Dometic RM660 - Manual (Page 5)

INSTALLATION
GENERAL INSTRUCTIONS
The refrigerators outlined hereon have been design certified
under ANS i! 21.19 Refrigerators by the American Gas Asso-
ciation for installation in a mobile home or recreational vehicle
and are approved by the Canadian Gas Association.
The certifications are, however, contingent on the installation
being made in accordance with the following instructions as
applicable.
The installation must in the USA conform with:
1. National Fuel Gas Code 2223.1-l 974
2. Mobile Homes Al 19.1-l 975
3. Recreational Vehicles Al 19 2-l 975
The unit must be electrically grounded in accordance with the
National Electric Code ANSI, Cl- 1978 when installed if an
external alternating current electrical source is utilized.
4. Any applicable local code
In Canada
1. Standard CGA 10.1 /CSA 2240.4, gas equipped mobile
housing and recreational vehicles
2. Sandard CSA 2240.61 electrical requirements for mobile
housing
3. Standard CSA Z240.6.2/C22.2 No 148 electrical require-
ments for recreational vehicles.
Ventilation
The installation shall be made in such a manner as to separa-
te the combustion system from the living space of the mobile
home or recreational vehicle. Openings for air supply or for
venting of combustion products shall have a minimum dimen-
sion of not less than 1/4 inch.
Proper installation requires one lower fresh air intake and one
upper exhaust vent. The ventilation kits shown in this instruc-
tion booklet have been certified for use with the refrigerator
models listen in the tables. Certified vent system kits, see
separate list. The ventilation kits must be installed and used
without midification. An opening towards the outside at floor
level in the refrigerator compartment must be provided for
ventilation of heavier-than-air fuel gases. The lower vent of
the recommended kits is provided with proper size openings.
The flow of combustion and ventilating air must not be
obstructed.
For ready serviceability of the burner and control manifold
parts of the refrigerator the lower side vent is fitted with a iiftout
planel which provides an adequate access opening.
ged directly into a properly grounded three prong receptacle.
Do not cut or remove the grounding prong from this p!ug The
cord should be routed to avoid coming In contact with the
burner cover. flue cover or other hot components
Refrigerator models requiring 12 V DC
supply
On units provided with interior light or automatic reigniter or
both there is one additional terminal block marked " 12 V”. On
“Tri-Power” units with interior light or automatic reigniter or
both there are two additional blocks.
The refrigerator must be connected to the battery circuit with
two wires of adequate capacity to avoid voltage drop. The wire
gage should be chosen with consideration to the wire length in
accordance with table below. The 12 V circuit must be fused.
Maximum circuit fuse size: 15 Amps. for the models RM 360
and RM 460.20 Amps. for RM 660.30 Amps. for RM 760 and
RM 1300.
Do not use the body or chassis of the vehicle as a substitute
for either of the two conductors. No other electrical equipment
or lighting should be connected to the refrigerator circuit The
refrigerator will draw from 10 to 23 Amps at 12 Volt depending
on model.
The interior light and the reigniter must be connected to a
separate battery circuit and will draw about 1 Amp.
Maximum two conductor wire length in feet
AWG
RM360 RM460 RM660 RM760 RM1300
Interior
125W 135w 175w 250W 275W light only
10W
14 10 9 7 5 4 17
12 17 15 12 8
7 35
10 27 25 19 13 12 55
8 43 40 31 22 19 85
6 69 64 49 34 31 135
4 110 102 79 55 50 220
CAUTION
Do
not operate the refrigerator on 12 Volt when the vehicle IS
parked. You will run out of battery in a rather short time.
If possible the installation of a 12 Volt operated refngerator
should be completed with a relay mounted either in the car or
in the recreational vehicle (see Fig below ) T h i s relay will
automatically cut out the refrigerator when the car motor is
stopped
GAS CONNECTION
Hook-up to the gas supply line is accomplished at the manual
gas valve, which is furnished with a 3/8” SAE (UNF 5/8”- 18)
male flare connection. All completed connections should be
checked for leaks with soapy water.
The gas supply system must incorporate a pressure regulator
to maintain a supply pressure of not more than 11 inches
water gage.
In case detailed instructions on the installation and connection
to the gas supply are required, contact your dealer or distribu-
tor.
ELECTRICAL CONNECTION
120 Volts A C
The refrigerator is equipped with a three prong (grounded)
plug for protection against shock hazards and should be plug-
Fig. 7