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4
Heat-Timer Corp.
Program Switch to restrict access to
function changes. This switch is
covered with the Wiring Enclosure.
OUTPUT RATINGS:
120VAC, 6A RESISTIVE
1A PILOT DUTY, 15A TOTAL
FOR ALL CIRCUITS
INPUT RATINGS:
115VAC 60Hz , 12VA MAX
USE COPPER CONDUCTORS ONLY
MANAGEMENT
120VAC Power
System Output controls
pumps, valves, or other
system components.
MInI-Mod-cnc layout
The digital display shows the System and Outdoor temperatures,
the lead stage and lead group <<in brackets>>, and the status of
each stage. To view and adjust settings, press the appropriate buttons.
LED indicates the
associated relay status.
ENCLOSED
ENERGY
CAUTION
: RISK OF ELECTRIC SHOCK
More than one disconnect switch may be required
EQUIPMENT
99RA
to de-energize the equipment before servicing.
Four N.O. Boiler startup relay
outputs. Each is wired in series
with each boiler's limit circuit.
Four modulation outputs can be 0-5V,
0-10V, 1-5V, 2-10V, or 4-20ma. Go to
Startup Menu to determine the type of
Mini-MOD-CNC
Condensing / Non-Condensing Control
SYSTEM
25
o
OD=
F
A
B
<<A>>
C
100%
D
PROGRAM
RUN
When connecting Outdoor and System
Sensors, no Polarity is observed.
Prove terminals must be connected for
the Mini-Mod-CNC to operate the boilers.
output for each stage.
Button functions are presented on
Bottom Row of display.
145
o
SYS=
F
B
<C>
D
52%
---
---
DO NOT APPLY ANY VOLTAGE
TO INPUT TERMINALS
Connect Extension panels to
add additional stages using
a phone style cable (cable
provided with Mini-Extension).
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