35
M-43-25 LUF-Series Lufran Manual
Revision - Date 03-01-04-18 Standard outlet, Standard Interface
Installation (Continued):
Plumbing (Continued):
The various plumbing connections are located as follows:
Figure 24: Plumbing Connections (stack light option shown)
Refer to the facilities print for your specific heater model to identify the exact size and type of plumbing
connections that are provided on your unit.
Column Drain:
The customer must supply the means to drain the heating columns, which will be necessary in the case of
replacing a heating column or some other items. The following describes a recommended means of
column drain:
1) Install a service shutoff valve before the inlet and after the outlet of the heater.
2) After the inlet service shutoff valve, install a 3-way valve on the inlet side of the heater. This
valve should be plumbed to direct water flow from the water supply to the heater, and then
from the heater to a non-pressurized drain.
3) Before the outlet service shutoff valve, install a tee fitting to the outlet side of the heater. The
tee portion of the fitting should be closed.
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