Table of Contents
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Model: GSWH-2
Features:
• Demand Tankless Water Heater
• LP Gas / Induced Draft
• Constant Outlet Temperature
• Linear Gas Control Valve
• Electronic Gas Modulation
• Microprocessor Controls
WARNING: If the information in these instructions is not followed exactly,
a ire or explosion may result causing property damage, personal injury
or death.
• Do not store or use gasoline or other lammable 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 an 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 qualiied service technician for repairs.
• If you cannot reach a gas supplier or qualiied service technician, contact the
nearest ire department.
• Do not turn on the gas supply until the gas leak(s) has been repaired.
• Installation and service must be performed by a qualiied installer, service
agency or the gas supplier.
Girard Products LLC, 1361 Calle Avanzado, San Clemente CA 92673 USA
Owner's Manual
Patent Pending
P a g e
1
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Summary of Contents for Girard Products GSWH-2
- Page 1 • Do not turn on the gas supply until the gas leak(s) has been repaired. • Installation and service must be performed by a qualiied installer, service agency or the gas supplier. Girard Products LLC, 1361 Calle Avanzado, San Clemente CA 92673 USA Patent Pending P a g e...
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Page 2: Installation
Read and Follow all the Safety Rules and Instructions before operating this Appliance. Installer/Customer Responsibilities • Installation and Service must be performed by a Girard Products recommended installer, service agency or gas supplier. • Do not attempt installation as a do-it-yourself project. -
Page 3: Specifications
• If you cannot reach a certiied service technician or gas supplier, contact the nearest ire 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. -
Page 4: Critical Installation Warnings
CRITICAL INSTALLATION WARNINGS • 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 recreational vehicles (RV’s). RV’s are recreation vehicles designed as temporary living quarters for use as recreation, camping, or travel having their own power or towed by another vehicle. - Page 5 • Installation and Service must be performed by a Girard Products LLC recommended installer, service agency or gas supplier. The following instructions apply to the most common type of installation for Girard Products GSWH-2 Water Heater. Consult with Girard Products Technical Support or Engineering department if you have any additional questions regarding your speciic installation/application.
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Page 6: Select A Suitable Location
2” X 2” elements. (Figure 1) The rough opening for the GSWH-2 should be 13” X 13” with right angle corners. The exterior wall opening must be the same dimensions with no radius corners. -
Page 7: Water Heater Installation
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. Partially insert the water heater into the opening and connect both Hot and Cold water lines to the appropriate ½” NPT ittings. - Page 8 A: Installation of Water Heater with Separate Flange Note: For installation of water heater with Integral Flange proceed to section B: 1. Complete the “skin” application to the vehicle’s outer wall. 2. Position water heater housing into the frame opening with the front edge aligned evenly to the exterior wall (See Figure 3).
- Page 9 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 heater. 2. Position the water heater so that the front edge extends from the opening approximately 2” and insert the door lange into the housing.
- Page 10 2. Determine location for the User Control Panel (UCP – Figure 5) inside the RV. Drill a ¾” hole and then run 2 – 18 gauge wires from the rear of water heater to the ¾” hole (maximum wire length is 16’ or 5M). Connect the 2 wires to the User Control Panel 2 wires and to the 2 wires on rear of water heater (UCP wires are Blue or Blue/ Green).
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Page 11: Door Installation
Water Heater and may cause a hazardous condition. The door of the GSWH-2 water heater is hinged on the left side of the mounting lange and swings open from the right (See Figure 6 below). The latch must secure the door closed at all time during operation. -
Page 12: Operation
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. The Girard Products model GSWH-2 introduces a new generation of smart tankless water heater designed speciically for Recreation Vehicles (RV). Its coniguration and size are consistent with the tank based RV water heaters currently in use and is designed for OEM’s and after- market use by the RV industry. - Page 13 3. Verify that the blower is operating and supplies the air low needed to maintain clean combustion. 4. Open the gas control and light the burner according to the procedure required by the safety standard. 5. Adjust the gas low to reach and maintain the desire temperature set by the user 6.
- Page 14 B. Water Control Valve Flow Optimization (optional) The Water Control Valve of the GSWH-2 provides good control of the outlet temperature within a wide range of inlet water temperatures as are normally encountered in Recreational Vehicles. The unit is shipped with the Water Control Valve set at fully open/maximum low.
