Installa On Of Temperature Controller - Rinnai RUR98i Installation And Operation Manual

Installati n of Temperature Controller
WARNING
Turn the power off. Do not atte pt to connect the
temperature controller(s) with the power on.
Although the controller is a low voltage device, there
is 120 volt potenti l next to the temperature
controller connecti ns inside the unit.
Do not connect the temperature controller to the
120VAC terminals provided for the optional olenoid
drain valves.
Controller Loca on
The controller should be out of reach of small

children.
Avoid loca ons where the controller may become

hot (near an oven or radiant heater).
Avoid loca ons in direct sunlight. The digital

display may be di cult to read in direct sunlight.
Avoid loca ons where the temperature controller

could be splashed with liquids.
Do not install in loca ons where the controller

can be adjusted by the public.
Cable Lengths and Sizes
The cable for the temperature 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.
Number of Wired Controllers
MC-195T Only
MC-195T, MC91-2
MC-195T, MC91-2, MC91-2
MC-195T, MC91-2, MC91-2, MC-91-2
Total Max.
Cable Length
82 (25 m)
164 (50 m)
164 (50 m)
164 (50 m)
KBP Series Manual
Downloaded from http://GadgetsGo.com Rinnai Authorized Dealer
Config ration
A maximum of 4 temperature controllers 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.
MC-195T Maximum 4 Controllers
Rinnai
Water
Heater
Wire controllers in parallel
The 4 temperature controllers can consist of one
MC-195T-US and no more than three MC-91-2
controllers.
MC-91-1 should not be installed on a unit that already
has an MC-91-2 connected.
Maximum 3 MC-91-2
49