Elite EL-110 LP Installation Manual Download Page 52

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Boiler Manual

PART 9. START-UP PREPARATION

(CONTINUED)

E. CHECK FOR GAS LEAKS

F. CHECK THERMOSTAT CIRCUIT(S)

1. Disconnect the two external wires connected

to the boiler thermostat terminals (low
voltage terminal strip).

2. Connect a voltmeter across these two

incoming wires with power applied to
thermostat circuits. Close each thermostat,
zone valve and relay in the external circuit
one at a time and check the voltmeter
reading across the incoming wires.

3. There should NEVER be a voltage reading.

4. If a voltage does occur under any condition,

check and correct the external wiring. (This is
a common problem when using 3-wire zone
valves.)

5. Once the external thermostat circuit wiring is

checked and corrected if necessary,
reconnect the external thermostat circuit
wires to the boiler low voltage terminal strip
Allow the boiler to cycle.

G. CONDENSATE REMOVAL

1. The Elite Heating Boiler

is a high efficiency

condensing boiler, therefore, the unit has a
condensate drain. Condensate fluid is
nothing more than water vapor, derived from

c o m b u s t i o n p r o d u c t s , s i m i l a r t o a n
automobile when it is initially started. The
condensation is slightly acidic (typically with
pH of 3 to 5) and must be piped with the
correct materials. Never pipe the condensate
using steel, copper, brass or other materials
that will be subject to corrosion. Plastic PVC
or CPVC pipe are the only approved
materials. A condensate filter, if required by
local authorities, can be made up of lime
crystals, marble or phosphate chips that will
neutralize the condensate. This may be done
by the installer or you may purchase a
condensate neutralizer from Heat Transfer
Products, Inc. (P/N S7350-025)

2. The Elite Heating Boiler

is equipped with a ¾

female socket weld fitting connection that
must be piped to a local drain. It is very
important that the condensate line is sloped
downward away from the Elite Heating Boiler
to a suitable inside drain. If the condensate
outlet on the appliance is lower than the drain,
you must use a condensate removal pump,
available from Heat Transfer Products
(#554200). This pump is equipped with two
leads that can be connected to an alarm or
another type of warning device to alert the
user of a condensate overflow, which, if not
corrected, could cause property damage.

3. If a long horizontal run is used, it may be

necessary to create a vent in the horizontal
run to prevent a vacuum lock in the
condensate line.

4. Do not expose the condensate to freezing

temperatures.

5. It is very important you support the

condensation line to assure proper drainage.

H. FINAL CHECKS BEFORE STARTING BOILER

1. Read Startup Procedures within this manual

for proper steps to start boiler. (See Startup
Report to record steps for future reference.)

2. Verify the boiler and system are full of water

and all system components are correctly set
for operation.

3. Fill condensate trap with water.

4. Verify electrical connections are correct and

securely attached.

WARNING

Before starting the boiler, and during initial
operation, smell near the floor and around the
boiler for gas odorant or any unusual odor.
Remove boiler front door and smell interior of
boiler enclosure. Do not proceed with startup if
there is any indication of a gas leak. Repair any
leak at once.

WARNING

Propane boilers only — Your propane supplier
mixes an odorant with the propane to make its
presence detectable. In some instances, the
odorant can fade, and the gas may no longer
have an odor. Before startup (and periodically
thereafter), have the propane supplier verify the
correct odorant level in the gas.