CRITICAL INSTALLATION WARNINGS
• All combustion air must be supplied from outside the RV, and all
products of combustion must be vented to outside the RV.
• DO NOT vent water heater with venting system serving another
appliance.
• DO NOT vent water heater to an outside enclosed porch area.
• Protect building materials from flue gasses.
• DO NOT modify water heater in any way.
• DO NOT alter water heater for a positive grounding system.
• DO NOT HI-POT water heater unless electronic ignition system
(circuit board) has been disconnected.
• DO NOT use battery charger to supply power to water heater
even when testing.
This water heater design has been certified to ANSI Z21.10.3 / CSA
4.3 standards by the IAPMO.
This water heater is not for use in
space heating applications.
SERVICE CALLS & QUESTIONS
Locations and phone numbers of qualified Service Centers can
be found at our website www.precisiontemp.com or
call
800-934-9690 Ext. 109 to obtain service information.
—Do not store or use gasoline or other
flammable vapors and liquids in the vicinity
of this or any other appliance.
WHAT TO DO IF YOU SMELL GAS
• Evacuate all persons from the
vehicle.
• Shut off the gas supply at the gas
container or source.
• Do not touch any electrical switch,
or use any phone or radio in the
vehicle.
• Do not start the vehicle’s engine or
electric generator.
• Contact the nearest gas supplier or
qualified service technician for
repairs.
• If you cannot reach a gas supplier
or qualified service technician,
contact the nearest fire department
• Do not turn on the gas supply until
the gas leak(s) has been repaired.
Installation and service must be performed
by a qualified installer, service agency, OEM
or the gas supplier.
WARNING: If the information in these
instructions is not followed exactly, a
fire or explosion may result causing property
damage, personal injury or loss of life.
Installation, Operation and Maintenance
Effective 4/18
USA and Canada – Follow all applicable state
and local codes. In the absence of local codes or
regulations, refer to the current standards of:
—
Local codes or, in the absence of local
codes, the
National Fuel Gas Code, ANSI
Z223.1/NFPA 54
and/or
CSA B149.1, Natural
Gas and Propane Installation Code
.
—
Local codes or, in the absence of local
codes, the Standard on
Recreational
Vehicles, NFPA1192
and/or
CAN/CSA-Z240
RV.
—
CLEARANCE Requirements
SIdes
,
top and bottom
- 0"
Back
- Enough to make connections, but no
less than 2.5"
Front
- Enough to remote access cover for
service, but no less that 10". Unit should be
installed where it can draw combustion air
into the bottom directly from the coach
exterior and flued through the 2" flue pipe to
the exterior. The combustion air source and
flue pipe must be totally isolated from the
inside of the coach.
1
LPG GAS ON DEMAND
WATER HEATER
Model
RV-550 NSP-EC
11 Sunnybrook Drive
Cincinnati, OH. 45237
Phone: 513-641-4446 * 800-934-9690
Fax: 513-641-0733
www.precisiontemp.com
Cincinnati, OH 45237 1-800-934-9690
www.precisiontemp.com
TwinTemp
Gas Instantaneous Water Heater and Space Heating Appliance
Complies with the requirements of ANSI Z21.10.3b
This is a power vent combination automatic instantaneous water heater and space
heating appliance for installation in a manufactured home (mobile home) or
recreational vehicle, suitable for water (potable) heating and space heating. This
appliance must be installed in accordance with local codes or, in the absence of
local codes, the Standard for Recreational Vehicles, ANSI A119.2/NFPA 501C.
Patent Pending.
BTU / HR Input:
Fuel:
Inlet Pressure:
Manifold Pressure:
Power Input:
Operating Pressure:
Max. Water Temp:
Orifice Size:
Tank Volume:
Recovery Rating:
Elec. Element(s):
55,000 – 12,000
Propane
10.5” WCI Min. to
14” WCI max.
1.30” – 9.20” WCI
12 VDC 10 Amp
125 PSI Max.
(8.6 Bar)
Max.
145° F (63° C)
#71 x 12
2.5 US Gal (9.5L)
54
120
vac,
60
Hz,
12.5
amps
Serial No:
“Clear Window (0.4” x 2.1”)”
Minimum clearances from combustible
and noncombustible construction is 1”
(25mm) on the sides, back and top.
WARNING:
If the information in these
instructions is not
followed exactly, a fire or
explosion may result
causing property
damage, personal injury
or death.
FOR YOUR SAFETY:
Do not store or use
gasoline or other
flammable vapors and
liquids in the vicinity of
this or any other
appliance.
Installation and
Service:
Must be preformed by a
qualified installer, service
agency or gas supplier.
WHAT TO DO
WHAT TO DO
WHAT TO DO
WHAT TO DO IF YOU SMELL GAS:
IF YOU SMELL GAS:
IF YOU SMELL GAS:
IF YOU SMELL GAS:
1. Evacuate all persons from the vehicle.
2. Shut off the gas supply at the gas container or source.
3. Do not touch any electrical switch, or use any phone or
radio in the vehicle.
4. Do not start the vehicle’s engine or electric generator.
5. Contact the nearest gas supplier or qualified service technician for repairs.
6. If you cannot reach a gas supplier or qualified technician, contact the
nearest fire department.
7. Do not turn on the gas until the gas leak(s) has been repaired.
Label Specifications:
Label Size: 6.0” Wide x 8.5” Tall
Radius Corners:
Label Corners: 0.25”
Inside Note Boxes: 0.12”
“Warning”/”For Your Safety” Box: 2.0” Wide x 3.5” Tall with a 0.05” Thick Border
“What to do if……” Box: 5.5” Wide x 1.9” Tall with a 0.05” Thick Border
c
IAPMO-T®
Certified to ANSI Z21.10.3 / CSA4.3
