Instructions / Assembly
61
Installation Checklist
Indoor water heaters must be installed indoors�
Outdoor water heaters must be installed outdoors�
Close to area of ventilation termination  
(indoor models)�
Protected from freezing temperatures�
Proper clearance from combustible material 
observed�
Sufficient fresh air supply for proper operation of 
water heater�
Air supply free of corrosive elements and flammable 
vapors�
Provisions made to protect area from water 
damage�
Sufficient room to service heater�
Combustible materials, such as clothing, cleaning 
materials, and rags, clear of the heater and vent 
piping�
Water heater is properly attached to the wall�
A. Water Heater Location
B. Coaxial Vent (Indoor Models)
Vent pipe material is Category III and is 
manufacturer-approved�
Horizontal vent runs have 1/4 in� per foot of 
DOWNWARD slope towards the vent terminal� 
Vertical venting is installed as described on pages 
44 and 45�
Connector(s) securely fastened together with high-
temperature silicone (500°F [260°C]) and airtight�
All coaxial vent runs are properly installed�
Vent terminal is properly installed�
Maximum vent length is observed�
Water supply has sufficient pressure�
Air has been purged from the water heater and the 
piping�
Water connections tight and free from leaks�
Water filter is clean and in place�
All piping has been assembled as described on 
pages 47 and 48�
Water pipes are insulated and protected from 
freezing, if necessary�
Pressure-relief valve properly installed with 
discharge line running to open drain�
Discharge line protected from freezing, if necessary�
C. Water Supply/Relief Valve
Gas type matches listing on rating plate�
Gas supply pressure is sufficient for the water 
heater�
Gas line equipped with shut-off valve, union, and 
sediment trap as described on page 53�
Approved pipe-joint compound has been used on all 
gas pipe connections�
All connections and fittings have been checked for 
leaks with a soapy water solution�
Gas company inspected installation (if required)�
D. Gas Supply
Supply cord and/or wiring meets all local codes, 
National Electrical Code, ANSI/NFPA 70, in the U�S�, 
or Canadian Electrical Code, CAN/CSA C22�1, Part 
1, in Canada� 
Voltage matches listing on rating plate�
Water heater is properly grounded�
E. Electrical Wiring
Drain hose is attached to the condensate collector, 
and condensate is drained as described on page 37�
F. Condensate
INSTALLATION INSTRUCTIONS
Checklist










