Technical data

St Michaels House Lagan Rd Job Ref: 2009-001 Electrical O&M Manual
Alfa Electrical Ltd 29/01/2009
Boiler House Wiring Schedule
Equipment Ref Switch Indication / Location
Boiler BO/1 Test-Off-Auto Power on/fault
Burner BU/1 Test-Off-Auto Boiler house
Primary Pump Calorifier Constant
temperature circuit P1 Test-Off-Auto Running/Tripped Boilerhouse
Heating Pump Zone A P2 Test-Off-Auto
Running/Tripped Boiler
house
Heating Pump Zone B P3 Test-Off-Auto
Running/Tripped Boiler
house
Shunt Pump P7 Test-Off-Auto
Running/Tripped Boiler
house
Hot Water Secondary Return Pump P9 Test-Off-Auto
Running/Tripped Boiler
house
Heat dissipation stat (flow header) T1 N/A Return Header
Boiler house Frost immersion stat (return
header) T2 N/A Flow Header
Boiler house External Stat (weather
compensation) T3 N/A North External Wall
External Stat (frost) T4 N/A
North External Wall Boiler
House
In Line Flow Temperature Detector Zone
A T5 N/A
Flow Pipe Downstream of
Mixing Valve
In Line Flow Temperature Detector Zone
B T6 N/A
Flow Pipe Downstream of
Mixing Valve
Room Air Temperature Sensor Zone A T10 N/A
Heating Zone A Wall
Mounted
Room Air Temperature Sensor Zone B T11 N/A
Heating Zone B Wall
Mounted
Calorifier Water Temperature HI/Lo
control Stats T15 & T16 N/A Boiler House
Motorised mixing valve Zone A MMV1 N/A Boiler House
Motorised mixing valve Zone B MMV2 N/A Boiler House
Motorised mixing valve Calorifier MMV6 N/A Boiler House
Manual On/Off switch For Zone A N/A Admin Office
Manual On/Off switch For Zone B N/A Admin Office
LPHW Pressurisation Unit PU-1 On-Off
Power On/Fault/Pressure
Alarm
PU 1 High Pressure Switch PU 1.1 N/A Integral to PU 1
PU 1 Low Pressure Switch PU 1.2 N/A Integral to PU 1
PU 1 Control Pressure Switch PU 1.3 N/A Integral to PU 1
Water Booster set WB 1 On-Off Boiler Room
Gas Detection Panel GP 1 On-Off Boiler Room