Energy Meter; Additional Generator (Boiler Connection) - Fujitsu Super High Power Series Design & Technical Manual

3-9. Energy meter

Line Access
3095 S
...
3267 U

3-10. Additional generator (Boiler connection)

Line Access
3692 S With DHW charging
• DHW instantly: When DHW request, the HP and the boiler are put into operation. The HP will
stop when the primary return temperature is over 55°C.
• DHW substitute: If the outdoor temperature is above 2°C, the operation of the HP when DHW
request last 5 minutes at least. The HP operating time can be extended depending on the
outdoor temperature. The boiler will active then.
3700 S Release below outside temperature
3701 S Release above outside temperature -50...50°C
3705 S Overrun time
3720 S Switching integral (for boiler relief)
3723 S Locking time
A supplementary producer can be operated in addition to the main producer (heat pump). Release of
the supplementary producer depends on a number of parameters a detailed description of which is
given on the followings.
• Release is effected via release relay Qx2
• 2-position control is effected via control relay Qx3
• Ux can be used to transmit the supplementary source a DC 0...10 V signal for the required tem-
perature/output setpoint.
Line
3692
Defines the release of the supplementary source for DHW charging:
• Locked
The supplementary source will not be released.
• Substitute
The supplementary source is released only if the main source cannot be put into operation (e.g. in
the event of fault).
• Complement
The supplementary producer is released if the output of the main producer is not sufficient.
• Instantly
The supplementary source will always be released.
Line
3700
3701
Operation of supplementary source is released only when the composite outside temperature lies
above or below the set temperature limitation. This enables the supplementary source to lock in a
3-9. Energy meter
Function
Function
Locked
Substitute
Complement
Instantly
-50...50°C
0...120 min
0...500°Cmin
1...120 min
With DHW charging
Release below outside temperature
Release above outside temperature
- (03-38) -
Setting range or display
Not used
Setting range or display
Function
Function
Factory
setting
Factory
setting
Substitute
2°C
---
20 min
100°Cmin
30 min
3. Function table