Rinnai REU-VA3237FFU - Manual (Page 35)

VA Series Indoor LS Manual 35
Remote Controller Installation
The controller should be out of reach of small
children.
Avoid locations where the controller may become
hot (near the oven or radiant heater).
Avoid locations in direct sunlight. The digital
display may be difficult to read in direct sunlight.
Avoid locations where the remote controller could
be splashed with liquids.
Do not install in locations where it can be adjusted
by the public.
Configurations
A maximum of 4 remote controllers, including wired
and wireless, can be installed for a water heater or
bank of water heaters. Controllers can only be wired
in parallel. Controllers cannot be wired in series.
The 4 remote controllers can consist of multiple MC-
91’s or MC-502RC’s but only 1 BC-100V and only 1
MC-100V.
Any one of the 5 types of controllers can be installed
by itself and still operate the water heater. All
functions will be available with the exception that the
clock function on the BC-100V will only be available if
an MC-100V is also connected.
If 4 MC-91’s are installed, simultaneously press the
Priority and On/Off buttons on the fourth controller
until a beep sounds.
The table to the right shows some of the possible
combinations of controllers.
Cable Lengths and Size
The cable for the remote controller should be a non-
polarized two-core cable with a minimum gauge of 22
AWG. The maximum cable length from each
controller to the water heater depends on the total
number of wired controllers connected to the water
heater.
MC-91 + MC-91 + MCC-91 MC-502RC
MC-91 + MCC-91 + MC-502RC MC-502RC
MCC-91 + MC-502RC + BC-100V MC-100V
MC-91 + MC-502RC + BC-100V MC-100V
MC-91 + MC-91 + MC-502RC BC-100V
MC-91 + MC-502RC + MC-502RC MC-100V
+
+
+
+
+
+
Number of Wired
Controllers
Maximum Cable Length for each
Controller to Water Heater
1 328 ft (100 m)
2 164 ft (50 m)
3 or 4 65 ft (20 m)
Location
Controllers
Wire controllers in parallel
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