Girard Products GSWH-1 User manual

Owner’s Manual
Model: GSWH-1
Demand Tankless Water Heater
Power Blower Induced Draft
Dual BTU
LP Gas
• Installation
• Operation
• Service and Maintenance
Installation and service must be
performed by a recommended
installer, service agency or gas
supplier .
This water heater is certified f or
installation in Recreation V ehicles
(RV’s) and is not for use in Marine
or Space Heating Applications .
C AUTION:
Read and Follow all the
Safety Rules and
Instructions before
operating this Appliance.
CSA Approved
Girard Products LLC, 1361 Calle Avanazado, San Clemente CA 92673 U.S.A
Owner’s Manual Part No. 1GWH9401, REV . 4
Patent Pending
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P a g e 2
TANKLESS WATER HEATER - Model GSWH-1
Installer/Customer Responsibilities
• Installation and Service must be performed by a Girard Products LLC
recommended installer, service agency or gas supplier .
• Donot attempt installation as a Do-it-Yourself project
• Read and observe all safety rules
• Shut off gas appliances and pilot lights when refueling.
• Keep these instructions and warranty for future reference
• Follow all applicable State and Local Codes
• Follow a regular schedule of maintenance as outlined in this manual
This is the safety alert symbol. It is used to alert you to potential
personal injury hazards. Obey all safety messages that follow this
symbol to avoid possible injury or death. Failure to follow these
alerts could result in Fire, Explosion or even Death.
WARNING – FIRE OR EXPLOSION
WARNING: These instructions must be followed exactly, or a fire or explosion
may result causing property damage, personal injury or death.
• Donot store or use gasoline or other flammable vapors and liquids in the vicinity of
this or any other a ppliance.
• FOR YOUR SAFETY --- WHAT TO DO IF YOU SMELL GAS
• DO NOT attempt to light any appliance.
• 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.
• Evacuate all persons from the vehicle.
• Shut off the gas supply at the gas container or source.
• Contact the nearest certified service technician or gas supplier for repairs.
• If you cannot reach a certified service technician or gas supplier, 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 Girard Products LLC
recommended installer, service agency or gas supplier .

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CRITICAL INSTALLATION W ARNINGS
• Installation and Service must be performed by a Girard Products LLC recommended
installer, service agency or gas supplier .
• This product is not designed for Do-it-Yourself Installation.
• Install ONLY in recreation vehicles (RV’s). RV’ s are recreation vehicles designed
as temporary living quarters for recreation, camping, or travel use having their own
power or towed by another vehicle. This water heater is NOT designed for Marine or
Space Heating a pplications
• All combustion air must be supplied from the outside of the RV , and all products of
combustion must be vented to the outside of the RV .
• DO NOT vent water heater with a venting system serving another appliance or to an
outside enclosed porch area.
• DO NOT modify water heater in any way. This is dangerous and will void the warranty.
• DO NOT alter water heater for a positive grounding system.
• DO NOT HI-POT water heater unless the electronic ignition control (circuit board) has
been turned ‘OFF’(Power switch is in “Off” position)
• DO NOT use battery charger to supply power to water heater even when testing.
• Protect building materials from flue gasexhaust.
• Install the water heater on an exterior wall, with access door opening to the outdoors.
• DO NOT lift the water heater or carry it by holding the blower assembly support
bracket/exhaust tube.
• DO NOT modify the length of the wires protruding past the strain relief from the
rear of the housing.
USA AND CANADA - FOLLOW ALL APPLICABLE STATE AND LOCAL CODES
IN THE ABSENCE OF LOCAL CODES OR REGULATIONS REFER TO CURRENT
STANDARDS OF:
• Recreational V ehicles ANSI A119.2/NFP A 501C.
• CSA standard Z240 RV Series, Recreational V ehicle.
• Park Trailers A119.5
• National Fuel Gas Code ANSI Z223.1 and/or CAN/CGA B149 Installation Codes
• Federal Mobile Home Construction & Safety Standard, Title 24 CFR, part 3280, or
when this Standard is not applicable, the Standard for Manufactured Home Installa tions
(Manufactured Home Sites, Communities and Set-Ups), ANSI A255.1 and/or CAN/
CSA-Z240 MH Series, Mobile Homes.
• National Electrical Code ANSI/NFPA No. 70 and/or CSA C22.1

