Part 11 - Final Installation Checklist - Westinghouse WGRT 150 Series Installation Start-Up Maintenance Parts

Residentialtankless water heater
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PART 11 – FINAL INSTALLATION CHECKLIST
Is there enough space to ensure proper installation?
Does installation location allow for proper service clearances?
BEFORE
Are water and gas lines properly sized and set at proper pressures for the installation?
INSTALLING
Is water heater location as near the exhaust vent / intake pipe terminations as possible?
Have combustible materials been cleared from the installation location?
Is there a drain close to the water heater?
Does water heater loop piping meet the minimum sizing requirements listed?
NOTE: Smaller piping will cause performance problems.
Has water chemistry been checked?
INSTALL WATER
Does water chemistry meet requirements?
PIPING
If water chemistry does not meet requirements, have treatment measures been put in
place?
Has the system been cleaned and flushed?
Has the water heater been vented with the approved materials listed in this manual (3"
PVC, CPVC, Polypropylene, etc.) or to meet local codes?
Is air supply sufficient for proper water heater operation?
Is total vent piping length within the maximum vent length restriction listed in this manual?
Have venting lengths been minimized?
INSTALL EXHAUST
Are terminations properly spaced from windows, doors, and other intake vents?
VENT AND INTAKE
Have all vent terminations been installed at least one foot above exterior grade and one
PIPING
foot above normal snow accumulation level?
Is vent piping properly supported?
Has vent piping been checked for leaks?
Has the exhaust vent line been pitched back to the water heater at a rate of ¼" per foot?
Have the exhaust vent and intake pipes been properly installed into the connectors
provided on the water heater?
INSTALL
Have all condensate line components included with the water heater been installed?
CONDENSATE
Is the condensate line piped with the approved materials listed in this manual?
PIPING / TUBING
Has the condensate line been routed to a laundry tub or other drain?
AND COMPONENTS
Is the gas supply line a minimum of ¾" in diameter?
Is the gas supply line length and diameter adequate to deliver the required BTUs?
INSTALL GAS
Has gas supply line pressure been measured?
PIPING
Does the gas type match the type indicated on the water heater rating plate?
Has a union and shut-off valve been installed?
Have you installed approved pressure relief valves on the hot water outlet near the water
PRESSURE RELIEF
heater?
VALVES
Is the pressure relief valve in the DHW line at least ¾" in diameter?
Connect the power and control wiring per water heater wiring diagram, this manual.
WIRE THE WATER
Have all DIP switches been set on the main water heater board?
HEATER
Is electrical connection polarity within water heater requirements?
Do power specifications meet water heater requirements? 120V AC?
Has the water heater been started?
If necessary, has the water heater gas valve been adjusted?
START-UP,
Has the installation been customized per installation location requirements?
ADJUST, AND TEST
Have all customized system parameters been tested?
Has proper water heater operation been confirmed?
Has the burner flame been checked?
Is the burner flame a proper blue color?
BURNER FLAME
If the flame does not appear normal, it may need to be cleaned by a qualified service
technician. See Figure 55 for flame sight glass window location.
FINAL
INSTALLATION
APPROVALS
Table 33 – Final Installation Checklist
SIGNED BY TECHNICIAN
63
YES
NO
DATE
WHL-004 REV. 5.26.17

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