Application Brochure
5 of 12
- Application
Mixing Control 361
A 361-3
03/09
Copyright ©2009 A 361-3 03/09
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 = DHW Pump
R1, ..., R4 = Relay 003
S1 = Boiler Supply Sensor 082
S2 = Outdoor Sensor 070
S3 = Mix Supply Sensor 82
T1, ..., T3 = Thermostats
U1 = tekmar Timer 031 (optional)
V1 = Balancing or Globe Valve
Z1, ..., Z3 = Zone Pumps
S3
S1
C
R
S2
N
L
3
4
6
5
7
2
1
8
24 V (ac)
120 V (ac)
Class 2
Transformer
A2
P3
A1
R4
P2 P1
U1
361
1
2
4
6
8
10
5 9
Var
Do not apply power
11 12 13 14 15
Com
Sw
UnO
Boil
Indr
7
Pmp
N
Boiler
10A
Mixing
Demand
L
N
Power
Pmp
Sys
N
1716
Com
Mix
Out
3
10A2.4A
30% Enable
Return
10% Enable
Boiler Sensor
Supply
Installer
Advanced
= Required
= Optional
= Not Used
R1
R2
R3
Z1
Z2
Z3
T3
T2
T1
3
4
6
5
7
2
1
8
3
4
6
5
7
2
1
8
3
4
6
5
7
2
1
8
Mechanical
see Essay E 021
Outdoor
Sensor (S2) 070
DHW
Tank
Class 2
Transformer
120 V (ac)
24 V (ac)
P1
Mix
Sensor
(S3)
082
Boiler
Sensor
(S1) 082
P2
V1
P3
A2
A1
R4
T1
R1
Z1
T2
R2
Z2
T3
R3
Z3
361