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INST ALLATION
WARNING! C AUTION!
• Improper installation, adjustment, alteration, service or maintenance can cause
property damage, personal injury or loss of life.
• Installation and Service must be performed by a Girard Products LLC recommended
installer, service agency or gas supplier .
• This product is not designed for do-it-yourself installation.
• DO NOT lift the water heater or carry it by holding the blower assembly support
bracket/exhaust tube (Figure 1).
The following instructions apply to the most common type of installation for Girard Products
GSWH-1 water heater. Consult with Girard Products, LLC technical support or engineering
department if you have any additional questions regarding your specific installation/application.
IMPOR TANT!
• For proper operation this water heater requires a minimum water flow of 1.0
Gallon per Minute (gpm) for each Hot Water faucet it supplies.
Select a suitable location
The water heater is designed to be installed on a floor or a fixed platform with access to water,
gas and electrical connections from the back. It is recommended that the GSWH-1 be located as
near the center of the coach as possible.
DO NOT INSTALL IN AN AREA WHERE ONE OR BOTH THE INLET AIR VENT AND FLUE
VENT CAN BE COVERED WHEN A DOOR OR ACCESS PANEL OF THE VEHICLE IS OPENED.
DO NOT INSTALL WHERE THE FLUE VENT IS CLOSER THAN ONE FOOT IN ALL
DIRECTIONS FROM ANY WINDOW OR OPENING INTO THE VEHICLE.
DO NOT INSTALL THE WATER HEATER OR ANY OTHER APPLIANCE WHERE IT CAN VENT
INTO AN AREA COVERED BY AN AWNING, CANOPY OR ANY OTHER ENCLOSURE.
(Note: The water heater can be installed under an RV roll-out/retractable type awning providing
the awning does not have an enclosure such as a screen room and/or some type of “walled
enclosure”)

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Site Preparation
To install on carpeted area you must install a metal or wood panel under the water heater that
extends at least 3 inches beyond the width and depth of the unit. If water leakage can result in
damage to the adjacent area, install a drain pan that can be drained to outside of the vehicle,
under the water hea ter .
Verify that a clearanceof 1 inch will remain after installation between the top surface of the
water heater and any combustible material. 0 inch clearance is acceptable for the sides.
Make sure that the front edge of the opening is surrounded by a solid frame to firmly anchor the
water heater; if needed, build an appropriate frame using 2”X2”elements (Figure 1)
The rough opening for the GSWH-1should be 12.75” X 12.75”with right angle corners. The
exterior wall opening must be the same dimensions with no radius corners.
Figure 1
Blower Assembly Support
Bracket/Exhaust T ube
Ensure that water and gas connections from
the vehicle are in place for installing the unit.
Allow sufficient length and flexibility
in the water and gas lines to reach the
connections while the unit is partiall y
inserted into the opening.
Water Heater Installation
Remove the water heater from the box by grasping the metal sides of the housing and lifting
upward until it is free of the box.
IMPOR TANT!
• Lifting or moving the water heater using the Blower Assembly Support
Bracket/Exhaust Tube (Figure 1) may result in improper alignment of the vent
and/or improper alignment of the Sail Switch.

