Solo Plus Instructions 1-800-782-9927 Version 12-13
Tarm Biomass · 4 Britton Lane · Lyme, NH 03768
3.5 Commissioning the Boiler
3.5.1 Safety Plumbing
The boiler pressure relief valve (provided, part #
1040705
), must be installed as shown in
Fig. 3.5
.
This is to ensure that excessive pressure will not be developed in the boiler.
A thermostatic mixing valve (accessory, part #
K4440A3
or
4832S
), and boiler circulator (included
with the 4823S) should be incorporated into the heating system piping as shown in
Fig. 3.6.
When the
K4440A3
is used a ball valve
(I)
(not provided) must be installed upstream of Port 1 of valve
TV-1
.
The valve should be set at half open (and the handle removed), in order for the tempering loop to func-
tion correctly. If accessory
K4440A3
Termovar mixing valve is provided for use as
TV-1
, the unions
supplied with the valve have internal valves which must be fully open.
Boiler Installation & Start-up > Commissioning the Boiler
Page 31
Installed Relief Valve
Fig. 3.6
1
2
Wood Boiler
1¼"
1¼"
Automag
Zone Valve
BioHeat Part # AUTOMAG
C-3
1"
1"
1¼"
3
BioHeat Part
# L4006B
A
B
TV-1
BioHeat Part #
K4440A-3
I
D
K
C-3
Termovar
Option A
Termovar
Option B
TV-1
BioHeat Part #
4832S
2
3
1
Fig. 3.7
Typical Plumbing Schematic