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Power Supply Dedicated 120 VAC, 60 Hz., 15 A
Current Draw Less than 5 Amps.
Approved Gas Type Natural or Propane. Gas supply must match the gas type listed on the water
heater rating label.
Gas Supply Connection 1" NPT connection to gas valve for 370,000 Btu/hr. and over for natural gas,
¾" NPT for rest. Schedule 40 black iron pipe recommended.
Gas Pressure (Nat. & L.P.) Manifold Pressure: 4.5" w.c. natural gas, 10.0" w.c. L.P. Gas Supply
Pressure: At least 1" above manifold pressure with water heater operating,
14" w.c. maximum.
Venting System Atmospherically Vented, Type B venting system or approved chimney. Follow
current National Fuel Gas Code requirements or in Canada, the Natural Gas
and Propane Installation Code.
Minimum Clearance for Servicing 24" Front Clearance, 20" Top, 6" Sides.
Maximum Water Supply Pressure 150 PSI.
Thermostat Sensor(s) Redundant thermister with 11,900 + or - 0.5% ohms resistance at 70 deg. F.
Sensor inside well for lower sensor. Some models use an additional upper
sensor (w/o well) with same resistance values.
Control Board Honeywell Integrated Control Board for Temperature Control, Flue Damper,
and Ignition Control Functions. Operates on 24 volts AC current from
transformer. Some models use single sensor boards, others use two
sensors.
Control Display Honeywell LCD Control Display with Temperature Setpoint, Format, and Error
Code Display in User Mode, Diagnostic Functions in Service Mode.
Communicates with Control Board.
Transformer 120 VAC Primary, 24 VAC Secondary, 40 VA.
Pilot Intermittent Pilot with Spark Electrode and Flame Sensor monitored by Control
Board.
Flue Damper 24 VAC, 60 Hz., 80 Ma.
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Specifications
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