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Installation & Operation Manual
10 Start-up
Check for gas leaks
Before starting the boiler, and during
initial operation, smell near the floor and
around the boiler for gas odorant or any
unusual odor. Remove the front access
panel and smell the interior of the boiler
enclosure. Do not proceed with startup if
there is any indication of a gas leak. Use
an approved leak detection solution.
Repair any leaks at once.
DO NOT adjust or attempt to measure gas
valve outlet pressure. The gas valve is
factory set for the correct outlet pressure.
This setting is suitable for natural gas and
propane, requiring no field adjustment.
Attempting to alter or measure the gas
valve outlet pressure could result in
damage to the valve, causing potential
severe personal injury, death, or
substantial property damage.
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.
Check thermostat circuit(s)
1. Disconnect the two external wires connected to each of the
room thermostat terminals on the connection board.
2. Connect a voltmeter across these two incoming wires. 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 connection board.
Inspect/fill condensate system
Inspect/check condensate lines and fittings
1. Inspect the condensate drain line, condensate PVC fittings
and condensate trap.
Fill condensate trap with water
1. Remove the bezel as depicted in FIG. 8-1 on page 50 of this
manual.
2. Remove the PVC cap retaining screw from the PVC cap
(FIG. 10-1).
3. Remove the 2 inch PVC cap with the switch located at the
top of the trap (FIG. 10-1).
4. Fill with fresh water until the water begins to pour out of the
drain.
5. Replace the cap. Press the cap onto the trap until the cap
makes contact with the drain.
6. Replace the retaining screw.
7. Reinstall bezel.
The condensate trap (FIG. 10-1) must be
filled with water during all times of boiler
operation to avoid flue gas emission from the
condensate drain line. Failure to fill the trap
could result in severe personal injury or
death.
Figure 10-1 Condensate Trap
ƽ WARNING
ƽ WARNING
ƽ WARNING
ƽ WARNING
Clean/Inspect Trap Assembly
1. Remove the clean out cap on the bottom of the trap. Let the
condensate and any debris drain out.
2. Refill the trap according to the instructions above.