7170
IO test
Line no.
7700
7730
7732
7750
7760
7820
7821
7830
7831
7832
7833
7840
7841
7845
7846
7870
7881
Status
Line no.
8000
8001
8002
8003
8004
8005
8007
8008
8010
8011
Diagnostic Cascade
MHG Heating Ltd Unit 4 Epsom Downs Metro Centre, Waterfield, Tadworth, Surrey KT20 5LR
Telephone 08456 448802 Fax 08456 448803 Email
simulation
Telephone customer
service
Data point
Relay test
Outside temperature
B9
Flow temperature B1
DHW temperature B3
Boiler temperature
B2
Sensor temperature
BX1
Sensor temperature
BX2
Sensor temperature
BX21 module 1
Sensor temperature
BX22 module 1
Sensor temperature
BX21 module 2
Sensor temperature
BX22 module 2
Voltage signal H1
Contact state H1
Voltage signal H2
Contact state H2
Signal burner fault S3
Signal 1st burner
stage E1
Data point
Status heating circuit
1
Status heating circuit
2
Status heating circuit
P
Status DHW
Status cooling circuit
1
Status boiler
Status solar
State solid fuel boiler
Status buffer
Status pool
© MHG Heating Ltd
Value
No test
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23.1
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-------
-------
-------
-------
0
Open
0
Open
0V
0V
Value
Room frost protection
active
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info@mhgheating.co.uk
010711
Used to check inputs and
outputs
Unit
°C
°C
°C
°C
°C
°C
°C
°C
°C
°C
V
V
Unit
Web www.mhgheating.co.uk
83
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