P a g e 6
Partially insert the water heater into the opening and connect both Hot and Cold water lines to the
appropriate ½”NPT fittings. Connections can be made using PEX swivel nut adaptors with NPS
straight threads and a cone seal or with a standard ½”FPT nut. The PEX swivel nuts require only
hand tightening. When using a standard ½”FPT nut use Teflon tape and/or PTFE pipe paste and
do not over-tighten (Figure 2, page 6).
PRODUCT DAMAGE!
• Excessive torque will damage the Cold Water and Hot Water Inlets.
DO NOT over tighten.
Connect the gas using a 3/8”LPGas line. Place the grommet on the line ahead of the
compression nut before flaringthe tube (Figure 2). Use additional caulking as needed to
complete a permanent seal with the housing around the rubber grommet.
Figure 2
IMPORTANT! CRITICAL INST ALLATION
• DO NOT cut any wires.
• The length of the external wires, those wires extending beyond the strain relief
from the rear of the housing (Figure 2), must NOT be shortened for any reason.
Shortening these wires will prevent the removal of the Control Housing during
servicing and/or testing.

P a g e 7
NOTICE
• If you wish to install the flange as an integral part of the water heater housing
proceed to B: Installation of water heater with Integral Flange (below).
A: Installation of water heater with separate flange
1. Complete the “skin”application to the vehicle’s outer wall.
2. Positionwater heater housing into the frame opening with the front edge aligned
evenly to the exterior wall (See Figure 3).
3. To prevent water and air leaks apply sufficient caulking around the entire frame
opening and the exterior edge of the water heater housing. Use a suitable caulking
material that will result in a permanent seal between the water heater and the
vehicle’s frame.
4. Press the side walls of the water heater housing firmly against the frame to
expel any bubbles and ensure a good bond.
5. When ready to proceed, apply additional caulking or butyl tape to the back of
the door flange that will contact the RV sidewall around perimeter of the opening.
6. Insert the door flange intothe water heater housing and press the flange firml y
against the sidewall.
7. Secure the flange to the vehicle using No.8 – ¾”flat head screws through each hole
along the perimeter. Verify that a tight seal exists between the side wall and the
flange. If not, repeat above steps.
8. Align each hole along the inside frame of the flange with the corresponding holes in
the water heater housing and secure to the frame using No.8 – ¾”flat head screws
using two screws per side.
9. Remove any excess caulking and clean all surfaces.
Apply caulking
along each side.
Figure 3

P a g e 8
B: Installation of water heater with integral flange
1. Protect the side wall with masking tape or other suitable means to insure that
it is not damaged while installing the water hea ter .
2. Position the water heater so that the front edge extends from the opening
approximately 2”and insert the door flange into the housing.
3. Permanently attach the flange to the housing using stainless steel screws or
stainless steel rivets withrecommended grip range of .188”to .129”and hole
size of .129”to .133”.
4. To prevent water leaks apply a good amount of caulking or butyl tape on the
sidewall around perimeter of the opening that will be covered by the flange
and along the front edge of the housing that will contact the mounting frame.
5. Slide the water heater in place intothe opening and press the door flange
against the sidewall.
6. Secure water heater housing unit to the vehicle using No.8 – ¾”flat head
screws through each hole in the door flange (Figure 4). Verify that a tight seal
exists between the side wall and the flange. If not, repeat above steps.
Figure 4
C: Installation of 12VDC Power and Mode Switch
1. SET THE POWER SWITCH TO THE “OFF”POSITION and
connect the power wires to a 12VDC circuit from the
DC panel protected with a 10 amp fuse. The Red wire is
positive (+) and the Black wire is negative (-) and is
internally connected to ground.
2. To install the remote Mode Switch (Figure 5),connect one
pole of the switch to the High/Low wire (green) and the other pole
to ground.
Mode Switch
Figure 5

