M-43-01
Lufran Single Outlet Manual
Revision - Date: 08 – 04/06/15
- 21 -
Plumbing:
The plumbing installation of this unit should only be performed by qualified technicians.
Verify that the water supply and purge gas
supply is shut off, and any necessary
lockout/tagout devices are properly installed.
Refer to the MODEL NUMBER EXPLANATION and the model number of this unit for
the specific inlet/outlet plumbing connections. The various plumbing connections are
located as follows:
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.
Figure 10: Water, Gas Plumbing Connections
