resideo SmartValve SV9541 Installation Instructions Manual

SV9541, SV9641 SmartValve™
System Controls
APPLICATION
The SV9541 and SV9641 SmartValve™ System Controls
combine gas flow control and electronic intermittent
pilot sequencing functions into a single unit. The Q3450
or Q3480 Pilot hardware supplies the low voltage igniter,
flame sensor and pilot burner. These ignition system
controls provide all gas ignition safety functions by
controlling gas flow, ignition source, and a 120 Vac or
240 Vac combustion air blower. The controls also
monitor the appliance airflow proving switch and limit
string to assure proper appliance operation, and provide
prepurge, postpurge, and timed trial for pilot ignition
with 100 percent shutoff and continuous retry. A
diagnostic LED indicates system status.
These controls communicate directly with an electronic
fan timer (ST9160 Electronic Fan Timer for single stage
applications; ST9162 Electronic Fan Timer for two-stage
applications) in typical forced warm air furnace
applications. They also interface with the 208907
Size
(Inlet x
Model Outlet) (in.)
SV9541 1/2 x 1/2
b,c
3/4 x 3/4
SV9641
a
Capacity based on 1000 Btu/ft
at 0.25 kPa pressure drop).
b
Capacity is reduced by 5 percent when using an outlet screen.
c
Valves are guaranteed at only 77 percent of the rating.
d
Minimum regulation for LP gas is 40,000 Btuh.
Table 2. Gas Capacity Conversion Factor.
Gas Specific Gravity
Manufactured
Mixed
Propane
Table 1. Valve Capacity
AGA Certified Capacity for
Natural Gas
ft3/hr m3/hr
150
300
3
, 0.64 sp gr natural gas at 1 in. wc pressure drop (37.3 MJ/m
Multiply Listed
Capacities By
0.60 0.516
0.70 0.765
1.53 1.62
Terminal Board, providing compatibility with power
stealing thermostats. Or, they directly interface with the
appropriate power supplies and a system thermostat for
additional appliance applications. When controlled
directly by a thermostat, these controls do not provide a
postpurge function, because power to the control is
removed when the thermostat call for heat ends.
The SV9541 and SV9641 Systems are suitable for a wide
range of fan-assisted combustion gas-fired appliances
including furnaces, rooftop furnaces, boilers, unit
heaters, infrared heaters, water heaters and commercial
cooking appliances. The specific application of the
SmartValve™ System is determined by the appliance
manufacturer.
SmartValve™ System controls are available in a range of
valve capacities, see Table 1. (Table 2 provides gas
capacity conversion factors.) The suffix letter indicates
temperature range and regulator type, see Table 3.
a
.
AGA Certified Minimum
Regulation for Natural Gas
ft3/hr
4.2
d
20
8.5
Table 3. Model Number Suffix Letter Designation.
Model No.
Suffix Letter
M
Q
INSTALLATION INSTRUCTIONS
AGA Certified Maximum
Regulation for Natural Gas
m3/hr ft3/hr
200
0.6
415
3
, 0.6 sp gr natural gas
Ambient
Temperature
Range
-40°F to 175°F
(-40°C to 79°C)
m3/hr
5.7
11.8
Pressure
Regulator Type
Standard
Two-stage
69-2012-01