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D: Functional tests
WARNING – FIRE AND/OR EXPLOSION
WARNING: These instructions must be followed exactly, or a fire or explosion may result
causing property damage, personal injury or death.
DO NOT use matches, candles or other sources of ignition when checking for gasleaks.
1. Verify the power switch is in the “OFF” position
2. Turn on the water supply to the unit.
3. Open and then close the hot AND cold water faucets in the vehicle to fill the pipes with
water. (Purge air out of all water lines) Close the faucets when the water is flowing
smoothly and verify that there are no leaks at the connections and within the water heater.
4. Turn on the gas supply and check all gas connections for gas leaks with leak detection
solution.
5. Turn the power switch to the “ON” position.
6. Open a hot water faucet and verify that the unit lights and supplies warm water
at the faucet.
7. WHILE THE UNIT IS RUNNING , verify that there are no leaks at the gas connections to the
control valve and to the burner .
E: Door Installation
W ARNING!
It is necessar y to use only an applicable Girard Water Heater Door (part numbers:
1GWHD, 1GWHDA6, 1GWHDAS10) with a Girard GSWH-1 Water Heater. Use of an y
other brand of water heater door will affect the operation and performance of the Girard
Water Heater and may cause a hazardous condition.
Aftermounting and securing the unit in the chosen location, install the door making sure that:
1. The door mounting posts on the door flange are properly aligned with corresponding
holes along the door’s lower edge. If needed, carefully re-align the posts with pliers.
2. The exhaust tube extends beyond the door’s face through the clearance hole
BUT not beyond the face of the door. Be sure that the exhaust tube is seated
properly. See Figure 6
WARNING! PRODUCT DAMAGE
• DO NOT FORCE THE DOOR CLOSED with the tube pressed inside the door.
Doing so may damage the door or the exhaust tube and misalign the sail switch.
3. Ensure that the door lock operates smoothly and engages easil y .

P a g e 10
Figure 6
Insert exhaust tube
through door opening
WARNING! C AUTION!
• Disconnect the unit from the gas suppl y
line during any pressure testing of the
gas system in excess of ½ PSIG
(3.4 kPa, 14”water column [W.C.]). DO
NOT set inlet pressure higher than the
maximum indicated on rating plate of gas
valve (13”W.C.).
• If an external electrical source is utilized,
the appliance,when installed, must be
electrically grounded in accordance with
local codes or, in the absenceof local
codes, with the National Electrical Code,
ANSI/NFPA 70 and/or the CSA C22.1,
Canadian Electrical Code.
This completes the installation of the Model GSWH-1 water heater.
OPERATING INSTR UCTIONS
CONSUMER SAFETY WARNING
• Use with LP gas onl y .
• Shut off gas appliances and pilot lights when refueling.
• Turn gas OFF at the LP tank when vehicle is in motion. This disables all gas
appliances and pilot lights. Gas appliances must never be operated while
vehicleis in motion.
• LP tanks must be filled by a qualified gas supplier onl y .
• Should overheating occur, turn gas OFF at the LP tank and turn the operating
switch to the OFF position.
• DO NOT TURN ON THE COLD WATER FAUCET TO ADJUST THE
TEMPERATURE.

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Understanding How the Girard T ankless Water System W orks
The Girard Products model GSWH-1 is a new ‘induced-draft’, tankless water heater designed
specifically for Recreation V ehicles (RV). Its configuration and size are consistent with the tank
based RV water heaters currently in use and is designed for OEM’ s and after market use b y
the RV industry. A main feature of the GSWH-1 is a Dual BTU burner, which is set by the Mode
Switch to either HIGH (34,000 BTUs) or LOW (27,000 BTUs). The incoming water temperature
will raise 40°- 60° (F) based on water flow .
A tankless water heater heats water while it is being used i.e., on demand. The output
temperature of the water depends on the temperature of the inlet water AND the amount of hot
water that is drawn.
To operate, first purge air out of ALL hot and cold water lines, set the Power Switch to
the ON position and set the Mode Switch to HIGH , then open the HOT Water Faucet by turning
the faucet knob counter clockwise; the water will begin to heat up once the water in the piping
has been purged. DO NOT TURN ON THE COLD WATER . Then DECREASE the flow of the
water (turn the faucet knob clockwise) until you achieve the desired temperature. The hot water
valve behaves very much like a typical mixing valve: it INCREASES the temperature when the
water flow is REDUCED . TO DECREASE THE WATER TEMPERATURE (i.e., make the water
cooler), increase the flow of the water by turning the faucet knob counter clockwise thereb y
increasing the flow. DO NOT USE COLD WATER TO ADJUST THE TEMPERATURE.
IMPOR TANT!
• The presence of a flow restrictor in the hot water line may limit your ability
to reach a comfortable water temperature. For best results remove the
restrictor in the shower head.
• Purge air out of ALL hot and cold water lines, including outside shower and
wash machine water lines (if applicable).
In a conventional installation the Girard T ankless Water Heater is connected to:
1. The RV’ s cold water system deriving its water input from a pressurized (45 psi or
greater) source such as a shore connection or an RV water pump connected to
the fresh water storage tank.
2. The RV’ s Hot water system (i.e. faucets and shower)
3. The RV’ s LP Gas system capable of supplying its rated BTU requirement.
4. The RV’ s 12VDC filtered electrical power distribution panel utilizing a 12 Volt, 10
amp fused line.

