Heater Option; Installation And Operation - Honeywell SPM Technical Handbook

mounted in a local or remote location when a wall mount
configuration is not feasible. The kit contains four pole
clamps, eight flat washers and eight screws.
3 cm
Caution
For safe, reliable monitoring operation, use the
pole clamps for mounting only on horizontal
poles. Attachment to vertical poles, while
mechanically possible, will not hold unit securely
in position.
The pole center lines are to be 19 cm (7-1/2 inches)
apart. As the pole clamps allow some limited flexibility in
diameter of pipe or tubing, the size and type of mounting
poles are to be determined by the installer.
After the pole clamps have been fastened to the
enclosure, the unit must be secured to an acceptable
fixture. Make sure the installation conforms to the local
wiring/installation code.

5.9 Heater Option

The heater option allows the SPM to operate from -20°C
to +40°C (-4°F to +104°F) ambient. The thermostatically
SPM Technical Handbook
21 mm
SPM Single Point Monitor
controlled heater functions automatically whenever the
unit is connected to an AC source. The heater operates
directly from the line cord independent of the main unit
power switch.
When the heater option is installed, the front panel has
two amber neon lights mounted on the left side below
the Chemcassette
®
The Power In LED (80) glows when the unit is receiving
power. It shows that power is available to be automatically
applied to the heater if required. The Power In LED (80)
does not indicate that the SPM is monitoring. The main
power switch (8) must be on to activate the SPM for
monitoring which will be indicated by the green system
status LED (9).
The Heater On LED (81) glows when the heater is
operating and the internal temperature is less than
+10°C (+50°F).

5.9.1 Installation and Operation

The SPM should be plugged into an AC voltage source
at all times to allow a constant temperature to be
maintained in the unit.
For initial installation, a warm-up time of up to one hour
may be required before monitoring. This warm-up time
will vary with the ambient temperature. Set the main
power switch (8) off and observe that the Power In LED
(80) is lighted. If the Heater On LED (81) is not lighted,
the main power switch can be switched on to begin
monitoring.
5-13
holder.