Viessmann VITODENS 100-W WB1B Series Installation And Service Instructions Manual page 31

Installation Examples
System Layout 4
Vitodens 100-W, WB1B 26, 35 with...
- DHW storage tank
- Low-loss header
- one high-temperature heating circuit
- one low-temperature heating circuit
- Viessmann Vitotronic 050, HK1M controller
120V POWER
SUPPLY
4-7 GPM
FLOW
GRUNDFOSS UPS-15-58FC
3-SPEED CIRCULATOR OR
EQUIVALENT
RECOMMENDED
LOW LOSS HEADER
ViPN 7134791 (for max. 17.5 GPM)
ViPN 7134792 (for max. 35 GPM)
Fig. 28
Legend
A Boiler power pump module
A1
Primary pump (boiler power /
pump module control)
(field supplied)
B Honeywell switching relay for
heating circuit E
B1
Heating circuit pump
(field supplied)
C Honeywell switching relay for
DHW H control DHW circulating
C1
pump (field supplied)
D Vitotronic 050, Model HK1M
Digital indoor / outdoor heating
circuit control unit & pump control
Vi. Part No. 7134 627
D1
Heating circuit pump
(field supplied)
(continued)
RT
ST
max. 17.5 GPM or
35 GPM (SEE LOW
LOSS HEADER)
OPTIONAL LIMIT
THERMOSTAT
E Radiator heating circuit
F Underfloor heating circuit
G Low loss header
-Max. flow 17.5 USGPM
Vi. Part No. 7134 791
-Max. flow 35 USGPM
Vi. Part No. 7134 792
H DHW indirect storage tank
I Outdoor temperature sensor
J Limit thermostat (optional)
See note 1
SEE NOTE 1
120V POWER SUPPLY
SEE NOTE 1
See page 33 for notes and
explanation of this drawing.
K DHW tank aquastat, Honeywell
M Mixing valve motor / control
N Mixing valve supply
O Viessmann mixing valve
P Room thermostat (optional)
Q Vitodens 100 boiler
R Expansion tank
Boiler Connections
OPTIONAL ROOM
THERMOSTAT
ATS
HK1M PPM
SEE NOTE 3
Part No. L4008A1031,
Vi. Part No. 9560 985
temperature sensor
See note 2.
SEE NOTE 2
120V
POWER
SUPPLY
31