tekmar 363 Universal Reset Control Installation User Manual
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Copyright © D 363 -12/08
• If a tekmar Zone Control is used, run the wires from the Zone Control to the 363. Refer to the instructions supplied with the Zone
Control.
• Run wire from other system components (pumps, boiler, actuator motors, etc.) to the control.
• Run wires from the 120 V (ac) power to the control. Use a clean power source to ensure proper operation. Multi-strand 16 AWG
wire is recommended for all 120 V (ac) wiring due to its superior flexibility and ease of installation into the terminals.
STEP FOUR
ELECTRICAL CONNECTIONS TO THE CONTROL
The installer should test to confirm that no voltage is present at any of the wires. Push the
control into the base and slide it down until it snaps firmly into place.
Powered Input Connections
120 V (ac) Power
Connect the 120 V (ac) power supply to the
Power N and Power L terminals (6 and 7).
This connection provides power to the microprocessor and display of the control. As well,
this connection provides power to the
Boil P1 and Mix P2 terminals (8 and 11) from the
Power L terminal (7).
Mixing Demand
To generate a
Mixing Demand, a voltage between 24 V (ac) and 240 V (ac) must be
applied across the
Mix Demand terminals (1 and 2).
Boiler Demand
To generate a
Boiler Demand, a voltage between 24 V (ac) and 240 V (ac) must be applied
across the
Boil Dem and the Com Dem terminals (4 and 3).
DHW Demand
To generate an external DHW Demand, a voltage between 24 V (ac) and 240 V (ac) must
be applied across the
Setp / DHW and the Com Dem terminals (5 and 3).
Setpoint Demand
To generate a Setpoint Demand, a voltage between 24 V (ac) and 240 V (ac) must be
applied across the
Setp / DHW and the Com Dem terminals (5 and 3).
Caution: The same power supply must be used for both the DHW demand and setpoint
demand circuits since they share the
Com Dem terminals.
Output Connections
Boiler Pump Contact (Boil P1)
The boiler pump output terminal (8) on the 363 is a powered output. When the relay
contact in the 363 closes, 120 V (ac) line (L) is provided to the
Boil P1 terminal (8) from
the
Power L terminal (7). To operate the boiler pump, connect one side of the boiler pump
circuit to terminal 8 and the second side of the pump circuit to the neutral (N) side of the
120 V (ac) power supply.
DHW Pump / Valve Contact
The
DHW Pump / Valve terminals (9 and 10) are an isolated output in the 363. There is
no power available on these terminals from the control. These terminals are to be used
as a switch to either make or break power to the DHW pump or the DHW valve. Since this
is an isolated contact, it may switch a voltage between 24 V (ac) and 240 V (ac).
Mixing Pump Contact (Mix P2)
The mixing pump output terminal (11) on the 363 is a powered output. When the relay
contact in the 363 closes, 120 V (ac) line (L) is provided to the
Mix P2 terminal (11) from
the
Power L terminal (7). To operate the mixing pump, connect one side of the mixing
pump circuit to terminal 11 and the second side of the pump circuit to the neutral (N) side
of the 120 V (ac) power supply.
Boiler Contact
The Boiler terminals (12 and 13) are an isolated output in the 363. There is no power
available on these terminals from the control. These terminals are to be used as a switch
to either make or break the boiler circuit. When the 363 requires the boiler to fire, it closes
the contact between terminals 12 and 13.
6
7
N
L
Power
120 V (ac)
1
2
Mix
Demand
24 to 240 V (ac)
3
4
Com
Dem
Boil
Dem
24 to 240 V (ac)
3
4
Com
Dem
Boil
Dem
Setp/
DHW
5
24 to 240 V (ac)
12 13
Boiler
T T
T
T
N
L
Boil
P1
9 10
DHW
Pmp/Vlv
11
Mix
P2
8
7
6
Power
120 V (ac)
L
N
N
L
Boil
P1
8
7
6
Power
120 V (ac)
L
N
9 10
DHW
Pmp/Vlv
24 to 240 V (ac)
M
or
• 120 V (ac) to be provided from a 15 A circuit breaker and must have a circuit disconnect installed.
• Connect ground wires to ground bus bar in wiring area.