Honeywell WV4262B Installation Instructions Manual

WV4262B Powered Damper
Water Heater Controls
APPLICATION
The WV4262B Water Heater Control System is
designed for power damper water heater applications.
The WV4262B provides these features:
• Gas regulation and manual valve features
• Intermittent spark-to-pilot ignition
• Flame supervision using flame rectification
sensing through the spark rod. This flame sense
circuit uses patented technology to create a
robust sensing signal that is independent of AC
line polarity and appliance earth grounding.
• Water temperature sensing using solid state
sensors potted in a submersion well assembly
• Manually resettable High Temperature Cutout
(TCO)
• Damper motor control with position sensing
• Variable resistance flammable vapor sensor with
a sensing and control algorithm to provide
automatic shutdown when hydrocarbon vapors
such as gasoline are detected
• Retains up to 10 fault code histories in non-
volatile memory (available through the
EnviraCOM™ communication port)
• Solid state setpoint adjustment over a factory
preset temperature range using a linear
potentiometer to provide high resolution
adjustment
Special control features are available to address
items such as stacking. See a Honeywell Product
Specialist for more information.
The specific application of the WV4262B System is
the responsibility of the appliance manufacturer. See
the Specifications below for temperature ranges and
regulator types. The WV4262B system refers to the
combination of the valve and the electronic control
module.
INSTALLATION INSTRUCTIONS
SPECIFICATIONS
IMPORTANT
WV4262B Controls provide direct replace-
ment only; do not substitute other models.
Body Pattern: 90 degree with 1/2 in. inlet and 1/2 in.
inverted flare outlet.
Natural gas model has right-hand threaded
inverted outlet.
LP gas model has left-hand threaded inverted out-
let.
Mounting: Mounting in upright position only.
Electrical Tolerences:
Voltage Minimum: 18 VAC RMS, 60 Hz.
Voltage Maximum: 30 VAC RMS, 60 Hz.
Current in Running Mode: 0.3 Amps @ 24 VAC (plus
inducer motor draw)
Current in Idle Mode: 0.3 Amps Max @ 24 VAC
Damper Relay: 24 VAC RMS, 1 Amp Switching Cur-
rent. 75,000 Cycles Life @ max load.
Capacity: See Table 1.
Conversion: Use conversion factors in Table 2 to
convert capacities for other gases.
Regulation Range (Btuh);
With 1/2 in. NPT inlet and 1/2 in. Inverted Flare Out-
let:
Natural Gas:
Minimum: 30,000
Maximum: 100,000
LP Gas:
Minimum: 40,000.
Maximum: 100,000
Inlet Pressure Range:
See appliance rating plate for Inlet Pressure range
recommendation
1/2 PSI (14.0" w. c.) maximum inlet pressure allowed
for proper operation.
Operational Environment:
Operating Ambient Temperature Range:
32 °F to 150 °F (0 °C to 65 °C)*
Shipping and Storage Temperature Range
-20 °F to 120 °F (-29 °C to 49 °C)
* Gas valve regulation range is guaranteed from 32 °F
to 150 °F (0 °C to 66 °C)
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