Application Brochure

5 of 12
- Application
Mixing Control 356
A 356-3
05/00
Copyright ©2000 A 356-3 05/00
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.
Electrical
A1 = DHW Aquastat
A2 = DHW High Limit Aquastat
P1 = Variable Speed Injection Pump
P2 = Boiler Pump
P3 = Mixing System Pump
R1, R2 = Relay 003
S1 = Mix Supply Sensor 071
S2 = Outdoor Sensor 070
S3 = Boiler Supply Sensor 071
T1, ..., T3 = Thermostats
V1 = DHW Valve
V2 = Balancing or Globe Valve
V3 = Balancing Valve or Pressure Bypass Valve
Z1, ..., Z3 = Zone Valve Motor End Switches
356
5
7
9
86
T
5A
Boiler
R+
C-
Power
Do not apply power
2
Out
3
Sup
Com
14
Boil
2.4A
S2
S3
S1
M
C
R
Zone Valve
Motor End
Switches
Z1
Z2
Z3
3
4
6
5
7
2
1
8
3
4
6
5
7
2
1
8
24 V (ac)
120 V (ac)
Class II
Transformer
R1
P1
Boiler
P3
P2
R2
A2
A1
V1
N
L
Mechanical
M
MM
see Essay E 021
Outdoor
Sensor (S2) 070
DHW
Tank
M
∆P
P1
Mix
Sensor
(S1) 071
Boiler
Sensor
(S3) 071
P2
P3
R1
A2
A1
R2
V1
T1
Z1
T2
Z2
T3
Z3
V2
V3
Class II
Transformer
120 V (ac)
24 V (ac)
356