Access To Ports On Outdoor Furnace - Central Boiler CL 4030 Owner's Manual

Access to Ports on Outdoor Furnace

The upper ports are the hot supply outlets and the lower
ports are the return inlets. This configuration allows for
mounting the circulation pumps on the outdoor furnace.
Fig. 9 through Fig. 13 show different configurations for
proper supply and return line and pump installations.
The Taco 009 is a medium flow, high head pressure
pump that requires an adequate amount of pressure on
the outlet side to prevent the motor from overloading.
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 (p/n 2482) for more information.
1 - Pump Configuration (Taco 007)
Fig. 9
12
3- Pump Configuration (Taco 007)
Fig. 10
1 - Pump and 3- Pump Parts List (Taco 007)
Fig. 11
Section 1 - Furnace Installation