21
5285 429 - 03
Vitorond 200, VD2 Series 320 to 1080 Installation
Water Side Connections
(continued)
A suitable low temperature protection package from
Viessmann is necessary for Vitorond 200, VD2 boilers.
Selection of the appropriate package typically takes place
prior to boiler delivery.
Please specify correct package at time of order.
Install the 30% boiler flow package as illustrated.
The 30% boiler flow package consists of:
H
1 boiler pump
H
2 ball valves
H
1 flow check valve
Metric flange c/w
weld-on 2½ in.
NPT coupling
Metric flange
c/w weld-on
2½” NPT
coupling
Metric flange
c/w weld-on
2½ in. NPT
coupling
Boiler return
connection
(metric)
Boiler supply
connection
(metric)
System
return header
(ANSI), 4 in.
System
supply header
(ANSI), 4 in.
Return temperature elevation
Legend
A
Low water cut-off (standard equipment)
B
Shunt pump
C
Flow check valve
D
Location of Honeywell aquastat
(to control boiler pump)
E
Location of
aJ
sensor
(installed in stainless steel well)
All piping field supplied.
Install 100% boiler flow package as illustrated.
The 100% boiler flow package consists of:
H
1 3-way mixing valve
H
1 actuator
H
1 boiler pump
Boiler return
connection
(metric)
Boiler supply
connection
(metric)
System supply
header (ANSI)
System
supply
System return
header (ANSI)
Legend
F
Boiler pump
G
3-Way mixing valve
H
Low water cut-off (standard equipment)
K
Location of
aJ
sensor
(installed in stainless steel well)
All piping field supplied.
Connections