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710 / 710 ASME
On-Demand Water Heater
Installation Manual and Owner's Guide
Gas Tankless Water Heater
710 / 710 ASME Models
Suitable for potable water heating and space-heating *
* Please refer to local codes for space-heating compliance.
FEATURING
• ENDLESS HOT WATER
• ON-DEMAND USAGE
• COMPACT, SPACE SAVING
• ENERGY CONSERVATION
• COMPUTERIZED SAFETY
• NO PILOT LIGHT
• EASY-LINK SYSTEM
WARNING
- Do not store or use gasoline or other flam-
mable vapors and liquids in the vicinity of this
or any other appliance.
- WHAT TO DO IF YOU SMELL GAS
• Do not try to light any appliance.
• Do not touch any electric switch, do not
use any phone in your building.
• Immediately call your gas supplier from a
neighbor's phone. Follow the gas suppli-
er's instructions.
• If you cannot reach your gas supplier, call
the fire department.
- Installation and service must be performed by
a qualified installer, service agency or the gas
supplier.
TM
WARNING
If you have any questions,
Fergus, ON Canada N1M 2X1
Toll Free: 1-888-479-8324
This product must be installed
and serviced by a licensed
plumber, a licensed gas fitter,
or a professional service tech-
nician. Improper installation
and/or operation, or installation
by an unqualified person, will
void the warranty
If the information in these
instructions is not followed
exactly, a fire or explosion may
result causing property dam-
age, personal injury or death.
please call or write to:
GSW Water Heating
599 Hill Street West
320578-000
REV. 00 (11-04)
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Troubleshooting
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Summary of Contents for GSW 710
- Page 1 If the information in these Gas Tankless Water Heater instructions is not followed exactly, a fire or explosion may 710 / 710 ASME Models result causing property dam- Suitable for potable water heating and space-heating * age, personal injury or death.
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Page 2: Table Of Contents
C) Energy Conserving Recirculation: No. 6 and No. 7 710-ASME PARTS LIST ........38 D) Normal Control (Default): No. -
Page 3: Introduction
W 470mm (18.5 in.) × D 226mm (8.9 in.) *This diagram illustrates tankless water heater design con- Ignition Electric Ignition cepts only and is not accurate to the 710’s physical descrip- Supply 120 VAC / 60 Hz tion. Operation 112 W (0.93 A) A hot water tap is turned on. -
Page 4: Installation
INSTALLATION 3. Carefully plan where you intend to install your 710 Water Heater. Please ensure: All gas water heaters require careful and correct installation • Your water heater will have enough combustible air to ensure safe and efficient operation. This manual must be and proper ventilation. -
Page 5: General
Gas and Propane Installation Code. free; regular maintenance is recommended for these When installed, the 710 water heater shall be located in types of environment. an area to maintain the following minimum clearances... -
Page 6: Combustion Air Supply
(50mm (2 in.) conversion kit, please follow all instructions included with the kit. • The 710 must be installed in a location where the proper amount of combustible air will be available to it at all Side times without obstructions. -
Page 7: Venting Connections
• A proper sidewall vent terminator is recommended when for use with Category III or Special BH type gas vent. the water heater is vented through a sidewall. If the 710 2. The manufacturer recommends the “T-Vent” line is converted to a direct-vent unit, a proper sidewall direc-... -
Page 8: Horizontal Installation Diagram
Vertical Installation Diagram General rules for venting the 710 water heater are: Place the water heater as close as possible to the vent terminator. Rain Cap The vent collar of the water heater must be fastened Roof directly to an unobstructed vent pipe. -
Page 9: Vent Clearances
Vent Clearances Canada Direct vent and other than Direct Vent Clearance above grade, veranda, porch, deck, or balcony. 1 foot 30.5cm Clearance to window or door that may be opened 3 feet 91.5cm Clearance to permanently closed window Vertical clearance to ventilated soffit located above the vent termi- nator within a horizontal distance of 2 feet (61cm) from the center line of the terminator. -
Page 10: Gas Connections
710. and/or insufficient gas volume will adversely affect per- 7. Check the inlet gas pressure. When 710 is on a maxi- formance. These pressures are measured when the 710 mum burn, the manometer should read from 5.0” to 10.5”... -
Page 11: Water Connections
ASME code. In addition, a manual shut off valve is also recommended on the hot water outlet of the unit. If the 710 is installed within, or subjected to, a closed loop water system, a thermal expansion tank must be installed. -
Page 12: Remote Controller Connection
To control a recirculation pump, connect the pump Disconnect power supply from the water heater. to the pump connector in the 710 as shown in the diagram Take off the water heater’s front cover. below. (In a multi-unit system, connect the pump ONLY to Please find the remote control terminal using the picture the “PARENT”... -
Page 13: Pump Control Mode
710. will be made to run all the time as long as there is a power supply to the 710. The pump will stop when the remote controller is turned off. Water in the loop will be maintained at set temperature. -
Page 14: Easy-Link System
4. Between the “CHILD-1” and the “CHILD-2”: Connect the “[2] connector” of the “CHILD-1” unit to the “[1] con- The 710 can be connected with other heaters of the same nector” of the "CHILD-2” unit. model with communication cables to work as a multiple 5. - Page 15 Unless you change DIPswitch No. 8 of the If you connect the “[1] (or [2]) connector” “PARENT” unit to “ON”, the system will not of the “PARENT” unit to the “PARENT" work as an Easy-Link system. The units will (or [1]) connector of the “CHILD-1” unit, work as individual units.