P a g e 12
Operation
Open the door of the GirardProducts model
GSWH-1 to acquaint yourself with the unit
and its controls. The small user panel loca ted
on the left side of the unit (see Figure 7)
includes:
1. LED Indicator
2. Power ON/OFF switch
Figure 7
Power ON/OFF Switch
LED Indicator
To begin operation simply set the switch to the ‘ON’ position (Figure 7), set the Mode switch
(Figure 5) to the HIGH position, AND open the HOT WATER faucet you want to use. The unit
will automatically light and start heating your water. DO NOT use cold water to adjust the
temperature.
To begin, it is recommended that the Mode Switch is set to the HIGH position. If after water flow
adjustments, the water is too hot, then turn the Mode Switch to LOW setting. The temperature of
the incoming water and the flow of the water will determine whether HIGH Mode or LOW Mode
is the desired setting.
NOTICE
Y ou will notice that if you increase the flow of hot water (i.e., open the faucet more)
the temperature will automatically DECREASE since more water is being hea ted.
If, on the other hand, you decrease the water flow (close the faucet) the temperature
will INCREASE. DO NOT TURN ON THE COLD WATER . If you reduce the water flow
too much, which will result in HOTTER water, the rising temperature will increase and
trigger the Safety Cut Off or ‘limit switch’(122°F) and the burner will shut off. This is
commonly referred to as “limiting”and is a safety feature designed to protect against
accidental scalding. Whenever the temperature rises to a
comfortable level, INCREASE the water flow (open the faucet) to maintain the desired
temperature and prevent the burner from shutting off (limiting).
If a shut off does occur, you will notice a decrease in the water temperature. In this
case do not close the faucet , but rather openit more and the water heater will
relight after a few seconds; you may then re-adjust the temperature by reducing the
flow appropriately (i.e., less than the previous setting to avoid repeated limiting).

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WINTERIZATION
Freezing of the water heater and its plumbing components will result in severe damage not
covered by warranty. For this reason it is advisable to follow the recommendation(s) below if
the unit is to be stored in a freezing environment or for long periods of time. At the start of the
winter season or before traveling to a location where freezing conditions are likely, the unit must
be winterized. The very small amount of water present in the heat exchanger DOES NOT require
the installation of a bypass kit. Winterization can be accomplished using one of the two common
methods of winterization used for RV water systems:
• Compressed Air method: Drain all water from the system opening one tap at a
time and using compressed air to purge all remaining water .
• Anti-freeze method: Follow the recommendations of the Recreational V ehicle
manufacturer and fill the system with a non toxic anti-freeze. Make sure that the
anti-freeze flowsfrom each tap to complete the process.
PRESSURE - TEMPERATURE RELIEF V AL VE
This water heater is equipped with a temperature and pressure relief valve that complies with
the standard for Relief V alves and Automatic Gas Shutoff Devices for Hot Water Systems, ANSI
Z21.22.
WARNING – SCALDING INJUR Y -EXPLOSION
• V alve is not serviceable; if defective it must bereplaced.
• Tampering with valve will result in scalding injury. Do not place a plug or reducing
coupling on outlet part of valve. If you use a discharge line allow complete
drainage for both valve and line.
• Tampering with valve will void the warranty.
THIS VALVE IS A SAFETY COMPONENT AND MUST NOT BE REMOVED FOR ANY REASON
OTHER THAN REPLACEMENT .
WHEN REPLACING THE PRESSURE – TEMPERATURE RELIEF V AL VE
• DO NOT install anything less than a combination pressure–temperature relief
valve certified by a nationallyrecognized testing laboratory that conducts
periodic inspections of such products and certifies them as meeting the
requirements for Relief V alves and Automatic Gas Shutoff Devices for Hot W a ter
Supply Systems, ANSI Z21.22. V alve must have a maximum set pressure not to
exceed 150 psi.
• Install valve into opening provided and marked for this purpose on water heater.
• Installation must conform with local codes or in the absence of local codes,
American National Standard for Recreational V ehicles, ANSI A119.2/NFP A 501C.

