H.Water Heater Diagnostics
1.Provide internal LED displaying the following water heater status/faults:
a.Steady on – Internal control failure
b.One flash – Air flow fault
c.Two flashes – Erroneous flame signal
d.Three flashes – Ignition lockout
I.Combustion Chamber: The lightweight, high temperature,
J.Venting
1.When routed vertically, the water heater’s flue material and size shall be in accordance with the National Fuel Gas Code, ANSI Z223.1/NFPA 54 latest edition (Category I).
2.When routed horizontally, the water heater(s) flue material and size shall meet or exceed the requirements as specified for Category III in the National Fuel Gas Code, ANSI Z223.1/NFPA 54 latest edition.
3.The water heater(s) shall be TruSeal™ direct vent ready. The water heater(s) shall meet safety standards for direct vent equipment as noted by: the 2006 UMC Section 1107.6; ASHRAE
K.Cabinet
1.The
2.The water heater(s), if located on a combustible floor, shall not require a separate combustible floor base.
3.Combustion air intake shall be on left side of the cabinet.
Specifier Note: The remaining items in this section are options. Delete those that are not being specified.
L.Water Heater Operating Controls
1.The water heaters(s) shall feature an optional controller.
M.Water Heater Pump - Refer to Equipment Schedule
N.Cold Water Run System
1.The water heater(s) shall be configured with a cold water run automatic proportional bypass system that ensures the water heater will experience inlet temperatures in excess of 105ºF to avoid damaging condensation.
2.The cold water run system shall be configured with a variable speed pump that is controlled by a
3.The control shall have a temperature setting DIP switches located on the face of the board. The PID Logic shall be capable of limiting system overshoot on initial
4.The cold water run system shall be shipped loose for field installation.
2.3SOURCE QUALITY CONTROL
A.The water heater(s) shall be completely assembled, wired, and
B.The water heater(s) shall be furnished with the sales order, ASME Manufacturer’s Data Report, inspection sheet, wiring diagram, rating plate and Installation and Operating Manual.
PART 3 - EXECUTION
3.1INSTALLATION
A. Must comply with:
1.Local, state, provincial, and national codes, laws, regulations and ordinances
2.National Fuel Gas Code, ANSI Z223.1/NFPA 54 – latest edition
Project Name / Date | Division 23 52 33.13 - 3 |