Technical Guide
718444-YTG-E-0613
Johnson Controls Unitary Products 71
Typical DNZ030-060 Cooling Unit with Single Stage Gas Heat 460-3-60 volt Wiring Diagram
LEGEND
ALS AUXILARY LIMIT SWITCH
ASCT ANTI-SHORT CYCLE TIMER (OPTIONAL)
CB CIRCUIT BREAKER
CCH CRANK CASE HEATER (OPTIONAL)
COMPR COMPRESSOR
DM DRAFT MOTOR
EMCB ELEC, MOTOR CONTROL BOARD
GND GROUND
HP HIGH PRESS. SW. OPENS @ 625PSIG (R410A) / 380PSIG (R22)
IDFAN INDOOR FAN MOTOR
LP LOW PRESSURE SWITCH OPENS @ 7 PSIG
LS LIMIT SWITCH
TEMPERATURE CONTROLS
UNIT SIZE DEVICE
OPERATING TEMPERATURE (DEG F)
OPEN +/- CLOSE +/-
2 TUBE
024-036
RS 200 12 --- ---
LS 140 6 110 9
ALS 160 12 --- ---
3 TUBE
024-036
RS 270 12 --- ---
LS 160 6 130 9
ALS 160 12 --- ---
4 TUBE
036
RS 270 12 --- ---
LS 140 6
130
9
ALS 160 12 --- ---
3 TUBE
042
RS 200 12 --- ---
LS 140 6 110 9
ALS 160 12 --- ---
4 TUBE
042
RS 270 12 --- ---
LS 140 6 130 9
ALS 160 12 --- ---
TEMPERATURE CONTROLS
UNIT SIZE DEVICE
OPERATING TEMPERATURE (DEG F)
OPEN +/- CLOSE +/-
3 TUBE
048-060
RS 200 12 --- ---
LS 150 6 120 9
ALS 160 12 --- ---
4 TUBE
042
RS 270 12 --- ---
LS 140 6 110 9
ALS 160 12 --- ---
4 TUBE
048-060
RS 200 12 --- ---
LS 150 6 120 9
ALS 160 12 --- ---
4 TUBE
048-060
RS 270 12 --- ---
LS 175 6 145 9
ALS 160 12 --- ---
5 TUBE
048-060
RS 270 12 --- ---
LS 160 6 130 9
ALS 160 12 --- ---
COOLING UNIT WITH GAS HEAT
ELEMENTARY DIAGRAM
CAUTION - OPEN ALL DISCONNECTS
BEFORE SERVICING THIS UNIT
229/BL
805/BL
205/R
L1
L2
BLK
BLK
OPTIONAL CCH
S/P CONFIGURATION
L1
L2
BLK
BLK
OPTIONAL CCH
D/P CONFIGURATION
107/PR 100/BK
201/BR
281/BR
CONTROL BOX
121/BK 123/BL
126/Y
BK
BR
PR
BK
BK
CCH
NOTES:
1. ALL FIELD WIRING TO BE ACCOMPLISHED FOLLOWING CITY, LOCAL AND/OR
NATIONAL CODES IN EFFECT AT TIME OF INSTALLATION OF THIS UNIT.
2. CAUTION: LABEL ALL WIRES PRIOR TO DISCONNECTION WHEN SERVICING
CONTROLS. WIRING ERRORS CAN CAUSE IMPROPER AND DANGEROUS
OPERTION.IF ANY OF THE WIRE, AS SUPPLIED WITH THE UNIT MUST BE
REMOVED,IT MUST BE REPLACED WITH TYPE 105 DEGREE C, 600 VOLT
WIRE OREQUIVALENT CLEARLY RENUMBERED FOR IDENTIFICATION. VERIFY
PROPER OPERATION AFTER SERVICING.
3. MOTORS INHERENTLY PROTECTED
4. FOR 575 VOLT OPERATION MOVE WIRE 108/PRP TO 575V TAP ON TRANSFORMER T2
AND WIRE 120/BK TO 575V TAP ON TRANSFORMER T2.
5. SEE UNIT NAMEPLATE FOR MAXIMUM FUSE AND/OR CIRCUIT BREAKER SIZE
AND MINIMUM CIRCUIT AMPACITY.
6.