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Page 15: Operating Procedures
It is dangerous to operate a Tankless Water Heater unattended. This may occur accidentally if a suficient leak develops in the water system or if a faucet is left open. For this reason The GSWH-2 will automatically turn off after operating for 20 minutes and displays Error “En” on the Display. -
Page 16: Important Notice
Antifreeze Device If you wish to operate the water heater in potentially freezing conditions the model GSWH-2 has a built in thermostat that will start the burner whenever the temperature of the Heat Exchanger falls below 38ºF and will automatically shut off when it senses a temperature in excess of 58 º... - Page 17 E: Replacement Parts: Components Description Photo Description Photo Pressure Relief Valve Shell Top Direction Tube Proportional Pressure Valve (Gas Valve) Relief Valve Valve Water Pipe Bracket Assembly Power switch & Fuse Flow Switch Inlet holder Assy External Fuse10A Filter Screen Inlet Controller Dust Cap: Bracket...
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Page 18: Replacement Parts: Door Kit
Door Latch Spring F: Troubleshooting If a failure were to occur in the GSWH-2 it will be detected by the Controller Module and the speciic cause will be indicated by the Error Code on the User Control Panel display. E0: Water Outlet Temperature Probe failure. - Page 19 The most common are: • Lack of Gas in the tank • Faulty Igniter • Faulty Igniter connections • Improper distance between the Igniter and the Burner • Accumulated dirt or obstruction between • Igniter and Burner • Low Gas Inlet pressure E2: Flame sensing interrupted during normal operation.
- Page 20 Functional Diagram of the Water Heater Figure 10 Wiring Diagram of the Electrical Connections within the Unit 2 Black 1 Red 2 Black 1 Red Ignition pin Flame sensor/Red 5 Yellow 4 Yellow Wind pressure switch 3 Black Water flow sensor Motor plug 1PIN: FG(Feedback) 1 Red...
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Page 21: Exploded View Of All Of Components
Exploded view of all of Components Figure 12 P a g e... -
Page 22: Maintenance
Wiring errors can cause improper and dangerous operation. Verify proper operation after servicing We recommend that the GSWH-2 water heater be inspected monthly by the user and at least once a year by a Girard Products LLC recommended service technician. - Page 23 3. Insects, including mud wasps and spiders, can build nests in the Exhaust Tube Outlet which will affect the performance of the unit. Inspect the Flue Outlet Tube to make sure that It is unobstructed and that the screen is clean.
- Page 24 5. Provide the Service Center with purchase documentation for your Girard Water Heater. The Girard Products GSWH-2 Water Heater is designed for use in recreation vehicles for the purpose of heating water as stated in the “rating plate” attached to the water heater. Any other use, unless authorized in writing by the Girard Products Engineering Department, voids the warranty.
Need help?
Do you have a question about the GSWH-2 and is the answer not in the manual?
Questions and answers
Should this water heater be bypassed when I sanitize the water system?
No, the Girard Products GSWH-2 water heater should not be bypassed. The very small amount of water in the heat exchanger does not require a bypass, and bypassing is not recommended.
This answer is automatically generated
Hello, This is my first winter with your tankless water heater, I switched from a Truma AquaGo. I was warned that it wouldn't work as well in the winter for the shower which is fine and I have noticed the difference. The water running from the shower will run max 97-101F. Lately though, I have noticed it won't work for all my faucets and was curious if that is something I can fix? Today, the water heater kicks on when running the shower and sometimes the bathroom faucet. It does not kick on at all for the kitchen faucet. This can vary though, sometimes the bathroom faucet won't get warm and the kitchen will. Any troubleshooting ideas would be greatly appreciated! Thank you!!
To troubleshoot and improve water temperature and performance for all faucets on the Girard Products GSWH-2 tankless water heater, follow these steps:
1. Check Electrical Supply: Ensure a stable power supply of 11.5 volts on a 10-amp fused line to the water heater.
2. Verify Gas Pressure: Confirm that the gas pressure to the water heater is between 11 to 12 WCI, with half of the LP appliances running.
3. Optimize Water Control Valve: If the inlet water temperature is extremely cold (below 45°F), adjust the water control valve as needed for better performance.
4. Adjust Hot Water Flow: Fine-tune the hot water flow at the faucet for optimal temperature output.
5. Inspect Installation: Verify that the mounting holes in the door flange align with those in the water heater housing. Secure the door flange to the housing using pop rivets if necessary.
6. Perform Functional Tests: Follow the functional tests outlined in the manual to ensure proper operation after troubleshooting.
These steps should help achieve and maintain the desired hot water temperature effectively.
This answer is automatically generated
I have set my temperature to 102. It does not stop there but goes to a much hotter temperature and I have to feed in cold water, which causes the to go up and down between hot and cold. It did not do this when I first got it. I have turned it off and on both inside and outside in an effort to reset but to no avail. Any Ideas?
. My 10 amp fuse blows as soon as I turn on the water heater. I checked with the voltage meter I have 12.71 is that too much power and how do I reduce it to 11.5 and do you think that is the reason that’s blowing?
Where is the closest Girard service center to Ashland MS 38603 for tankless water heater leak?
what does the green indicator light on the c/f mean