10
h
Igh
v
oltAge
C
onneCtIons
Route power supply and ground wires through the high volt-
age port and terminate in accordance with the wiring diagram
provided inside the black plastic cover over control box.
CAUTION
• p
reCAutIons
to
be
tAKen
for
power
supply
wIrIng
.
w
hen
usIng
strAnded
wIres
,
mAKe
sure
to
use
A
round
CrImp
-
style
termInAl
for
ConneCtIon
to
the
power
supply
termInAl
bloCK
.
p
lACe
the
round
CrImp
-
style
termInAls
on
the
wIres
up
to
the
Covered
pArt
And
seCure
In
plACe
.
Round crimp-style
terminal
Stranded wire
Flat washer
Good
Flat washer
Flat washer
Screw
Screw
Screw
Round
crimp-style
terminal
Round crimp-
style terminal
Round crimp-
style terminal
A
Wrong
Arrow view
A
• w
hen
ConneCtIng
the
ConneCtIon
wIres
to
the
termInAl
bloCK
usIng
A
sIngle
Core
wIre
,
be
sure
to
Curl
the
end
of
the
leAd
.
I
mproper
worK
mAy
CAuse
heAt
And
fIres
.
Good
Wrong
Good
Wrong
Excessive strip length
may cause electric shock
or current leakage.
Strip wire end
to this point.
• u
se
the
followIng
method
when
InstAllIng
A
sIngle
Core
wIre
.
Flat
washer
Screw
A single core wire
B
Arrow view
B
•
Make sure to apply the rated voltage of 208/230V for the
unit.
•
A power circuit (see the following table) must be provided
for connection of the unit. This circuit must be protected
with the required safety devices.
•
When using residual current operated circuit breakers, be
sure to use a high-speed type (0.1 seconds or less) 200
mA rated residual operating current.
•
Use copper conductors only.
•
Use insulated wire for the power cord.
•
Select the power supply cable type and size in accor-
dance with relevant local and national regulations.
MODEL NAME
Phase
and fre-
quency
Voltage
MCA
(Min.
circuit
amp.)
MOP
(Max.
overcur-
rent
protective
device)
Transmis-
sion line
selection
DX17VSS181AA
1 Phase
60Hz
208/230V
12.7 A
15 A
18 AWG
(typical)
DX17VSS241AA
17.4 A
20 A
DX17VSS301AA
22.7 A
25 A
DX17VSS361AA
22.7 A
25 A
l
ow
v
oltAge
C
onneCtIons
The unit is designed to work as part of a fully communicating
HVAC system, utilizing a ComfortNet™ CTK04 thermostat,
ComfortNet compatible indoor unit, and up to four wires. Route
control wires through the low voltage port and terminate in ac-
cordance with the wiring diagram provided inside the top plate.
LOW
VOLTAGE
Tie high voltage wire with
clamp material (accessory)
HIGH
VOLTAGE
Voltage Ports
NOTE:
The communicating thermostat is able to search and
identify the indoor and outdoor units when power is applied to
the system. Refer to the communicating thermostat’s instal-
lation instruction manual for more information.
Connect low voltage communication wires (1, 2) to low volt-
age pigtail provided.
C
ommuniCation
W
iRing
NOTE:
A removable plug connector is provided with the
control board to make thermostat wire connections. This
plug may be removed, wire connections made to the plug,
and replaced. It is STRONGLY recommended that you do not
connect multiple wires into a single terminal.
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