Loading ...
Loading ...
Loading ...
1. Disconnect wires connected to the Input1, Input2 and
Input3 thermostat terminals (see Field wiring, beginning
on page52 for low voltage terminal locations and applica-
tion information). Mark the wires before removing to avoid
wiring errors when re-connecting them.
2. Connect a voltmeter across each pair of incoming wires.
Close each thermostat, zone valve and relay in the exter-
nal circuits one at a time and check the voltmeter reading
across the incoming wires.
3. ThereshouldNEVERbeavoltagereading.
4. If a voltage does occur under any condition, check and
correct the external wiring.
DONOTconnectthethermostatterminalsto
3-wire zone valves
. is could cause control
damage.
5. Once the external thermostat circuit wiring is checked and
corrected if necessary, reconnect the external thermostat
circuit wires.
Inspect/checkcondensatelinesandttings
1. Inspect the condensate drain line, condensate PVC t-
tings and condensate trap. (See page49 for component
locations.)
2. Pour water into the top of the boiler’s ½” PVC condensate
tee and check for any leaks in the condensate drain line or
ttings. Repair any leaks.
Fillcondensatetrapwithwater
1. Loosen the hose clamp securing the right end of the condensate
trap to the PVC reducing elbow (see page49 for details).
2. Slide the trap hose end o of the elbow.
3. Fill the trap with fresh water to within an inch of the end of
the hose.
4. Replace trap hose on PVC reducing elbow and tighten the
hose clamp.
e condensate trap must be lled with water during
all times of boiler operation to avoid ue gas emission
from the condensate drain line. [Prime the conden-
sate trap (by pouring water into the outlet tee while
restricting ow in drain tube) if boiler has been out
of service for an extended period.] Failure to ll the
trap could result in severe personal injury or death.
Read the instructions to adjust and set up the control module.
Verify that the boiler model is set correctly in the control, and
that it displays correctly.
Verify that the boiler and system are full of water and all system
components are correctly set for operation.
Fill vent condensate trap with water (by removing hose clamp
and hose at PVC reducing elbow). Replace hose on PVC reduc-
ing elbow and tighten clamp.
Verify electrical connections are correct and securely attached.
Inspect vent piping and air piping for signs of deterioration from
corrosion, physical damage or sagging. Verify air piping and
vent piping are intact and correctly installed per this manual.
1. Follow the Operating Instructions, Figure87,page89.
2. e control display will show installed sensors when rst pow-
ered. Make sure the right sensors are detected and the correct
boiler model is identied. If not, determine the cause and cor-
rect before proceeding.
1. Check for loose connections, blown fuse or service switch o?
2. Are external limit controls (if used) open? Is boiler water tem-
perature above 200 °F?
3. Are thermostats set below room temperature?
4. Is gas turned on at meter and boiler?
5. Is incoming gas pressure less than the minimum values given
on page18?
6. Are control settings correct for the application?
7. Is the warm weather shut down activated?
8. If none of the above corrects the problem, refer to Troubleshoot-
ing, beginning on page102.
Part number 550-100-211/0122
– 88 –
Before starting the boiler, and during initial operation,
use a leak detector or smell near the oor and around
the boiler for gas odorant or any unusual odor. Remove
boiler front door and smell the interior of the boiler
jacket.
Donotproceedwithstartupifthereisany
indicationofagasleak.Repairanyleakatonce
.
DONOTadjustorattempttomeasuregasvalveout-
letpressure.
e gas valve is factory-set for the correct
outlet pressure. is setting is suitable for natural gas
and propane, requiring no eld 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.
Propaneboilersonly — Your propane supplier mixes
an odorant with the propane to make its presence de-
tectable. In some instances, the odorant can fade, and
the gas may no longer have an odor. Before startup
(and periodically thereaer), have the propane supplier
verify the correct odorant level in the gas.
220 /29 9/3 00 /39 9
Loading ...
Loading ...
Loading ...