Application Brochure

Note: This is only a concept drawing. The designer must determine whether this application will work in his system and must ensure compliance with
code requirements. Necessary auxiliary equipment, isolation relays (for loads greater than the specified tekmar internal relay ratings), and other safety
and limit devices must be added.
- Application
Electrical
Mechanical
A 153-1
12/08
Mixing Setpoint Control 153
120 V (ac)
Class 2
Transformer 24 V (ac)
N
L
C
R
120 V (ac)
153
12
3
4 5678
Power
Com
Sen
Sup
Sen
Ret
Sen
Pwr
Mix
Opn
Mix
Cls
Mix
10A 10A
C-
R+
M1 = Actuating Motor 741-24V (ac) Floating Action
P1 = Heating Load Pump
S1 = Mix Supply Sensor 071
S2 = Boiler Return Sensor 071
P1
V1
P1
S1
S2
M1
V1 = 3-way Mixing Valve 710 - 714
P2 = System Pump
P2
Additional
zones
S1
S2
153
Class 2
Transformer
24 V (ac)
SW2
SW1
SW1 = Heating Pump Control Switch
SW2 = Boiler Control Switch
123
C
No Power
SW2
C
C
T
T
Boiler
P2
SW1

Summary of content (6 pages)