Page 3
Installation
Installation
Installation
Installation
Installation
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Mounting
The SP-33 and SP-33D controls are designed for
mounting indoors, protected from the weather and
with non-condensing humidity. For outdoor use
or in moist environments use a Goldine RE-1
raintight enclosure. Use the mounting screws
supplied or optional mounting bracket (consult IE
factory).
Sensor Mounting and Wiring
To maximize temperature measurement accuracy
securely mount the sensor and then insulate it to
protect it from the effects of ambient temperature.
18 AWG twisted pair wire should be used for
normal indoor runs. Sensor wiring run outdoors
must be rated for outdoor use and ensure that wire
connections are protected from the weather. For
long runs or runs near other electrical wiring use
shielded cable (Belden 8760 for indoor use or
Belden 8428 for outdoor use). Ground the shields
to one of the control's cover screws. If the SW
sensor supplied with the control does not meet
your needs, contact your distributor for informa-
tion on the wide range of interchangeable Gold-
line temperature sensors.
The temperature sensor wires run back to the
control should be connected to the screw termi-
nals labeled "3" and "4". See diagram on page 5.
Power input
The SP-33 and SP-33D controls require power to
operate. Either 24VAC, 24VDC, 115 or 208/
240VAC can be used. Be sure to only power the
control with ONE power input. Connect 24VAC
to the “R” and “C” terminals; 24VDC to the “R”
(+) and “C” (-); 115VAC to the terminals marked
“115VAC” or 208/240VAC to the terminals
marked “240VAC”. Connect grounds to the green
screw provided or use grounding clips (eg Steel
City “Gee clips” or Raco #975). Refer to wiring
diagram below.
{
{
S e n s o r
S e n s o r
S e n s o r
S e n s o r
