Lochinvar 000 User Manual

TRAP

GAS INLET

All gas connections must be made with pipe joint compound
resistant to the action of liquefied petroleum and nat u ral gas.  All
piping must comply with local codes and ordinances. Tubing
installations must comply with approved standards and practices.

1. 

 The gas line should be a separate line direct from 

the meter unless the existing gas line is of 
sufficient capacity.  Verify pipe size with your gas 
supplier.

2. 

 Use new, properly threaded black iron pipe free 

from chips.  If tubing is used, make sure the ends 
are square, deburred and clean.  All tubing bends 
must be smooth and without deformation.  Avoid 
flexible gas connections. Internal diameter of 
flexible gas lines may not provide appliance with 
proper volume of gas. 

3.   Install a manual main gas shutoff valve at the units 

gas inlet, outside of the appliance and before the 
gas valve.  Install a  union at the ap 

pli 

ance gas 

line connection for ease of service and removal of 
the gas train.

4.   Run pipe or tubing to the units gas inlet.  If tubing 

is used, obtain a tube to pipe coupling to connect 
the tubing to the units gas inlet.

5. 

 Install a sediment trap in the supply line to the 

units gas inlet. (see Figure 34).

6.

Remove seal over gas inlet to the appliance.

7. 

 Apply a moderate amount of good quality pipe 

compound  (DO NOT use Teflon tape) to pipe only, 
leaving two end threads bare.

8.

Connect gas pipe to inlet of ap 

pli 

ance. Use wrench to

support gas man i fold on the appliance.  

9.   For LP gas, consult your LP gas supplier for expert 

installation.

The manifold gas pressure on the Intelli-Fin appliance is not field
adjustable. The ratio gas valve has been factory set with an internal
bias adjustment to ensure a 1:1 air/gas ratio on operation.
Tampering with this adjustment will void the warranty on the gas
valve assembly and the burn er. An Intelli-Fin supplied with a
properly sized gas line, properly sized meter and a minimum of  4
inch water column of gas supply pressure while firing at full rate
will ensure full burner in put. The manifold pressure supplied to the
burner is a differential pressure.  This pressure is the result of the
difference in two gas pressure mea 

sure 

ments. A differential

manifold gas pressure measurement  should not be made until you
have measured the gas supply pressure.  Gas supply pressure must
be a minimum of  4 inch water column with all appliances on the
gas line firing at full rate before a manifold pressure measurement
is made.  Use the following pro ce dure to check gas supply pressure
with a manometer connected to the inlet pressure tap on the gas line
connection at the rear of the appliance.