INSTALLATION INSTRUCTIONS
34-00019-03
WV8860C Water Heater Controls
APPLICATION
The WV8860 Water Heater Control is designed for use in
Standing Pilot applications using an immersion well for
water temperature sensing. All models of WV8860
include an integrated NTC temperature sensor.
The WV8860 design includes an input for reading an
NTC temperature sensor. The control uses this sensor to
read and capture the temperature profile of surfaces
with maximum temperatures up to 300°F (150°C).
Applications of this feature include characterizing the
water heater combustion chamber temperature during
burner operation to indicate if the burner is operating
properly.
The WV8860 is powered from a thermopile heated by the
standing pilot flame. CS88 pilot assemblies are
designed for use with this control.
The immersion well for sensing water temperature has
matched NTC thermistor sensors. These sensors
provide the fail-safe mechanism through which the
WV8860 can provide both accurate water temperature
control as well as water temperature limit (Temperature
Cut-Out [TCO]) function.
SPECIFICATIONS
IMPORTANT
WV8860 controls provide direct replacement
only.
Pressure Regulator:
The outlet pressure regulator set-
ting is shown on the product label.
Inlet Pressure Range:
See appliance rating plate for inlet pressure range
recommendation.
1/2 PSI (14.0 in. w.c.) maximum inlet pressure
allowed for proper operation.
Body Pattern:
90 degrees with 1/2 in. inlet and 1/2 in.
inverted flare outlet.
Mounting:
Mounting in upright position only.
Control Input:
Voltage Minimum: 350 mV dc, open circuit.
Voltage Maximum: 850 mV dc, open circuit.
Capacity:
See Table 1.
Regulation Range:
Natural Gas:
Minimum: 30,000 Btuh.
Maximum: 85,000 Btuh.
Ambient Temperature Range:
32°F to 150°F
(0°C to 66°C)
Operating Range:
0°F to 150°F (-18°C to 66°C)*
Storage Range:
-20°F to 120°F (-29°C to 49°C)
*Valve will operate at 0°F (-18°C) but valve
characteristics can not be guaranteed until ambient
temperature reaches 32°F (0°C).
Humidity:
95% non-condensing at 104°F (40°C)
Approvals:
This device is certified by Canadian Standards
Association (CSA) to the following standards:
ANSI Z21.20
ANSI Z21.23
ANSI Z21.78
ANSI Z21.87
CAN/CSA-C22.2 No. 199-M89
CAN1-6.6-M78
CSA 4.6
CSA 6.20
Accessory Parts:
Pilot Assembly CS88
Chamber Sensor 50056062-201