- Page 16 • If a remote controller (optional) is used, it has to be con- nected to the “PARENT” unit. If the remote controller is connected to a “CHILD” unit, it will only control that Wrong connection between the “PARENT” particular individual “CHILD” unit and will not control the unit and the “CHILD-1”...
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Page 17: Multi-Unit System For Large Volumes
Multi-unit System For Large Volumes Multi-Unit System Connection Diagram Multi-Unit Controller (TM-MC01) and Temperature Remote Multiple 710 models can be combined for a Multi-Unit sys- Controller (TM-RE30) wiring: tem, along with the Multiple Unit Controller and Remote Controller (Parts TM-MC01 and TM-RE30). Each set of con-... - Page 18 Do not touch the Easy Link connectors. Left bank of DIPswitches The Comunication Cables are included with the 710. The Cables use 18 gauge wire and can be up to 76.2m Right bank of (250 ft.) long. Wire [3] (Male Adapter) and...
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Page 19: Initial Operation
Normal Operation • Flow rate to activate the 710: 1.9 l/min (0.5 GPM (US)) • Flow rate to keep the 710 running: 1.5 l/min (0.4 GPM (US)) Without Remote Controller 1. Open 2. Mix cold water 3. Close the hot water tap. -
Page 20: With Remote Controller Installed
Lamp is OFF to indicate that power is off °F 2. Simultaneously press and hold both the “HOT” and DO NOT set to 85°C (185°F) if you use your 710 in recircula- “COLD” buttons for tion system. Refer to pg. 29. -
Page 21: Flow
• The flow rate through the 710 is limited to a maximum of • The manufacturer also highly recommends the use of a 34 l/min (9.0 GPM (US)). -
Page 22: Maintenance And Service
• If you desire a hot water temperature other than the 8 • Keep the area around the water heater clear. Remove preset settings, please purchase the optional tempera- any combustible materials, gasoline or any flammable ture remote controller (part No. TM-RE30). vapors and liquids. -
Page 23: General Troubleshooting
GENERAL TROUBLESHOOTING Temperature And Amount Of Hot Water PROBLEM POSSIBLE SOLUTIONS It takes long time to get hot • The time it takes to deliver hot water from the water heater to your fixtures depends on water at the fixtures. the length of piping between the two. -
Page 24: Remote Controller: Tm-Re30 (Optional)
TROUBLESHOOTING – ERROR CODES • The 710 units are self diagnostic for safety and convenience when trouble shooting. • If there is a problem with the installation or the unit, it will display a numerical error code on the remote controller (if installed) or on the 7-Seg LED of the central computer board and section computer board to communicate the source of the problem. -
Page 25: Single Unit
Single Unit Easy-Link • The 7-Seg LED displays the 3-digit error codes one digit • The 7-Seg LED on the PARENT unit displays a 5-digit at a time. The remote controller (if installed) displays the number to signify which unit in the Easy-Link system has whole 3-digit error code at once. -
Page 26: Wiring Diagram
WIRING DIAGRAM A wiring diagram is located on the inside front panel of the appliance. Electrical Rating: 120 VAC, 60 Hz. Note: If any of the original wiring supplied with this appliance must be replaced, it must be replaced with appliance wiring material (180c) or its equivalent. -
Page 27: Operating Safety
OPERATING SAFETY FOR YOUR SAFETY READ BEFORE OPERATING WARNING: If you do not follow these instructions exactly, a fire or explosion may result causing property damage, personal injury or loss of life. A. This water heater does not have a pilot. It is equipped with an ignition device that automatically lights the burner. Do not try to light the burner by hand. - Page 28 DANGER Vapors from flammable liquids will explode and catch fire causing death or severe burns. Do not use or store flammable products such as gasoline, solvents or adhesives in the same room or area near the water heater. Keep flammable products: Vapors: Far away from heater Cannot be seen...
