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Installer Quali cati ns
A licensed professional must install the appliance,
inspect it, and leak test it before use. The warranty
will be voided due to improper installa on.
The installer should have skills such as:
Gas sizing.
Connectin gas lines, water lines, valves, and
electricity.
Knowledge of applicable na onal, state, and
local codes.
Installing ven ng through a wall or roof.
Training in installa on of tankless water heaters.
(Training can be accessed on-line at
www.trainingevents.rinnai.us)
Type of installatio
For installa on in residen al and commercial
domestic hot water applications only. (The unit is
not permi ed for installa on in hydronic heati g
applica ons of any type.)
Certi d for installation in manufactured (mobile)
homes.
Installati n Steps
Prepare for Installa on ...................................... 5
Determine Installa on Loca on ......................... 6
Checklist to Determine Installa on Loca on ... 12
Mount to Wall .................................................. 12
Remove the Front Panel .................................. 12
Installa on of Venting (indoor models only) ... 13
Condensate (indoor models only) .................... 37
Checklist for Venting and Condensate
(indoor models only) ........................................ 37
Installa on of Plumbing ................................... 38
Checklist for Plumbing ..................................... 40
Installa on of Gas Supply ................................. 46
Connect Electricity ........................................... 47
Adjustment for High Altitude ........................... 48
Adjustment for Vent Length
(indoor models only) ........................................ 48
Checklist for Gas and Electricity ....................... 48
Installa on of Temperature Controller ............ 49
Final Checklist................................................... 50
4
Installati n Instruc ons
(for the licensed professional)
General Instructi ns
DO NOT
MUST DO
KBP Series Manual
Do not install the RUR98i outdoors.
Do not install the RUR98e indoors.
Do not electronically manifold (MSB/EZ connect)
mul ple units together.
Do not install the appliance in an area where water
leakage of the unit or connecti ns will result in
damage to the area adjacent to the appliance or to
lower floors of the structure. When such locati ns
cannot be avoided, it is recommended that a
suitable drain pan, adequately drained, be installed
under the appliance. The pan must not restrict
combusti n air flow.
Do not obstruct the ow of combusti n and
ven la on air. Combusti n air shall not be
supplied from occupied spaces.
Do not use this appliance in an applicati n such as
a pool or spa heater that uses chemically treated
water . (This appliance is suitable for filling large or
whirlpool spa tubs with potable water.)
Do not use substit te parts that are not authorized
for this appliance.
The installa on must conform with local codes or,
in the absence of local codes, with the Nati nal
Fuel Gas Code, ANSI Z223.1/NFPA 54, or the
Natural Gas and Propane Installati n Code, CSA
B149.1. If installed in a manufactured home, the
installa on must conform with the Manufactured
Home Construc on and Safety Standard, Title 24
CFR, Part 3280 and/or CAN/SCA Z240 MH Series,
Mobile Homes.
The appliance, when installed, must be electrically
grounded in accordance with local codes or, in the
absence of local codes, with the Nati nal Electrical
Code, ANSI/NFPA 70, or the Canadian Electrical
Code, CSA C22.1.
The appliance and its appliance main gas valve
must be disconnected from the gas supply piping
system during any pressure testi g of that system
at test pressures in excess of 1/2 psi (3.5 kPa)
(13.84 in W.C.).
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