Heat Link 31360, Manual

Page: 14 / 44

HeatLink
®
Mixing Valve Reset Control Stk# 31360
®
Link Heat
www.heatlinkgroup.com
H
e
a
tL
in
k
14
Installation
Output Connections
Sensor and Unpowered Input Connections
Important: Do not apply power to these terminals as this will damage the control.
Boiler Return Sensor (North American version)
If a Boiler Return Sensor (Universal) Stk# 30071 is used, connect the two wires from te sensor
to the Com and Boil Ret terminals (13 and 14). The boiler return sensor is used by te control to
measure the boiler return temperature.
13 14
Com Boil
Boiler return
sensor
Ret
Outdoor Sensor
Connect the two wires from the HeatLink ® Outdoor Sensor Stk# 30070 to the Com and Out
terminals (16 and 17). The outdoor sensor is used by the Stk# 31360 to measure the outdoor air
temperature.
16 17
Com Out
Boiler Contact
The Boiler terminals (7 and 8) are an isolated output in the Stk# 31360. 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 Stk# 31360 requires the boiler to fire, it closes the contact
between terminals 7 and 8.
T T
T
T
7 8
Boiler
T
T
9 10
R
Opn
R
Cls
C
11
Powered Output
Com
C
1 2 3
Opn Cls
Mixing valve
actuator
Mixing Valve Actuator (North American version)
Terminals 9, 10 and 11 are powered with 24 V (ac) from the control. There is no need to provide
a separate 24 V (ac) power source for the mixing valve actuator. R Opn (9) is connected to the
open terminal of the actuating motor and R Cls (10) is connected to the close terminal of the
actuating motor. C (11) is then connected to the common terminal of the actuating motor.
3 4
Power
Sys
Pmp
5 6
N
120 V (ac)
L N
L
N
System
pump
System Pump Contact (Sys Pmp)
The Sys Pmp output terminal (5) on the Stk# 31360 is a powered output. When the relay in the Stk#
31360 closes, a120 V (ac) is provided to the SysPmp terminal (5) from the Power L terminal (3).
To operate the system pump, connect one side of the system pump circuit to terminal (5), and the
second side of the pump circuit to the neutral (N) terminal 6 from the Power L terminal (3).
Mixing Sensor
Connect the two wires from the HeatLink
®
Mix (Universal) Sensor Stk# 30071 to the Com and
Mix terminals (13 and 15). The mix sensor is used by the Stk# 31360 to measure the mixed
supply water temperature after the system pump.
13 14
15
Mixing
sensor
Com Mix Boil
System
pump
9
Pwr
Mix
1 0
Opn
1 1
Cls
N
L
1
Com
C
Opn Cls
2
3
Mixing Valve Actuator (European version)
Terminals 9, 10 and 11 are isolated outputs from the control. Connect one side of the actuator
power to the Pwr Mix terminal (9) on the control. The output relay Opn (10) is then connected to
the open terminal of the actuator and the output relay Cls (11) is connected to the close terminal
of the actuator. Connect the second side of the actuator power to ther common terminal of the
actuator.
or
Boiler supply
sensor
13 14
Com Boil
Boiler return
sensor
Boiler Sensor (European version)
Connect the two wires from the HeatLink
®
Boiler (Universal) Sensor Stk# 30071 to the Com
and Boil terminals (13 and 14). The boiler sensor is used by the Stk# 31360 to measure boiler
temperature.