4
18-HD68D1-3
CAUTION: EQUIPMENT DAMAGE HAZARD - Improper
wiring can lead to equipment damage. Follow the terminal
connection information carefully to ensure the control is
wired properly. After wires are secure, bare wires
MUST NOT touch each other. See the Field Wiring Dia-
grams for specific system applications.
▲
CAUTION
!
Attach base to wall using four screws provided. Do
not overtighten.
Wires may enter the Relay Panel through openings
on each corner and at the center of each side.
Necessary wire lengths should be considered when
determining entry points.
▲
WARNING
!
LIVE ELECTRICAL COMPONENTS!
During installation, testing, servicing, and troubleshoot-
ing of this product, it may be necessary to work with live
electrical components. Failure to follow all electrical safety
precautions when exposed to live electrical components
could result in death or serious injury.
Aux2
Relay Panel
Bitmaster
Comm
HV
AC System
Sensor
s
Thermostat
Outdoor
Remot
e
Data
Hot
Com
D R B
Indoor
RS
RS
ODT
ODT
24
Va
c
Only
24
Va
c
Only
24
Va
c
Only
Aux2
Aux1
Aux1
Hum
Hum
BK PWM
Fan
G
W3 Stg3
W2 Stg2
W1 Stg1
Y1 Stg1
Y2 Stg2
0 SOV
NORM
Dual Fuel
Switch
DUAL
Relay Pane
l
1/8” for screws
into studs
3/16” for drywall
anchors
DRILL HOLES
Wires may
enter at
any of 8
locations
Mounting to studs: Drill 1/8” pilot holes in the four
locations marked above.
Mounting to drywall:
If mounting to drywall with no studs behind it, en-
large pilot holes to 3/16” for anchors (included with
the relay panel).
Gently tap anchors into the holes.
Mount Panel
General Wiring Information
3
4
