Viessmann BW 301.A090, Installation And Service Instructions Manual

Page: 87 / 160

87
Pumps and other components
Pump/component Parameter Setting
Secondary pump (for
heating circuit A1/HC1
without heating water
buffer cylinder; no addi-
tional heating circuit
pump required) "System definition"
Ó
"System scheme 7000"
"1" to "11"
Heating circuit pump A1/
HC1 (in conjunction with
heating water buffer cyl-
inder in addition to the
secondary pump) "System definition"
Ó
"System scheme 7000"
With heating circuit A1 (for
heating circuit without mixer
A1/HC1)
Heating circuit pump and
mixer M2/HC2 "System definition"
Ó
"System scheme 7000"
With heating circuit M2 (for
heating circuit with mix-
er M2/HC2)
Heating circuit pump and
mixer M3/HC3 (control-
led via mixer extension
kit) "System definition"
Ó
"System scheme 7000"
With heating circuit M3 (for
heating circuit with mixer
M3/HC3)
Note
Set rotary switch S1 in the
extension kit to "2" (see ex-
tension kit installation in-
structions).
Circulation pump for cyl-
inder heating "System definition"
Ó
"System scheme 7000"
With DHW heating
"Internal hydraulics"
Ó
"Enable 3-way diverter
valve heating/DHW
730D"
"0"
DHW heating
with cylinder loading sys-
tem:
■ Cylinder loading pump
■ 2-way shut-off valve "External heat source"
Ó
"Enable external heat
source for DHW heating
7B0D"
"1"
"System definition"
Ó
"System scheme 7000"
With DHW heating
DHW circulation pump Extended menu:
"Time prog DHW circ"
Set time program
Commissioning, inspection, maintenance
Further details regarding the individual steps
(cont.)
5848 164 GB
Service