TK 56701-1-IM-EN
75
S-2 + S-2 Installations
IIm
mp
po
orrtta
an
ntt:: Safety precautions must be followed. Refer to U
Un
niitt IIn
nsstta
alllla
attiio
on
n H
Ha
azza
arrd
dss located in the S
Sa
affe
etty
y P
Prre
ecca
au
uttiio
on
nss
section of this manual before proceeding.
IIm
mp
po
orrtta
an
ntt:: For the system to operate correctly:
•
All Z
Zo
on
ne
e O
On
ne
e harnesses at the condensing unit must be connected only to the Z
Zo
on
ne
e O
On
ne
e evaporator.
•
All Z
Zo
on
ne
e T
Tw
wo
o harnesses at the condensing unit must be connected only to the Z
Zo
on
ne
e T
Tw
wo
o evaporator.
N
No
otte
e:: Superlube (203-524 or equivalent) must be applied to all electrical connections.
R
Re
effe
err tto
o tth
he
e iillllu
ussttrra
attiio
on
n o
on
n tth
he
e ffo
ollllo
ow
wiin
ng
g p
pa
ag
ge
e..
1. E
EV
VA
AP
PO
OR
RA
AT
TO
OR
R H
HA
AR
RN
NE
ES
SS
SE
ES
S - Attach the 6 pin connectors to the correct (Zone One or Two) mating connectors at
the back of condensing unit ((D
De
etta
aiill A
A)).
2. Attach the 2 pin connectors (FM1, CH1 and FM2, CH) to the correct (Zone One or Two) mating connectors at the back
of the condensing unit ((D
De
etta
aiill A
A)).
ZONE ONE
ZONE TWO
FM1A, CHF-1
FM1B, CHF-2
FM2A, CHF-3
FM2B, CHF-4
3. Route each harness to terminal block of correct (Zone One or Two) evaporator.
a. Cut wires (HGS, SLS, LLS, FM1, FM2, SC, DH, CH1 and CH) to length, strip 7 mm (0.25 in.) from ends and attach
ring terminals onto CH1 and CH wires and forked terminals on all others.
b. Connect wires (HGS, SLS, LLS, DH, FM1, FM2, and SC) to each terminal block ((D
De
etta
aiill B
B)).
c. Connect wires (CH1 and CH) to the ground stud of each evaporator ((D
De
etta
aiill B
B)).
4. Attach the sensor connectors to the mating connectors located in the correct (Zone One or Two) evaporator ((D
De
etta
aiill
C
C))
a. Coil Temperature Sensor (CTN, CTP)
b. Discharge Air Temperature Sensor (DTN, DTP)
c. Return Air Temperature Sensor (RTN, RTP)
IIm
mp
po
orrtta
an
ntt:: Gold terminal pins supplied in installation kit must be used if sensor harnesses are cut to length.
5. Connect the IIN
NT
TE
ER
RC
CO
ON
NN
NE
EC
CT
T H
HA
AR
RN
NE
ES
SS
S to the first evaporator (of two) in the same zone ((D
De
etta
aiill B
B)).
a. Connect wires (FMA-2, FMB-2, HGS, LLS, SLS, SC and DH) with forked terminals to terminal block on first
evaporator.
b. Connect (CH) wire with ring terminal to ground stud of evaporator.
6. Route the IIN
NT
TE
ER
RC
CO
ON
NN
NE
EC
CT
T H
HA
AR
RN
NE
ES
SS
S to the second evaporator (of two) in the same zone ((D
De
etta
aiill B
B)).
a. Cut wires ((FMA-2, FMB-2, HGS, LLS, SLS, SC, DH and CH) to length, strip 7 mm (0.25 in.) from the ends and
attach a ring terminal onto the CH wire and forked terminals on all others.
b. Connect wires (FMA-2, FMB-2, HGS, LLS, SLS, SC and DH) to terminal block on evaporator.
c. Connect wire (CH) to ground stud of evaporator.
7. Secure all harnesses with adequate clamps or ties approximately every 600 mm (24 in.).
