Rinnai EX17C (RHFE-434FTA) User Manual

Page of 84
 
 
Rinnai Corporation EX17C / EX22C Manual 
 
15 
Installation Instructions 
• 
A qualified service technician should install the 
appliance and inspect it before use. 
• 
If you move, check the gas type in your new area.  The 
local gas authority will be able to advise on local 
regulations. 
• 
The installation must conform with local codes or, in 
the absence of local codes, with the National Fuel Gas 
Code, ANSI Z223.1/NFPA 54
, or the Natural Gas and 
Propane Installation Code, CSA B149.1
• 
A manufactured home (USA only) or mobile home 
OEM installation must conform with the Manufactured 
Home Construction and Safety Standard, Title 24 CFR, 
Part 3280
, or, when such a standard is not applicable, 
the standard for Manufactured Home Installations, 
ANSI Z225.1
, or the standard for Gas Equipped 
Recreational Vehicles and Mobile Housing, CSA 
Z240.4
• 
The appliance, when installed, must be electrically 
grounded in accordance with local codes or, in the 
absence of local codes, with the National Electrical 
Code, ANSI/NFPA 70
, or the Canadian Electrical 
Code, CSA C22.1. 
• 
Appliance input ratings are based on sea level 
operation and need not be changed for operation up to 
2000 ft (610 m) elevation.  For operation at elevations 
above 2000 ft (610 m), follow the procedure in the 
section, Adjust Gas Pressure Settings. 
• 
The appliance and its appliance main gas valve must 
be disconnected from the gas supply piping system 
during any pressure testing of that system at test 
pressures in excess of 1/2 psi (3.5 kPa). 
• 
The appliance must be isolated from the gas supply 
piping system by closing its equipment shut off valve 
during any pressure testing of the gas supply piping 
system at test pressures equal to or less than 1/2 psi 
(3.5 kPa). 
• 
If the flooring is carpet, tile, or other combustible 
material other than wood, then the appliance must be 
installed on a metal or wood panel extending the full 
width and depth of the appliance. 
• 
Rinnai suggests that a dedicated electrical circuit with 
a 120V AC, 60 Hz, 10 amp power source be used. 
• 
This appliance discharges a large volume of warm air 
next to the floor.  Any particles in the air such as 
cigarette smoke could cause discoloration in carpet.  
The warm air flow could discolor nylon carpets 
containing dyes or vinyl surfaces.  To prevent 
discoloration of the floor covering a mat may be placed 
under the appliance which extends about 30 inches 
(750 mm) in front of it.  (Wood is included in the 
shipping container that can be cut to size and used if 
needed.) 
• 
This appliance is not designed to built in. 
• 
This appliance is only for use with the type of gas 
indicated on the rating plate.  This appliance is not 
convertible for use with other gases unless a certified 
kit is used.  If a conversion of the unit is needed, 
conversions must be performed by a qualified service 
provider at the owner’s expense. 
• 
Follow the Adjust Gas Pressure Settings (page 28) 
and confirm that the correct code is used for your 
gas type and altitude. 
• 
This appliance must not be connected to a chimney 
flue serving a separate solid-fuel burning appliance. 
• 
Two 1/8 in test plugs are provided for testing of 
manifold differential pressure.  They are located on the 
modulating gas valve and on the burner manifold. 
• 
The appliance should be correctly sized for the space it 
is required to heat.  It is recommended that an industry 
standard BTU Heat Loss Calculation be conducted to 
determine the proper sizing. 
• 
Follow the installations instructions and those in Care 
and Maintenance
 for adequate combustion and 
ventilation air. 
• 
The flow of combustion 
and ventilation air shall 
not be obstructed. 
• 
Locate the heater 
where outdoor air does 
not affect the room air 
thermistor.  Otherwise, 
the sensible 
temperature control 
feature will be affected. 
• 
Clearances to access 
the appliance during 
servicing are 2 inches 
(50 mm) from the 
sides, 40 inches (1 m) 
from the front, and the 
area shown above the 
appliance in the 
picture. 
  General Instructions   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
     WARNING 
 
 
Do not use substitute materials. 
Use only parts certified with the appliance. 
If installation is at a location above 
2001 ft (611 m), then follow the Adjust 
Gas Pressure Settings section. 
If installation is at or below 2000 ft 
(610 m) then the pressure settings do 
not need to be adjusted. 
NOTICE
 
9"
(229 mm)
3"
(76 mm)
6"
(153 mm)
clearance for
maintenance