Fujitsu WATERSTAGE 112 - Operating Limits

Heat Pump, Split System, Single Service, 3 phase
Maintenance Document 1394-1 57
4.5 Operating Limits
HEAT PUMP
WATERSTAGE
112
WATERSTAGE
140
WATERSTAGE
160
Min/max OT in heat mode (°C)*** -20/35
Heating floor maximum water
temperature (°C)
45
LT radiator maximum water
temperature (°C)
60
Min/max OT in cooling mode(°C) 8/43
Cooling floor minimum water
temperature (°C)
18
Fan coil minimum water
temperature (°C)
8
Water circuit max pressure (Bar) 3
Maximum flow rate (l/h) 2400 3000 3400
Minimum flow rate (l/h) 1200 1500 1700
Refrigerant circ max pressure (kPa) 4,2
Min delta T (°C) 4
Max delta T (°C) 8
Outdoor unit Noise level 1 (dBA)* 53 55 56
Outdoor unit Noise level 5 (dBA)** 39 41 42
Outdoor unit air flow rate (m
3
/h)
3100 x 2
* Acoustic pressure level reading at 1m, in open field, on a reflecting plane.
** Acoustic pressure level reading at 5m, in open field, on a reflecting plane t.
*** When the outdoor temperature continuously exceeds 35°C, DHW heating is done by the water heater
heating element.
Available Hydraulic Pressures and Flow Rates