P a g e 14
Functional Description
We include here additional information needed to identify the various components of the system
in order to facilitate communications of the user with Girard Products or an authorized Service
Center for any questions regarding the proper operation of the water heater. The model GSWH-1
consists of the following main sub-systems and components:
1. Water Sub-System:
1.1. FlowSwitch
1.2. Heat Exchanger
1.3. Limit Switch / Emergency Cut Off (ECO): (Normally closed; open T>122°F)
1.4. P/T V alve: to provide pressure relief in case of overheating
2. Gas Sub-System
2.1. Regulator with Dual Solenoid V alve
2.2. Dual BTU (Hi/Lo) valve (Powered=Maximum output / Unpowered=Reduced output)
2.3. Burner (Blade type; high efficiency)
2.4. High/Low thermostat
3. Flue Sub-System
3.1. FlueCollector
3.2. Exhaust Blower
3.3. Flue outlet
4. Electrical Sub-System
4.1. 12VDC connection wires
4.2. Powerswitch
4.3. Blower Motor
4.4. Microprocessor based Circuit Board (Spark Igniter, Safety and Dia gnostics)
4.5. Spark Igniter
4.6. Sail switch to detect air flow at the exhaust.
4.7. Mode Selector (High/Lo) to control the operation of the Dual BTU valve
In the following pages we present:
1. Figure 9: Shows an exploded view of the GSWH-1 water heater with identification labels
for all components.
2. Figure 10 : A wiring diagram with all electrical components showing all interconnections
and the wire colors adopted.
3. Figure 11: A Circuit Ladder Diagram to illustrate the Control logic and functionality of
each electrical component

P a g e 15
MAINTENANCE
Routine Maintenance
We recommend that the GSWH-1 water heater be inspected monthly by the user and at least
once a year by a Girard Products LLC recommended service technician.
Before an inspection, make sure that the LP Gas and Water systems are turned on. Purge air out
of ALL hot and cold water lines.
A routine inspection must include the following items:
1 . Inspect the integrityof the sealing (caulking or tape) between the side wall and the door
of the water heater and ensure that the unit is solidly mounted to the vehicle.
2 . Verify that the air inlet openings (louvers) are completely open and clear of any debris
including mud, leaves, twigs, insects etc. Remove all obstructions to allow full air flow .
3. Insects, including mud wasps and spiders, can build nests in the Exhaust Tube Outlet
and Exhaust Collector which will affect the performance of the unit. Inspect the Flue
Outlet Tube and Exhaust Collector to make sure that they are unobstructed and that the
screen is clean. If debris or insects are present, clean and vacuum to
remove any remaining debris. The use of any type of aftermarket screen to cover the
vent is not permitted and will void the warranty .
4. Open the cover and verify that no debris or extraneous combustible materials are
present anywhere (especially in the area of the burner and the gascontrols);
remove any item present and wipe clean the bottom of the housing.
5. Inspect the interior surface of the housing for any cracks or corroded areas that
could allow penetration of gases into or out of the interior of the vehicle. Check
especially around the Hot Water, Cold Water, Gas and electrical connections.
6. Check that all wire connections are firmly in place and there are no signs of chafing or
cracks on the insulation. Verify that the spark ignition cable between the Control Board
and the igniter is securelyin place and not shorted to any metal component.
7. At least once a year activate the Relief Valve by lifting the lever on top of the
valve. MAKE SURE THAT THE WATER HEATER HAS NOT BEEN ON RECENTLY AND
THE WATER FLOWING FROM THE HOT WATER OUTLET IS COLD .
8. Turn on the power to the water heater and
open a hot water faucet to inspect
the flame of the burner. The flame should
be of the normal bluish appearance
that indicates proper combustion. This can
be accomplished by observing the
flames through the sight hole and looking
at the burner under the edge of the
heat exchanger (See Figure 8).
Flame
sight
hole
Figure 8
Flame at top of burner

