONAL
TRANSFORMER
120 VAC
OPTIONAL
TRANSFORMER
120 VAC
OPTIONAL RELAY (SPST)
OPTIONAL RELAY (SPST)
On older thermostats, ener
gizing the R and G
terminals at the fo
rced air system has the eff
ect
of energizing the
Y terminal at the thermostat
and thereby activ
ating the cooling system. If y
ou
identify this type of thermostat, y
ou must use
option 3.
WARNING