Controller pack
Service Manual
122
System configurations
SMGB0066 rev.0 - 12/2009
Bi-Valent system - serial operation ‘conf 5’
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This system is recommended for retrofit (upgrade) applications where an existing gas/oil boiler will be retained to provide the
full heating requirements on the coldest days of the year.
•
Direct OTC controlled heating loop
- Direct loop when heat pump operating on it´s own mixing circuit when boiler operating
• Sequence control of boiler and heat pump
• Optional DHW storage with diverting valve or pump
● Important settings
• Set installer parameter CONF to value 5
• Set installer parameter P1 to 0 (no DHW), 1 (DHW valve) or 2 (DHW pump)
• Set P4 (OTC heating curve) according to building/ system
● Additional settings
•
Boiler control parameters
•
Mixing valve control parameters
•
DHW setpoint and control parameters
•
Minimum and maximum supply temperatures
•
Room temperature compensation
•
Frost Protection parameters
•
Summer switch-off setting
•
Tariff/ Timer input configuration
- Heat Pump
- Boiler
- Secondary pump
- Bypass/ Mixing valve
- Optional DHW pump/ valve
Terminal block C (inputs)
Terminal block A (outputs)
Terminal block B (Power Supply)
Mixed supply
sensor
Return sensor
Supply sensor
Outdoor sensor
Heat pump
control output
Heat pump fault
Tariff/ Timer input
DHW Sensor
RF Receiver
-
+
T MIX
T RET
4-20mA
T SUP
T DHW
T EXT
12
11
10
9
8
7
6
5
4
3
2
1
15
14
13
Boiler on/of
f
Secondary pump
Heat pump
remote on/of
f
ON/
OFF
Mixing valve close
Mixing valve open
12
11
10
9
8
7
6
5
4
3
2
1
DHW
Valve/Pump
N
N
L
15
14
13