© MHG Heating Ltd
18
MHG Heating Ltd, Unit 4 Epsom Downs Metro Centre, Waterfield, Tadworth, Surrey, KT20 5LR
0845 6448802 Telephone. 0845 6448803 Fax. Email
Website www.mhgheating.co.uk
010908
7.0 Electrical Connections
Basic electrical connection for all types of GKs
Legend
High Voltage Output and Input Terminals 230 Volts
Y1
230 Volt Output For Mixing Valve Opening (Max 1Amp)
Y2
230 Volt Output For Mixing Valve Opening (Max 1Amp)
B5
230 Volt Burner Output 2
nd
Stage Operating Signal
T6
230 Volt Burner Output for 2
nd
Stage Enabling
T7
230 Volt Burner Input From Volt Free Disable for Burner 2
nd
Stage (Not Used)
T8
230 Volt Burner Input From Volt Free Enable for Burner 2
nd
Stage
B4
230 Volt Burner Output 1
st
Stage Operating Signal
S3
230 Volt Output Fault/Lockout Signal
T2
230 Volt Burner Input From Volt Free Enable For Burner 1
st
Stage
L
230 Volt Output Pumps (Max 1Amp)
