18
Scranton, IA 51462
Phone (712) 652-3424
www.bdmfginc.com
ADDITIONAL 24V SOURCE FOR HSS® AIR HANDLER (3,4 & 5 TON UNITS)
+
_
_
+
HEAT TIMER 3
OUT
IN
9 10 11 12 13 14 15 16 17 18 19 20
NO C NC NO C NC NO C NC NO C NC
B&D MFG INC. PART # ZT-4X
1
2
3
4
5
6
7
8
B&D MFG INC.
PART # B2-30T
B&D MFG INC.
PART # B2-30T
B&D MFG INC.
PART # B2-30T
+
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+
_
HEAT TIMER 2
FAN TIMER
IN
IN
OUT
OUT
LINE VOLTAGE
208V/240V
SINGLE PHASE
_
+
PRI: COM 208 240 24 VAC
BLK RED ORG BLU YEL
SEC:
50 VA 50/60 Hz
CLASS 2 NOT WET, CLASS 3 WET
C
US
GRN
RED
BLK
YEL
GRN
COM
WHT
BRN
RED
YEL
208V/240V
24V
1
2
3
4
5
6
C
Y
O
R
W G
C Y O R W G
6
5
4
3
2
1
6
5
4
3
2
1
24V LOW VOLTAGE
CLASS 2
FIELD WIRING
FIELD WIRING
240V
L1
GROUND
G
G
G
G
G
G
G
L2
GRY
GRN
YEL
WHT
COM
COM
WHT
ORN
RED
RED
COM
WHT
COM
WHT
COM
WHT
YEL
GRN
YEL
R
ED
O
R
N
C
O
M
YE
L
BLK
YEL
YEL
COM
COM
BLK
BLK
ORN
RED
GRN
GRN
COM
COM
YEL
YEL
COM
COM
COMMON IS REQUIRED
GRN
WHT
YEL
FIELD
WIRING
24V
_
+
PRI:
COM 208 240 24 VAC
BLK RED ORG BLU YEL
SEC:
50 VA 50/60 Hz
CLASS 2 NOT WET, CLASS 3 WET
C
US
YEL
208V/240V
24V
COM
COM
WIRE FOR EXTRA
24V
POWER SOURCE
ZOOMED IN VIEW OF ADDITIONAL 24V POWER OPTION ON HSS® AIR HANDLER
WIRE FOR EXTRA
24V
POWER SOURCE
1. IT IS RECOMMENDED TO ADD AN INLINE FUSE IF WIRING INTO
THE 24V ADDITIONAL POWER SOURCE.
(THIS IS TO KEEP FROM DAMAGING THE TRANSFORMER)
2. ALL FIELD WIRING MUST BE PER THE FOLLOWING:
NATIONAL ELECTRICAL CODE (NEC) AND / OR
CANADIAN ELECTRICAL CODE (CEC) AND / OR
STATE, COUNTY, LOCAL, REGIONAL OR CITY CODES.
3. IF ANY OF THE ORIGINAL WIRING MUST BE REPLACED;
REPLACE THE WIRE WITH WIRE THAT HAS THE SAME
TEMPERATURE RATING OF 221
F (105
C).
4. ONLY USE COPPER CONDUCTORS FOR FIELD WIRING.
5. ALL REPLACEMENT COMPONENTS MUST BE PROPERLY GROUNDED.
6. PROVIDE CIRCUIT BREAKER SIZED TO PROTECT THE
WIRING FROM THE MAIN ELECTRICAL SERVICE ENTRANCE
TO THE CIRCUIT BREAKERS IN THE UNIT CONTROL BOX.
7. THE MOTORS ARE INTERNALLY THERMALLY PROTECTED.
8. THE COMMON WIRE FROM THE THERMOSTAT IS REQUIRED
NOTES
+ _
_
+
HEAT TIMER 3
OUT
IN
9 10 11 12 13 14 15 16 17 18 19 20
NO C NC NO C NC NO C NC NO C NC
B&D MFG INC. PART # ZT-4X
1
2
3
4
5
6
7
8
B&D MFG INC.
PART # B2-30T
B&D MFG INC.
PART # B2-30T
B&D MFG INC.
PART # B2-30T
+ _
+ _
HEAT TIMER 2
FAN TIMER
IN
IN
OUT
OUT
LINE VOLTAGE
208V/240V
SINGLE PHASE
_
+
PRI: COM 208 240 24 VAC
BLK RED ORG BLU YEL
SEC:
50 VA 50/60 Hz
CLASS 2 NOT WET, CLASS 3 WET
C
US
GRN
RED
BLK
YEL
GRN
COM
WHT
BRN
RED
YEL
208V/240V
24V
1
2
3
4
5
6
C
Y
O
R
W G
C Y O R W G
6
5
4
3
2
1
6
5
4
3
2
1
24V LOW VOLTAGE
CLASS 2
FIELD WIRING
FIELD WIRING
240V
L1
GROUND
G
G
G
G
G
G
G
L2
GRY
GRN
YEL
WHT
COM
COM
WHT
ORN
RED
RED
COM
WHT
COM
WHT
COM
WHT
YEL
GRN
YEL
R
ED
O
R
N
C
O
M
YE
L
BLK
YEL
YEL
COM
COM
BLK
BLK
ORN
RED
GRN
GRN
COM
COM
YEL
YEL
COM
COM
COMMON IS REQUIRED
GRN
WHT
YEL
FIELD
WIRING
24V
_
+
PRI:
COM 208 240 24 VAC
BLK RED ORG BLU YEL
SEC:
50 VA 50/60 Hz
CLASS 2 NOT WET, CLASS 3 WET
C
US
YEL
208V/240V
24V
COM
COM
WIRE FOR EXTRA
24V
POWER SOURCE
WIRE FOR EXTRA
24V
POWER SOURCE
ZOOMED IN VIEW OF ADDITIONAL 24V POWER OPTION ON HSS® AIR HANDLER
NOTE
IT IS RECOMMENDED TO ADD AN INLINE FUSE IF WIRING INTO THE 24V ADDITIONAL POWER SOURCE.
(THIS IS TO KEEP FROM DAMAGING THE TRANSFORMER)
