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GB312 with AM10: Outdoor reset, DHW and multi-zones with relay panel
EK
Inlet Water
FA
Outside Sensor
FW
DHW Tank Aquastat
FA
KR
Check Valve
MAG
Expansion Tank
PH
Circulation Pump - Heating Zone
PS
DHW Load Pump
PZ
Recirculating Pump
PZB
Boiler Pump
SA
Shut-off Valve
(reccomended)
THV
Thermostatic Head
* Third Party Product
GB312 with 4323 Control and Full System Functionality
EK
Inlet Water
FA
Outside Sensor
FK
System Flow Sensor
FA
FV
Heating Zone Temperature Sensors
FW
DHW Tank Sensor
KR
Check Valve
MAG
Expansion Tank
PH
Circulation Pump - Heating Zone
PS
DHW Load Pump
PZ
Recirculating Pump
PZB
Boiler Pump
SA
Shut-off Valve
(reccomended)
SH
Mixing Valve
WH
Low Loss Header (LLH)
GB312 with 4323 Control and the FM456 Module
EK
Inlet Water
FA
Outside Sensor
FK
System Flow Sensor
FV
Heating Zone
Temperature Sensors
1)
FW
DHW Tank Sensor
FA
KR
Check Valve
MAG
Expansion Tank
PH
Circulation Pump - Heating Zone
PS
DHW Load Pump
PZ
Recirculating Pump
PZB
Boiler Pump
SA
Shut-off Valve
(reccomended)
SH
Mixing Valve
THV
Themostatic Head
WH
Low Loss Header (LLH)
Multi-Zone
Relay Panel*
PZ
KR
AM10
FW
EK
PZB
MAG
GB312
Logamatic 4323 with FM456
PZ
KR
FW
EK
FK
PZB
SA
MAG
GB312
WH
Logamatic 4323 with FM456
Z P
B
Z P
B
GB312
THV
THV
SA
SA
SA
KR
KR
KR
PS
PH2
PH3
FV1
FV2
SA
KR
KR
KR
PH1
PS
PH2
SH1
SH2
PZ
THV
KR
FV
FW
SA
EK
KR
KR
PS
PH2
WH
SH2
FK
MAG
GB312 Clearance Requirements
E
D
B
A
Top View
Dimension
Min.
A
20"
B
22"
C
20"
D
20"
E
6"
GB312 Boiler Pressure Drop
100
10
1
Y
0.1
1
10
X
90-4
X Flow Rate in Gal/Min (GPM)
120-4
Y Primary Pressure Drop in PSI
160-5
C
Recommended
28"
28"
28"
28"
14"
100
200-6
240-7
280-8
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