14
Figure #3
no VALVe MAy Be insTALLed BeTWeen
BoiLeR And ConTRoLs MAniFoLd oR
sAFeTy ReLieF VALVe.
WARNING
!
Locate the cast iron supply manifold
10.
shown in
Figure #6
. Flow arrow must point up. Thread onto the
long nipple. Using hex head on top, tighten manifold
until NPT bosses for Aquastat well and Temp / Pres-
sure gauge are facing toward front of boiler and joint
is water tight.
install Low Water Cut off
11.
. (Optional pre-wired
kit- If not used, install 3/4” NPT plug provided in parts
bag.) See
Figure #6
.
install High Temp Limit Manual Reset
12.
. (Optional
pre-wired kit - If not used, install 1/2” NPT plug pro-
vided in parts bag). See
Figure #6
.
install Temperature / Pressure Gauge
13.
. Install into
lower front NPT port. See
Figure #6
.
install Aquastat Control immersion well
14.
. Install
in upper NPT port facing front. See
Figure #6
.
install Aquastat Control & Harness Assembly
15.
.
Loosen mounting screw on bottom of case. Insert
sensor into immersion well. Mount control on im-
mersion well and tighten screw to secure control as
shown in
Figure #4
.
(Shown without LWCO.)
Figure #4
install Relief Valve
16.
(Refer to
Figure #5
)
Locate 3/4”NPT x 90° elbow. Install elbow using 3/4”
A.
NPT boss on rear of control manifold. Elbow must
be installed with outlet facing directly up. Install relief
valve with outlet facing either horizontally right or left
of boiler.
Pipe discharge of relief valve. Installation of the relief
B.
valve must be consistent with ANSI/ASME Boiler
and Pressure Vessel Code, Section IV.
Relief valve discharge piping must be piped near floor to
eliminate potential of severe burns. DO NOT pipe in any
area where freezing can occur. DO NOT install any shut
of valves, plugs or caps.
WARNING
!
Figure #5
ASSEMBLING THE BOILER
