© MHG Heating Ltd
41
MHG Heating Ltd Unit 4 Epsom Downs Metro Centre, Waterfield, Tadworth, Surrey KT20 5LR
Telephone 08456 448802 Fax 08456 448803 Email
info@mhgheating.co.uk
Web www.mhgheating.co.uk
140116
5894
Relay output QX4
None, Heat gen shutoff valve Y4,
Buffer return valve Y15, Solar ctrl
elem buffer K8, Solar ctrl elemswi
pool K18, DHW ctrl elem Q3, Instant
heat ctrl elem Q34
None
-
5930
Sensor input BX1
None, DHW sensor B32, Collector
sensor B6, DHW circulation sensor
B39, Buffer sensor B4, Buffer sensor
B41, Flue gas temp sensor B8,
Segment flow sensor B10, Solid fuel
boiler sensor B22, DHW charging
sensor B36, Buffer sensor B42,
Segment return sensor B73,
Cascade return flow sensor B70,
Pool sensor B13, Solar flow sensor
B63, Solar return sensor B64,
Primary exch sensor B26
Flue gas temp
sensor B8
-
5931
Sensor input BX2
See Para 5930
None
-
5932
Sensor input BX3
See Para 5930
None
-
5950
Function of Input H1
None, Optg mode change HCs +
DHW, Optg mode changeover DHW,
Optg mode changeover HCs, Opt
mode changeover HC1, Opt
changeover HC2, Opt changeover
HC3, Heat generation lock,
Error/alarm message, Consumer
request VK1, consumer request VK2,
release swi pool source heat, Excess
heat discharge, release swi pool
solar, Operating level DHW,
Operating level HC1, Operating level
HC2, Operating level HC3, Room
thermostat HC1, Room thermostat
HC2, Room thermostat HC3, DHW
flow switch, DHW thermostat, Pulse
count, Checkb sign flue gas damper,
Start prevention, Boiler flow switch,
Boiler pressure switch, Consumer
request VK1 10V, Consumer request
VK2 10V, Pressure measurement
10V, Output request 10V
None
-
5951
Contact Type H1
Normal closed, Normal Open
Normal Open
-
5953
Voltage value 1 H1
0
– 10
0
Volts
5954
Function value 1 H1
-1000
– 5000
0
-
5955
Voltage value 2 H1
0
– 10
0
Volts
5956
Function value 2 H1
-1000
– 5000
0
-