215/R
200/R
CONNECTION DIAGRAM
215/R
205/R
224/R
236/O
205/R
248/O
ALS
RS
LS
244/PR
245/PR
PS
DRAFT
MOTOR
PR BK
P
M
C
GAS VALVE
203/BR
248/O
244/PR
245/PR
RED
BLK
BLU
R
BK
BL
279/W
277/Y
110/BK
202/Y
212/R
201/BR
203/BR
RED
245/PR
248/O
BLU
244/PR
BLK
236/0
BLK
277/Y
279/W
228/BK
803/804
105/BL
BR
PR
202/Y
RC2
GRN
ID_FAN
(LOW)
(LOW/MED)
(MED)
(MED/HIGH)
(HIGH)
BLK
ID_FAN
(LOW)
(LOW/MED)
(MED)
(MED/HIGH)
(HIGH)
GRN
127/PR
136/BK
281/BR
121/BK
BR
PR
OD_FAN
POWER SUPPLY
460/575-3-60
USE COPPER CONDUCTORS ONLY
126/Y
123/BL
BK
105/BL
200/R
107/PR
100/
BK
281/BR
110/BK
212/R
215/R
201/BR
236/O
224/R
200/R
212/R
120/BK
108/PR
T2
575V
120/BK 131/PR
136/BK
131/PR
T2
460V
120/BK
108/PR
136/BK
131/PR
108/PR
107/PR
100/BK
120/BK
121/BK
BK
807/BL
123/BL
105/BL
126/Y
806/BR
203/BR
131/PR
136/BK
PRP
124/BK
127/PR
RED
BLK
BLU
A
B
136/BK
124/BK
110/BK
PRP127/PR
131/PR
TB1
L1 L2 L3
T1 T2 T3
CONTROL BOARD SETTINGS:
COMBUSTION BLOWER POSTPURGE: 30 SEC
INDOOR BLOWER HEAT ON DELAY: 30 SEC
INDOOR BLOWER COOL OFF DELAY: 30 SEC
INDOOR BLOWER HEAT OFF DELAY: FIELD SELECT
STRAIGHT LINE INDICATES SWITCH POSITION
180
120
90
60
229/BL (SEE NOTE 6)
805/BL
228/BK,803/BK,804/BK
227/BK
802/BK
LP
HP
225/Y
800/Y
A2
B7
226/BL
801/BL
202/Y
227/BK
802/BK
LR (SEE NOTE 6)
3
12
807/BL
806/BR
226/BL,801/BL
229/BL,805/BL
(SEE NOTE 6)
ACST
228/BK,803/BK,804/BK
LP
HP
M1AB
PS
ALSLS
GND
CCH
CCH_
GND
LUG
T1
SEC
460/575
C
COMPR
L1 L2
L3
OUTDOOR
FAN
HIGH LIMIT INPUT
ROLLOUT SWITCH INPUT
POWER TO GAS RELAY
COIL
SW1
BLOWER
OFF DELAY
SELECT
60
90
120
180
FS
L1
H-IND
IND
HEAT
COOL
CONT
SPARK
TRANSFORMER
CONTINUOUS
POWER FOR
LOGIC
R
24VAC
Y
C
W1
W2
P1-8
P1-3
P1-5
G
C
JW6 PRESENT
WHEN HIGH
PRESSURE
SWITCH NOT
USED
P1-2
P1-1
P1-4
P1-7
K2
K4
JW6
P1-9
P1-6
PILOT
K7
K7
K5
K5
K6
K6
K3
FLAME SENSE
K1
EMCB
3
8
9
6
7
4
1
2
5
GAS_VALVE
P
M
C
CONT
HEAT
COOL
L1
IND
FS
24VAC
C
R
C
W1
C
Y
G
P1
4
5
6
1
2
3
7
8
9
H-IND
W2
R
Rc
G
Y1
Y2
W1
W2
TH2
TH2 ANT
TH1
TH1 ANT
TC2
TC1
TC2
ANT
AUTO
ON
FAN SWITCH
TC1
ANT
OFF
HEAT
AUTO
COOL
ROOM THERMOSTAT
M
230V
C
L
G
N
1
2
3
4
5
1
1
2
3
4
9
1
DM
M
230V
C
L
G
N
1
2
3
4
5
1
1
2
3
4
1
P
C
24V SEC
75 VA
460/575
T1
3
COMPR
L1
L2
L3
460-3-60
M1_
L1 T1
RC2
4
M1_
L2 T2
M1_
L3 T3
3.2 AMP
CB
RS
CB
123456
575
460
230
230
460
575
T2
575
460
460
575
230
230
T2
575
460
460
575
230
230
T2
M1
TB1AB
ALT
GAS VALVE
PV
MV
PV/MV
848982-UWD-A-0312
M1 CONTACTOR, COMPR. AND OD FAN
ODFAN OUTDOOR FAN MOTOR
PS PRESSURE SWITCH
RC1/RC2 COMPRESSOR START & OUTDOOR FAN RUN CAPACITOR
RS ROLLOUT SWITCH
TB1 TERMINAL BLOCK
T2 TRANSFORMER, 240V, 460V
T1 TRANSFORMER, 24V, 460V
9.
SELECT INDOOR BLOWER SPEED TO REMAIN WITHIN THE TEMPERATURE
RISE RANGE ON THE NAMEPLATE IN HEATING AND TO OBTAIN APPROX.
400 CFM/TON IN COOLING.
7.
REMOVED
FIELD WIRING
OPTIONAL WIRING AND DEVICES
FACTORY WIRING AND DEVICES
REMOVED