Application Brochure

Electrical
Mechanical
- Application
Note: This is only a concept drawing. Designers must determine whether this system will work in each application and must ensure
compliance with code requirements. Necessary auxiliary equipment and safety devices must be added.
Two Stage Setpoint Control 152
A 152-4
12/93
3
4
6
5
7
2
1
8
120Vac
12
3
4 56789
C
Power
R
Relay 1
Com
Sen
S1
Sen
S2
Sen
Relay 2
152
24V only
No Power
V1
R1
P2
M1 = Fan Coil Blower Motor
P1 = Fan Coil Pump
P2 = Slab Pump
R1 = Relay 003
S1 = Slab Sensor 072 or 073
S2 = Room Sensor 074
V1 = Injection Valve
Boiler Pump
Relay
(R1) 003
Fan Coil
Pump (P1)
Class II
Transformer
120Vac
24Vac
Slab
Pump (P2)
Room
Sensor
(S2) 074
Slab Sensor
(S1) 072 or 073
Balancing
Valve
Injection
Valve
M
152
M1
M
S1
S2
Fan Coil
10A 10A
On
—
Off
24Vac
C
R
L
Class II
Transformer
P1
N
Boiler
Enable
Max. 4 pipe
diameters apart
M