P a g e 16
T roubleshooting
Whenever the user opens a hot water faucet,
the water activates the “Flow Switch”, which
provides a thermostatic request to the Circuit
Board for Ignition. Upon the request the Circuit
Board performs the following tasks:
1. Microprocessor reset and self-check
2. V erification that no flame is present
3. V erification that the Sail Switch is open
4. Turn on the Blower
5. Upon detection of combustion air flow ,
starts the ignition routine by opening
the gas valve and supplying the first
sparking sequence.
Normally the ignition trial is successful and
the user will start receiving warm water at the
faucet.
The Control Board detects the conditions
that could result in a hazardous situation
and either prevents the Gas ignition to occur
or immediately shuts down the flame b y
interrupting the gas flow to the burner. The
failures detected by the Control Board are:
Failure to light
If the burner fails to light, or if flame is not
detected during the first ignition attempt, the
gas valve is deenergized and the control goes
through an inter-purge delay before ignition
is attempted again. The control will attempt
two additional ignition sequences before going
into ‘LOCKOUT’ after which the valve relay
will remain de-energized and the blower will
turn off after a five minute delay. (Lockout
Condition)
Recovery from ‘lockout’requires a manual
reset by either resetting the thermostatic
demand (turning off the water flow) or turning
off the power for a period of 5 seconds and
then opening the HOT Water F aucet.
Flame failure
If the established flame signal is lost while
the burner is operating, the control will
respond within 0.8 seconds, the gas valve
is de-energized and a new inter-purge and
ignition routine will begin. If the burner does
not light, the control will de-energize the
gas valve and will make two more a ttempts
to relight the burner. If the burner doesnot
relightafter the threetrials the control will
go into LOCKOUT as noted above in “Failure
to light”. If flame is re-established, normal
operation resumes.
Combustion airflow problems
If the airflowsignal is lost, or the hi-limit
switch (See Notice Page 12) opens during
operation, the gas valve is immediatel y
de-energized and the blower stays on. If the
switch closesagain,a normal ignition
sequence will resume. If not, and if this
condition persists for more than five minutes,
the control will enter lockout with the blower
of f.
Diagnostics feature
If the unit stops operating normally, please
check the LED indicator on the user panel. If
the LED is on or blinking, the blinking pa ttern
will notify youof the fault detected by the
Control Board as f ollows:
• Steady On - Internal Control Fault
• 1 Flash - Air Fault
• 2 Flashes - Flame Detection Error
• 3 Flashes – Lockout
• 4 Intentionally ‘NA’ – Reserved f or
Future Dia gnostics
• 5 Flashes - Low volta ge
The blinking LED pattern will be repeated at
intervals of three (3) seconds.

