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Technical Data Capacity Coil C.H.W. D.H.W. Max Heating Heat Ioss
Surface Flow/rate Flow/rate Output
MODEL It. m
2
m
3
/h It/h kW kWh/24h
Contract STI 125 Indirect 125 0.75 0.5 194 11.3 2
1 266 15.5
2 340 19.8
Comfort STI 125 Indirect 125 0.75 0.5 256 14.9 2.2
Contract STI 150 Indirect 150 0.93 1 353 20.5
2 451 26.2
Comfort STI 150 Indirect 150 0.93 0.5 256 14.9 2.4
Contract STI 210 indirect 200 0.93 1 353 20.5
2 451 26.2
Comfort STI 210 Indirect 200 0.93 0.5 256 14.9 2.9
Contract STI 300 Indirect 300 0.93 1 353 20.5
2 451 26.2
SB 125 Indirect 125 1 0.5 190 11 1.72
1 318 18.5
2 496 28.8
SB 150 Indirect 150 1 0.5 190 11 1.75
1 318 18.5
2 496 28.8
SB 200 Indirect 200 1.3 0.5 190 11 2.1
1 318 18.5
2 496 28.8
TABLE 3.1
Wiring to 3 port valve installation
using an external 2 channel
programmer
Type Danfoss FP715
Type Honeywell ST6400C
FIG
. 3.4
NOTE: When using a 3 port valve installation in conjunction with an unvented cylinder it will be
necessary to use a 2 port valve on the cylinder flow connection in addition to the 3- port
valve to satisfy Building Regulations.