Mounting The Controller; Wire Colors - heat-timer DiGi-SPAN Elite Series Installation And Operation Instructions Manual

Mounting the Controller

• T he SPC DIGI-Elite is designed to mount on a 1900 (4"x4")
electrical box.
• I f the SPC-Elite is to be panel mounted, or if additional
room is needed use the Plastic Wiring Enclosure (HT#
929135-00 Switch) or (HT# 929137-00 without a Switch).
• L ocate the SPC-Elite in a convenient location near the unit
to be controlled.
• P artially unscrew the Display Cover Mounting screws. This
allows for its removal.
• L ifting the Display Section away from the base will unplug
the Connection Socket from the Base section.
• P roceed with the power and output wiring instructions.
• M ount the SPC-Elite away from excessive heat or cold.
Ambient operating temperature is from 20 to 120°F.
• M ount Display Section back to the Base Section. Tighten
the Display Cover Mounting Screws.
Wiring Power Input
The SPC-Elite is designed to accept ONLY A SINGLE POWER SOURCE. It can be wired to either
120VAC using the two Black wires or 24VAC using the right most two terminals on the terminals block
on bottom of the control. Heat-Timer recommends the installation of a Surge Suppressor and a Power
Switch before the Power Line connection for safety and ease of service.
120VAC
• A ttach line voltage, 120VAC, to the two Black wires extending from the back of the SPC-Elite.
Remember to use the power line from a different source than the equipment being controlled.
24VAC
• U se a dedicated transformer with at least a 5VA output.
• B ring 24VAC to the two right most screws on the front of the SPC-Elite marked 24VAC and COM.

Wire Colors

• T he SPC-Elite has a S.P.D.T. (single-pole double-throw) relay output rated
at 6A, 1/8 HP.
• T he outputs are dry contacts only. They do not source any power.
• T he Red wire is the relay Common.
• T he White wire is the N.O. (normally open) relay contact.
Wiring Input Terminals
Based upon the options selected from the Sensor Type in Startup
menu, the sensor input terminals will vary. The SPC-Elite will only
measure the terminals used for the specific sensor type. All other
sensor terminal inputs will be ignored. i.e., if the SPC-Elitewas set to
measure Temperature 250˚F, it will only measure terminals T1, COM.
See "Sensor Type Settings and Terminals" on page 6
Input Terminals
T1 COM T2 COM T3+ T3- EXT+ EXT- P+ P- COM 24VAC
2
Display Section
Connection
Socket
Display Cover
Mounting Screws
The SPC-Elite can accept only one source of
power: 120VAC or 24VAC. If more than one power
source is applied, the unit may be damaged.
SYSTEM =
TARGET =
Decrease Increase
SET
T1 COM T2 COM T3+
Temperature Sensor Enable/Disable
Base Section
Base Mounting Holes
®
SYSTEM = 147
TARGET = 150
OUTPUTS
Decrease Increase System
Input Terminals
24VAC optional
SET
power input
T1 COM T2 COM T3+ T3- EXT+EXT- P+ P-
120 VAC
Optional Power
WARNING
®
o
147 F
o
150 F
OUTPUTS
System
T3- EXT+EXT- P+ P- COM24VAC
Blue (N.C.)
Red (COM)
Normally Closed (N.C.)
Switch
Deactivated when relay
Normally Open (N.O.) is Energized
Activated when
relay is Energized
o
F
o
F
®
SYSTEM = 14
COM24VAC
TARGET = 15
OUTPUTS
Decrease Increase Sy
SET
24 VAC