19
Section 6 - System Installation
The Taco 014 is a high flow, high head pressure pump
that requires an adequate amount of head pressure on
the inlet side to prevent cavitation. Therefore, a Taco
014 may need to be mounted lower near the base of the
furnace, and on the 1-1/4" bung.
The Taco 007 is a medium to high flow, low head
pressure pump. In a very low-resistance system (e.g.,
short length of supply and return lines, only a flat
plate heat exchanger, etc.), the 007 pump may need to
be mounted lower near the base of the furnace or on
the 1-1/4" bung to prevent cavitation at high water
temperatures.
NOTE: See the Hydronic Component Selection
Guide for more detailed information.
The following guidelines must be adhered to when
installing the circulation pump(s).
WARNING
Maximum load of the outlet on the outdoor
furnace is 5A, 120VAC, and 60Hz.
A. The pump motor must be installed in a horizontal
position.
B. The junction box must not be located below the
pump motor (see Fig. 23). If necessary, remove the
four screws and rotate the pump body.
Fig. 23
Junction Box
on bottom
Junction Box
on side
Junction Box
on top
Correct
Correct
Incorrect
C. Do not operate the circulation pump until the entire
system has been filled with water and checked for
leaks or the pump may be damaged.
D. Insulate the areas around the supply and return lines
(Fig. 24) and pump(s) being careful not to block the
area around the louvers; then install and secure the
side and back panels.
Fig. 24
1" CENTRAL PE
X
1" CENTRAL PE
X
1" CENTRAL PE
X
1" CENTRAL PE
X
1" CENTRAL PE
X
1" CENTRAL PE
X
Side View
Rear View
1" CENTRAL PE
X
ENTRAL PE
X
1"
C
ENTRAL PE
X
Be sure to insulate around the
pump(s), valve and water lines.
NOTE
NOTE: At least one circulation pump must run
continuously to ensure proper operation of the
outdoor furnace.
The circulation pump(s) must be installed in the
supply line(s) with the arrow on each pump pointed
away from the outdoor furnace. In order to avoid
circulation problems, do not install the pump(s) in the
return line(s).
Fig. 25
If water is to be pumped uphill, the
circulation pump must be located
in the hot supply line on the furnace.
Building to be heated
Ground
Level
Less than 4 ft
Water Level
The pump(s) must be located near the base of the
outdoor furnace if the system has a high-flow pump or
very low resistance on the outlet side of the pump. For
example, if the outdoor furnace is 20 feet (6 meters)
from the building and pumping water through one-
inch pipes, a heat exchanger, and back to the outdoor
furnace, the pump needs to be mounted with four feet of
water above the pump.
NOTE: See the Hydronic Component Selection
Guide for more detailed information.
