MASTERTEMP
125 Pool and Spa Heater Installation and User’s Guide
P/N 475114 Rev. F 9/2020
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GENERAL SPECIFICATIONS
NOTICE:
• Combustion air contaminated by corrosive chemical fumes can damage the heater and will void the warranty.
• The Combination Gas Control Valve on this heater differs from most appliance gas controls. If it must be replaced,
for safety reasons replace it only with an identical gas control.
• The access door panels must be in place to provide proper ventilation. Do not operate the heater for more than five (5)
minutes with the access door panels removed.
• This heater is designed and certified by CERTIGAZ as complying with the Standard for Gas Fired Pool Heaters, and is intended
for use in heating fresh water swimming pools or spas.
• The heater is designed for the heating of chlorine, bromine or salt system swimming pools and spas. It should
NOT
be
used as a space heating boiler, or general purpose water heater. The heater requires an external
240 VAC
single-phase
electric power source.
• The heater should be located in an area where leakage of the heater or connections will not result in damage to the
area adjacent to the heater or to the structure. When such locations cannot be avoided, it is recommended that a
suitable drain pan, adequately drained, be installed under the heater. The pan must not restrict air flow.
• The heater may not be installed within 1.5 M (5 ft.) of the inside surface of a pool or spa unless it is separated by a solid
fence, wall or other permanent barrier.
CONSUMER INFORMATION AND SAFETY
(CONTINUED)
WARNING
The Consumer Product Safety Commission warns that carbon monoxide is an “invisible killer”. Carbon monoxide is a
colorless and odorless gas.
1. Carbon monoxide is produced by burning fuel, including natural gas and propane.
2. Proper installation, operation and maintenance of fuel-burning appliances in the home is the most important
factor in reducing carbon monoxide poisoning.
3. Be sure that fuel burning appliances such as heaters are installed by professionals according to manufacturer’s
instructions and codes.
4. Always follow the manufacturer’s directions for safe operation.
5. Have the heating system (including vents) inspected and serviced annually by a trained service technician.
6. Examine vents regularly for improper connections, visible cracks, rust or stains.
7. Install battery-operated carbon monoxide alarms. The alarms should be certified to the requirements of the
most recent UL, CE, IAS, CSA and IAPMO standard for carbon monoxide alarms. Test carbon monoxide
alarms regularly and replace dead batteries.
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Warning and Safety Instructions
