Rinnai RL75I User Manual

4 VC Series Manual
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
 connecng gas lines, water lines, valves,
electricity,
 knowledge of applicable naonal, state, and
local codes.
 installing venng through a wall or roof
If you lack these skills contact a licensed professional.
Installaon Instrucons
Installaon 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 Venng (indoor models only) ... 13
Condensate (indoor models only) .................... 15
Checklist for Venng and Condensate
(indoor models only) ........................................ 15
Installaon of Plumbing ................................... 16
Checklist for Plumbing ..................................... 19
Installaon of Gas Supply ................................. 19
Connect Electricity ........................................... 21
Adjust for High Altude ................................... 21
Adjust for Vent Length (indoor models only) .. 21
Checklist for Gas and Electricity ....................... 21
Installaon of Temperature Controller ............ 22
Final Checklist................................................... 24
General Instrucons Installer Qualicaons
DO NOT
 Do not install the RL75i or the RL94i outdoors.
 Do not install the RL75e or the RL94e indoors.
 Do not install the appliance in an area where water
leakage of the unit or connecons will result in
damage to the area adjacent to the appliance or to
lower oors of the structure. When such locaons
cannot be avoided, it is recommended that a
suitable drain pan, adequately drained, be installed
under the appliance. The pan must not restrict
combuson air ow.
 Do not obstruct the ow of combuson and
venlaon air. Combuson air shall not be
supplied from occupied spaces.
 Do not use this appliance in an applicaon such as
a pool or spa heater that uses chemically treated
water . (This appliance is suitable for lling large or
whirlpool spa tubs with potable water.)
 Do not use substute parts that are not authorized
for this appliance.
MUST DO
 The installaon must conform with local codes or,
in the absence of local codes, with the Naonal
Fuel Gas Code, ANSI Z223.1/NFPA 54, or the
Natural Gas and Propane Installaon 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 Naonal 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 tesng of that system
at test pressures in excess of 1/2 psi (3.5 kPa)
(13.84 in W.C.).
Type of installaon
 For installaon in residenal and commercial
applicaons.
 Cered for installaon in manufactured (mobile)
homes.

Rinnai RL75I Specifications

General

Type	Tankless
Fuel Type	Natural Gas or Propane
Flow Rate	7.5 GPM
Energy Factor	0.82
Installation Type	Indoor
Max BTU	180, 000 BTU
GPM @ 35° Rise	7.5
Minimum BTU Input	15, 000 BTU
Venting	Direct Vent