Honeywell WV4262B Installation Instructions Manual page 2

WV4262B POWERED DAMPER WATER HEATER CONTROLS
Humidity:
95% Relative Humidity at 104 °F (40 °C).
Approvals:
This device is certified by CSA International to the fol-
lowing ANSI Standards (see report 158158-
1701693): Z21.20, Z21.23, Z21.35, Z21.78, Z21.87,
and Z21.94
Dimensions
See Fig. 2.
Accessory Parts (Order
Separately)
— Mounting Bracket:
Model
WV4262B
a
Capacity based on 1000 Btu/ft
0.64 specific gravity natural gas at 0.37 kPa pressure drop).
b
Valves are guaranteed at only 77 percent of the rating.
100
90
80
70
60
50
40
30
20
10
0
Fig. 1. Typical capacity curve for WV4262B Family Water Heater Control System.
Gas Type
NG
LP
69-2496—03
Table 1. Capacity of WV4262B.
Size (Inlet x Outlet),
in.
1/2 NPT x 1/2
inverted flare
3
, 0.64 specific gravity natural gas at 1.47 in. wc pressure drop (37.3 MJ/meter
0.8 0.9 0.9
Table 2. Gas Capacity.
Flow (kBTU/hr)
30
50
75
30
50
75
P/N 50044631: 3/4" NPT, 1" insulation, 2"
insertion.
P/N 50044362: 3/4" NPT, 2" insulation, 3"
insertion.
— Pilot Assembly: P/N Q3451A (See a Honeywell
Product Specialist for other options)
— TOD FVS (Therm-O-Disc) Flammable Vapor Sensor
or equivalent. Refer to specific OEM Water Heater
Service Manual for correct selection of sensor.
— See Honeywell product specialist for other
available accessories.
Capacity (at 1.47 in.
a,b
wc pressure drop )
3 3
50 ft /hr (3.7 m /hr) 30 ft
CAPACITY
1.0 1.0 1.1
PRESSURE DROP
Pressure Drop (in. w.c.)
1.43
1.47
1.54
0.91
0.94
0.97
2
Minimum
Regulated Capacity
3 3
/hr (0.6 m /hr) 100 ft
1.1 1.2 1.2
M32315
Maximum
Regulated Capacity
3
/hr (5.1
3
m /hr)
3
,
1.3