Tekmar 374 Universal Reset Control Manuel d'utilisateur Page 18
- Page / 36
- Table des matières
- MARQUE LIVRES
Noté. / 5. Basé sur avis des utilisateurs
© 2009 D 374 - 03/09 18 of 36
Mix 1 System Pump (Mix1 P2)
The Mix1 P2 output terminal (13) is a powered output. When the relay in the control
closes, 115 V (ac) is provided to the Mix1 P2 terminal (13) from the Power L terminal (14).
To operate the mix 1 pump, connect one side of the mix 1 pump circuit to terminal 13
and the second side of the pump circuit to the neutral (Power N) side of the 115 V (ac)
power supply.
Mix 2 System Pump (Mix2 P3)
The Mix2 P3 output terminal (17) is a powered output. When the relay in the
control closes, 115 V (ac) is provided to the Mix2 P3 terminal (17) from the Power L
terminal (14). To operate the mix 2 pump, connect one side of the mix 2 pump circuit
to terminal 17 and the second side of the pump circuit to the neutral (Power N) side of
the 115 V (ac) power supply.
Variable Speed Injection Pump
The control can vary the speed of a permanent capacitor, impedance protected or
equivalent pump motor that has a locked rotor current of less than 2.4 A. Most small
wet rotor circulators are suitable as described in Essay E 021. The control has an
internal overload fuse that is rated at 2.5 A 250 V (ac) for each variable speed output.
Contact your tekmar sales representative for details on the repair procedures if the
fuse(s) is blown.
Mix 1
Connect one of the wires from the variable speed injection pump to the Cls Var1
terminal (2) on the control. Connect the Pwr Mix terminal (3) to the live (L) side of
the 115 V (ac) power source. The other wire on the variable speed injection pump
must be connected to the neutral (N) side of the 115 V (ac) power supply.
Mix 2
Connect one of the wires from the variable speed injection pump to the Cls Var2
terminal (5) on the control. Connect the Pwr Mix terminal (3) to the live (L) side of
the 115 V (ac) power source. The other wire on the variable speed injection pump
must be connected to the neutral (N) side of the 115 V (ac) power supply.
Mixing Valve Actuator
Mix 1
Connect one side of the 24 V (ac) power to the Pwr Mix terminal (3) on the control.
The output relay Opn 1 (1) is then connected to the open terminal of the actuating
motor and the output relay Cls Var1 (2) is connected to the close terminal of the
actuating motor. Connect the second side of the 24 V (ac) circuit to the common
terminal of the actuating motor.
Caution: The same 24 V (ac) transformer must be used to power the mix 1 and the
mix 2 floating action actuating motors.
Mix 2
Connect one side of the 24 V (ac) power to the Pwr Mix terminal (3) on the control.
The output relay Opn (4) is then connected to the open terminal of the actuating
motor and the output relay Cls Var2 (5) is connected to the close terminal of the
actuating motor. Connect the second side of the 24 V (ac) circuit to the common
terminal of the actuating motor.
Caution: The same 24 V (ac) transformer must be used to power the mix 1 and the
mix 2 floating action actuating motors.
13
L
15
14
Mix1
P2
Power
N
115 V (ac)
N
L
15
L
N
16
Prim
P1
17
Mix2
P3
14
Power
115 V (ac)
L
N
2
Cls1
Var1
3
Pwr
Mix
115 V (ac)
N
L
3
4
5
Cls
Var2
Pwr
Mix
Opn
2
N
L
115 V (ac)
1
2
3
Pwr
Mix
Opn
1
Cls1
Var1
C
R
24 to 230 V (ac)
Opn
Cls
Actuating Motor
Com
3
4
5
Cls
Var2
Pwr
Mix
Opn
2
C
R
24 to 230 V (ac)
Com
Opn
Cls
Actuating Motor
- - Data Brochure 1
- Menu Item 2
- Boiler Demand 3
- Mix 1 Demand 3
- Mix 2 Demand 3
- DHW Demand 3
- Setpoint Demand 3
- Section A 4
- Section B 4
- Section C 4
- Section D 4
- Section E 4
- Timer Switch 5
- Section B1 6
- Section B2 6
- 720 hours 672 hours 8
- 672 hours 720 hours 8
- Section C1 10
- Section C2 10
- Section D1 12
- Section E1 13
- Figure 30 14
- —————— 16
- Actuating Motor 18
- 24 to 230 V (ac) 19
- 103.5 to 126.5 V (ac 20
- 20 to 260 V (ac) 20
- Stage 1/ 21
- Boil Enbl 21
- Stage 2/ 22
- Setp Enbl 22
- Advanced / Installer 23
- Setback / Off 23
- Connecting the Control 23
- Rotate / Off 24
- Floating / Variable 24
- 30% Enable / 10% Enable 24
- Boiler Sensor Return / Supply 24
- Installer 25
- SETTING THE TIME 30
- SETTING THE SCHEDULE 31
- TEST SEQUENCE 32
- MAX HEAT 32
- Control Systems 36
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