MHG Heating ProCon 16 Installation And Operating Manual page 19

Wall mounted condensing boiler range
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Enhanced electrical connection for ProCon HM (Units supplied with an integral Cascade manager)
Legend
N
E
BW
L
N
HK/ZB
E
L
M
H1
H1
Controller Operating Input (Volt free Enable/0-10 Volt Control/Mode Alteration)
M
RL
B70/B4
M
VL
B10
M
BW
B3
M
AF
B9
Cascade Controller Output to Slave Boilers. Polarity Sensitive (Screened Cable Required)
MD
RU
Cascade Controller Output to Slave Boilers. Polarity Sensitive (Screened Cable Required)
A6
MHG Heating Ltd Unit 4 Epsom Downs Metro Centre, Waterfield, Tadworth, Surrey KT20 5LR
Telephone 08456 448802 Fax 08456 448803 Email
© MHG Heating Ltd
High Voltage Output Terminals 230 Volts
Neutral Terminal for Hot Water Charging Pump
Earth Terminal for Hot Water Charging Pump
230 Volt Output For Hot Water Charging Pump (Max 1Amp)
Neutral Terminal for Heating Circuit Pump
Earth Terminal for heating Circuit Pump
230 Volt Output For Heating Circuit Pump (Max 1Amp)
Low Voltage Control terminals < 25 Volts
System Return Sensor (QAD 21) Terminal Not Polarity Sensitive < 25 Volts
System Flow Sensor (QAD 21) Terminal Not Polarity Sensitive < 25 Volts
Hot Water Sensor (QAZ36) or Hot Water Volt Free Enable (Thermostat/BMS).
Not Polarity Sensitive < 24Volts
Outside Air Sensor (QAC32) Not Polarity Sensitive < 24Volts
(Required to Activate Direct On Boiler Weather Compensation)
(X41 Terminal 2 (Right) OCI420 Communication Clip)
(X41 Terminal 1 (Left) OCI420 Communication Clip)
H1 Ground Terminal
info@mhgheating.co.uk
Web www.mhgheating.co.uk
010109
19

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Procon 27Procon 47Procon 75Procon 77

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