Absolute Boilers ABS 1500-2000-2500-3000-4000
43
Absolute ABS Series Model(s) 750-2500
Typical Field Wiring
BMS Application
SIZE Drawn by: DWG NO REV
11x17
Craig H. 4-EPA-SOL-001 0
SCALE
NTS 4/6/2016
SHEET
11 OF 15
H
G
F
E
D
C
B
A
8 7 6 5 4 3 2 1
H
G
F
E
D
C
B
A
8 7 6 5 4 3 2 1
H
G
F
E
D
C
B
A
8 7 6 5 4 3 2 1
H
G
F
E
D
C
B
A
8 7 6 5 4 3 2 1
P1
P1
P2
P2
P3
P3
NL L1 1 2N
TB1
1
(-)
(+)
TT
TT
ON
ON
OFF
OFF
OD
DHW
+24
24 N
DHW
DHW
OD
FL
FL
FL
TB2
Internal Wiring
TB2TB1
N - N terminals
internal jumper
Terminal Block colour
identification
Colour Connection ID and Type
Grey
Yellow
Blue
Red
White
Grey
24 + power TT connection
120v Safety Circuit
Neutral 120 & 24v
Optional Sensor(s) no power
Pump Output (dry contacts)
Block Ends (no connections)
Black
120v & 24v LED fuse holder
Green/
Yellow
Ground Terminal
L
N
120v 15A
Fused
max
Service
Un-fused local
disconnect/
Service switch
Pump Contact (dry) 5A
max Each contact
H
O
A
Pump A
starter
H
O
A
Pump B
starter
H
O
A
Pump C
starter
Pump B = CH pump
Pump C = System Pump
*All pumps configurable
Caution No don’t apply power
Sensor Wiring Only
Main 24v Power
Control/Display
Remote Automatic
Connections
120V
Safety Circuit
T2
L
N
Wiring Legend
Power wiring min 18awg
Sensor wiring shielded type
Pump Control
Dry contacts rated 5A max
Remote BMS 24v enable/
disable
120v safety contact
1
2
3
Remote
BMS control
(By Others)
4-20mA Input
+
-
Alarm Contact
x
x
Status-ON
Contact
x
x
Enable/
Disable
x
x
3
1
See sensor
wiring options
page 15
TB1
MAIN
120V Power
Innovative Industrial Inc.
122 Burton Street, Hamilton,
Ontario, Canada L8I 3R5
Innovative Industrial Inc.
122 Burton Street, Hamilton,
Ontario, Canada L8I 3R5