Viessmann BW 301.A090, Installation And Service Instructions Manual

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Type WW 1-stage 301 2-stage 302
A125 A155 A125 A155 A200 A250 A300
Refrigerant circuit
Refrigerant R410A
Refrigerant charge kg 18.4 21.4 18.9 21.2 25.8 28.3 31.8
Permiss. operating
pressure, low pres-
sure side bar 18 18 18 18 18 18 18
Permiss. operating
pressure, high pres-
sure side bar 43 43 43 43 43 43 43
No. of hermetically
sealed scroll com-
pressors Typ
e 1 1 2 2 2 2 2
Permiss. operating
pressure
Primary circuit bar 6 6 6 6 6 6 6
Secondary circuit bar 6 6 6 6 6 6 6
Dimensions
Total length mm 1932 1932 1932 1932 2521 2521 2521
Total width mm 911 911 911 911 911 911 911
Total height without
programming unit mm 1650 1650 1650 1650 1650 1650 1650
Connections
Primary flow and re-
turn
7
3" 3" 3" 3" 3" 3" 3"
Heating water flow
and return
7
2½" 2½" 2½" 2½" 2½" 2½" 2½"
Weight kg 1040 1075 1050 1085 1360 1405 1445
Sound power level
(tested with reference
to EN 12102/
EN ISO1914-2)
Weighted total sound
power level at
W10
±3 K /W35 ±5 K
At rated heating out-
put dB(
A) 61.5 63 58 60 63 64 65
Specification
Specification type WW 301.A125 to WW 302.A300
(cont.)
5848 164 GB