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Page 29: Applications
• Dual-set aquastat (recommended w/timer) • Toxic chemicals used in boiler treat- • 710 Pump Control set to “Recirculation Mode” ments such as alcohol, glycerol and The recirculation pump is to provide no less than 7.5 l/min glycol group must not be introduced... -
Page 30: Additional Clearances
Additional Clearances For rooftop terminations Please follow all local and national codes in regards to prop- er termination clearances. In the absence of such codes, the following clearances can be used as guidelines. Local codes supersede these guidelines. For sidewall terminations 6 1 0 m 6 1 0 m ( 2 f t . -
Page 31: Optional Items
4. Direct-Vent Kit: TM-DV32 This kit can be used convert the 710 from a conventional vent system to a direct-vent (or sealed combustion) system. This is a CSA tested conversion kit. Install this conversion kit in accordance with the manufacturer’s installation instructions and any applicable codes. - Page 32 6. Wall thimble with Termination: TK-KPWL4 and TK-KPWH4 These terminations are used when venting out through the wall and are com- patible with the T-Vent pipe system. These terminations are special stainless steel vents for gas appliances and are UL listed as Category II, III and IV. There are two types of terminations: the Louver termination and the Hood termination.
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Page 33: Components Diagram
COMPONENTS DIAGRAM Case assembly 0 5 2 7 0 2 0 5 1 0 5 1 0 0 4 0 5 2 0 0 3 0 5 0 0 0 5 0 0 1 0 1 0 0 1 1 0 0 7 0 5 1 0 5 2... -
Page 34: Computer Board Assembly
Computer board assembly Other than Part # 706, the 710 and the 710 ASME models share the same components. 0 5 2 7 1 6 0 5 2 7 1 5 0 5 2 7 0 8 0 5 2... -
Page 35: Burner Assembly
Burner assembly The 710 and the 710 ASME models share the same components. 1 0 3 1 0 2 1 0 1 4 0 1 1 1 3 1 5 2 1 5 3 7 0 7 1 5 2... -
Page 36: Water Way Assembly
Water way assembly Other than Part# 211, Part# 439, Part# 440 and Part# 441, the 710 and the 710 ASME models share the same compo- nents. T o t h a n g e E x c h H e a t... -
Page 37: 710-Asme
710-ASME... -
Page 38: Parts List
(No.440), connection pipe (No.441) and “flow sen- EW00H Pan screw M4×12 (w/Washer) sor, gas proportional valve connection and thermistors” wire EW00B Screw M3×6 (No.706), all of the 710 ASME’s components are the same as the 710. EW008 Screw M3×10 EZP26 O-ring P26 NBR (Black) - Page 39 Item # Part # Description EKJ02 Water outlet EZN17 O-ring JASO# 1017 FKM EZM18 O-ring P18 FKM EM45E Hot pipe for 710 ASME EM45D Cold pipe for 710 ASME EM45F Connection pipe for 710 ASME EM376 710 PCB EM454 Transformer EM463...
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Page 40: Output Temperature Chart
OUTPUT TEMPERATURE CHART Output Temperature vs. GPM (Max. 9.0 GPM) with Various Ground Water Temperature 10.0 (37.9) (34.1) (30.3) (26.5) (22.7) (18.9) (15.1) (11.4) (7.6) (3.8) F° (40°F) (50°F) (60°F) (70°F) C° 24.2 22.3 20.9 19.4 18.1 17.1 16.1 15.3 14.5 13.2 12.1... -
Page 41: Limited Warranty
INDIRECT CONSEQUENTIAL DAMAGES INCLUDING PROPERTY DAMAGE, PERSONAL DAMAGES, LOSS OF USE, OR INCONVENIENCE. SOME STATES DO NOT ALLOW THE EXCLUSION OR LIMITATION OF INCIDENTAL OR CONSEQUENTIAL DAMAGES, SO THE ABOVE LIMITATION MAY NOT APPLY TO YOU. 2. Warranty (in years) for models: 710, 710 ASME Application Parts... - Page 42 5. THIS WARRANTY WILL NOT COVER THE FOLLOWING: • Any product that is not installed by a licensed plumber, gas installer, or contractor. • Damages due to accidents, abuse, misuse, improper installation, misapplication, or incorrect sizing. • Damages due to fires, flooding, freezing, electrical surges, or any Acts of God. •...
- Page 43 If you have any questions, please call or write to: GSW Water Heating 599 Hill Street West Fergus, ON Canada N1M 2X1 Toll Free: 1-888-479-8324...
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