ECR International ULTIMATE PF Series, Installation Manual And Operating Instructions

Page: 14 / 44

14
pipe to the elbow. (Nipple, elbow and overflow
pipe not supplied.) Do not connect directly to
a drain, but leave an air gap. No shutoff of any
description shall be placed between the safety
relief valve and the boiler, or on discharge pipes
between such safety valves and the atmosphere.
Installation of the safety relief valve shall conform
to the ANSI/ASME Boiler and Pressure Vessel
Code, Section IV. The manufacturer is not
responsible for any water damage.
If preferred, one of the top tappings may be
used for an air vent and the relief valve may
be installed in an upper 1½” side tapping of the
casting with a bushing, nipple, and street elbow.
Valve spindle must be vertical.
11. Install angle iron (#5) open edge up to panels
1 and 2 on the remaining exposed side of the
boiler near floor level. Angle iron is attached
with two sheet metal screws to the inside of the
turned edges of panels 1 and 2.
12. Install knobs (#6) on door panel (#7) using #8
machine screws. Install door panel by resting
lower edge inside angle iron (#5) and snapping
top sides into place.
NEAR BOILER SYSTEM PIPING (Indoor Boilers)
1. Antifreeze added to boilers must be non-toxic, and
must of a type specifically intended for use in closed
hydronic heating systems. Under no circumstances
should automotive antifreeze be used.
2. Use of antifreeze in any boiler may reduce
capacity by 10% or more and increase fuel
consumption. Tankless coil performance will fall
as concentration of antifreeze is increased. See
below for water volumes of boilers and piping.
3. Because antifreeze forms slush rather than hard
ice, it is safe to protect only to 10 degrees above
coldest temperature anticipated provided slush
formed can move towards expansion tank.
BOILER WATER VOLUMES
Model Gallons Model Gallons
PF-3 7 PF-3T 10
PF-4 9 PF-4T 12
PF-5 11 PF-5T 14
PF-7 15 PF-6T 16
PF-9 19 PF-8T 20
PIPING WATER VOLUMES
Divide total length of piping in feet by appropriate factor
below to determine volume in gallons.
Pipe Size Copper Pipe Factor Steel Pipe Factor
½” 82.5 63.5
¾” 40.0 36.0
1” 23.3 22.2
1¼” 15.3 12.8
1½” 10.8 9.5
2” 6.2 5.8
RECOMMENDED BY-PASS PIPING
TO AVOID CONDENSATION
As efficiencies increase and slack temperatures
decrease, it becomes increasingly important to keep
boiler warm enough to discourage condensation. All
steel and cast-iron boilers can rust badly if operated
for extended periods at water temperatures below
140 and chimneys can be damaged as well.
The purpose of the by-pass shown in
Figure #6
(above) is to permit the boiler to warm up faster
than the radiation system, thereby decreasing
the potential for condensation in both boiler and
chimney.
JACKET ASSEMBLY (Indoor Boilers) Continued
Figure #6