P a g e 17
Exhaust Collector
Limit Switch Blower Motor Assembly Support
Heat Exchanger
Relay
Sail Switch
Circuit Board (Fenwal)
Housing
Diagnostic LED Exhaust T ube
Wire
Connections
Hot Water
Flow
Switch
Cold Water
Gas Burner
Gas Control V alve
Anti-Freeze Thermostat
Burner Manifold
Power Switch
Control Panel Housing
Door Flange
Door
Figure 9 - EXPLODED VIEW OF MODEL GSWH-1 AND MAJOR COMPONENTS IDENTIFICATION
Figure 10

P a g e 18
Figure 11
Specifications
The table below summarizes the main performance specifications of the Model GSWH-1.
BTU/HR 27,000 –34,000
Fuel
Propane (LP Gas)
Inlet Pressure
10.5” WCI Min to 14”WCI Max
Manifold Pressure
8” – 10”WCI
PowerInput
12VDC < 3 amp
Water Operating Pressure 125
PSI Max
Max Water T emperature 125 º F
Dimension Width: 12.5” - Height: 12.5” - Depth 15.5”
Shipping W eight 22 lbs

Manuel de l’utilisateur
Modèle: GSWH-1
Chauffe-eau instantané
T irage induit par soufflerie
BTU double
Gaz propane liquide
• Installation
• Utilisation
• Service et entretien
L’installation et l’entretien doivent
être effectués par un installateur ,
une agence de service ou un
fournisseur de gaz recommandé.
Ce chauffe-eau est certifié pour
l’installation dans un véhicule
récréatif (VR) et il ne doit pas être
utilisé dans les véhicules marins ni
pour le chauffage de locaux.
ATTENTION : Lire
et respecter
toutes les règles
de sécurité et les
instructions a vant
d’utiliser cet a ppareil.
CSA Approved
Girard Products LLC, 1361 Calle Avanazado, San Clemente CA 92673 U.S.A
Manuel de l’utilisateur pièce n° 1GWH9402 RÉV . 4 Brevet eninstance
P a g e 19

P a g e 20
CHAUFFE-EAU SANS RÉSERVOIR - Modèle GSWH-1
Responsabilités de l’installateur/client
• L’installation et l’entretien doiventêtre effectués par un installateur, une agence de ser vice
ou un fournisseur de gaz recommandé par Girard Products LLC.
• NE pas tenter d’installer l’appareil par soi-même.
• Lire et respecter toutes les règles desécurité.
• Lors du réapprovisionnement en carburant, éteindre les appareils à gaz et les flammes
pilotes.
• Conserver ces instructions et la garantie pour consultation future.
• Respecter tous les codes nationaux et locaux.
• Respecter le calendrier d’entretien indiqué dans cemanuel.
Il s’agit du symbole d’alerte de sécurité. Il est utilisé pour
signaler les dangers de blessure possibles. Respecter tous les
messages de sécurité qui suivent ce symbole pour éviter des
blessures potentielles oula mort. Le manquement à ces alertes
peut causer un incendie, une explosion ou même la mort.
AVERTISSEMENT - INCENDIE OU EXPLOSION
AVERTISSEMENT : Ne pas suivre à la lettre les instructions contenues dans ce
manuel risque d’entraîner un incendie ou une explosion et des dégâts
matériels, des blessures ou la mort.
Ne pas entreposer ni utiliser d’essence ni autres vapeurs ou liquides inflammables à
proximité de cet appareil ou de tout autre appareil.
SÉCURITÉ - QUE FAIRE EN PRÉSENCE D’UNE ODEUR DE GAZ
• NE PAS tenter d’allumer tout appareil.
• NE toucher AUCUN interrupteur électrique, n’utiliser ni le téléphone, ni la radio à
l’intérieur du véhicule.
• NE PAS démarrer le véhicule ou le générateur électrique.
• Évacuer TOUS les passagers du véhicule.
• Couper l’alimentation en gaz au niveau du réservoir ou à la source.
• Communiquer avec le fournisseur de gaz ou le technicien d’entretien qualifié le plus
près pour effectuer toute répara tion.
• S’il est impossible de joindre un fournisseur de gaz ou un technicien d’entretien
qualifié, communiquer avec le service des incendies le plus près.
• NE PAS ouvrir l’alimentation en gaz avant que la ou les fuites soient réparées.
L’installation et l’entretien doivent être effectués par un installateur, une agence de
service ou un fournisseur de gaz recommandé par Girard Products LLC.