Frequent Cycling; Installation; Corrosive Chemicals - Honeywell SmartValve SV9520H Manual

SV9520H SMARTVALVE™ SYSTEM CONTROL LINE VOLTAGE POLARITY SENSE MODELS

Frequent Cycling

This control is designed for use on appliances that
typically cycle three to four times an hour only during the
heating season. In year-around applications with greater
cycling rates, the control can wear out more quickly.
Perform a monthly checkout.
Water or Steam Cleaning
If a control gets wet, replace it. If the appliance is likely to
be cleaned with water or steam, protect (cover) the
control and wiring from water or steam flow. Mount the
control high enough above the bottom of the cabinet so it
does not get wet during normal cleaning procedures.
High Humidity or Dripping Water
Dripping water can cause the control to fail. Never install
an appliance where water can drip on the control.
In addition, high ambient humidity can cause the control
to corrode and fail. If the appliance is in a humid
atmosphere, make sure air circulation around the control
is adequate to prevent condensation. Also, regularly
check out the system.

Corrosive Chemicals

Corrosive chemicals can attack the control, eventually
causing a failure. If chemicals are used for routine
cleaning, avoid contact with the control. Where chemicals
are suspended in air, as in some industrial or agricultural
applications, protect the control with an enclosure.
Dust or Grease Accumulation
Heavy accumulations of dust or grease can cause the
control to malfunction. Where dust or grease can be a
problem, provide covers for the control to limit
contamination.
Heat
Excessively high temperatures can damage the control.
Make sure the maximum ambient temperature at the
control does not exceed the rating of the control. If the
appliance operates at very high temperatures, use
insulation, shielding, and air circulation, as necessary, to
protect the control. Proper insulation or shielding should
be provided by the appliance manufacturer; verify proper
air circulation is maintained when the appliance is
installed.
Line Voltage Power Supply
WARNING
Electrical Shock Hazard.
Can cause serious injury or death.
Disconnect power supply before installation.
More than one disconnect may be necessary.
Connect the appliance chassis to earth ground. Make
sure the 120 Vac neutral line and earth ground are
electrically common at the breaker box.

INSTALLATION

When Installing this Product...
1. Read these instructions carefully. Failure to follow
them could damage the product or cause a
hazardous condition.
2. Check the ratings given in the instructions and on
the product to make sure the product is suitable for
your application.
3. Installer must be a trained, experienced service
technician.
4. After installation is complete, check out product
operation as provided in these instructions.
WARNING
Fire or Explosion Hazard.
Can cause property damage, severe injury
or death.
Follow these warnings exactly:
1. Disconnect power supply before wiring to
prevent electrical shock or equipment damage.
2. To avoid dangerous accumulation of fuel gas,
turn off gas supply at the appliance service
valve before starting installation, and perform
Gas Leak Test after completion of installation.
3. Always install a sediment trap in gas supply
line to prevent contamination of ignition system
control.
CAUTION
Equipment Damage Hazard.
Improper wiring can damage thermostat
or transformer.
Never apply a jumper across or short the
thermostat, 24V hot or 24V common terminal in
the SV9520 wiring harness. This can burn out the
heat anticipator in the thermostat or damage the
system transformer.
Follow the appliance manufacturer instructions if
available; otherwise, use these instructions as a guide.
Converting Ignition System Control from
Natural Gas to LP Gas Application
(or LP Gas to Natural Gas Application)
WARNING
Fire or Explosion Hazard.
Can cause property damage, severe injury
or death.
Always change the main burner orifices when
converting from natural to LP gas or from LP to
natural gas. Follow appliance manufacturer
specifications and instructions.
Ignition system controls are factory-set for natural (and
manufactured) or LP gas. Do not attempt to use an
ignition system control set for natural (manufactured) gas
on LP gas, or an ignition system control set for LP gas on
natural (manufactured) gas.
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