38
9.4 Boiler Start-up and Operational Test
1.
Verify air is purged from hydronic piping
2.
System test pumps - verify each pump is
operational
3.
Verify gas piping
• Con
fi
rm pressure test. See section 7.3.
• Visually inspect piping to determine there are no
open
fi
ttings or ends, and all valves at unused
outlets are closed and plugged/capped.
• Purge air from piping
• Check piping and connections for leaks
immediately after gas is turned on. Shut off
gas supply and make necessary repairs if leaks
found.
4.
Follow OPERATING INSTRUCTIONS to initiate boiler
operation. See section 10.
5.
Inspect combustion air and vent piping. Verify pipe
is not leaking and terminations are unobstructed
and vent gas discharge is not a nuisance or hazard.
6.
Verify boiler functions.
7.
Inspect condensate disposal system. Verify
condensate
fl
ows adequately and is disposed
properly.
8.
Check control module operation.
9.
Check
fi
eld sourced limits, low water cutoffs, etc.
per manufacturer's instructions.
9.5 Check Combustion
Natural Gas
1.
Measure input. English units*
• Turn off gas to all other appliances.
• Activate some heating zones to dissipate heat.
• Set boiler on high
fi
re.
• Use ½, 1 or 2 cu ft dial on gas meter. Measure
time required for one or more complete
revolutions. Measure time for 1-2 minutes.
• Calculate input.
Input (MBH)
=
3600 x cu ft
seconds
Example: Gas
fl
ow from
Meter = 2 cu ft
Measured time = 72 seconds
Rate (MBH)
=
3600 x 2 cu ft
=
100 MBH
72 seconds
*Metric - See Glossary
2.
Compare measured input to table. Adjust input rate
if needed using Table 12 below.
Table 1
2 - Rate @ High Fire
Rate @ High Fire
Size
From
To
050
45
51
075
65
76
100
90
102
150
140
153
200
185
204
299
285
315
Natural Gas and Propane
3.
Measure CO
2
at high
fi
re and compare to table.
Adjust CO
2
if needed using
fi
gure 9-3 & 9-4. See
fi
gures 9-5 and 9-6 for combustion air analyzer
port.
9 - START UP PROCEDURE
Содержание DKVLT-050
Страница 47: ...47 13 TROUBLE SHOOTING ...
Страница 51: ...51 13 TROUBLE SHOOTING ...
Страница 53: ...53 13 TROUBLE SHOOTING ...
Страница 62: ...62 Supply Water Temperature Sensor Resistance Chart 13 TROUBLE SHOOTING ...
Страница 64: ...64 14 WIRING DIAGRAM 14 1 Connection Diagram 050 075 100 150 200 MBH ...
Страница 66: ...66 14 WIRING DIAGRAM 14 3 Connection Diagram 299 MBH EXTERNAL PUMP RELAY LIMIT OF 1 AMP PER PUMP SEE SECTION 8 ...
Страница 83: ...83 NOTES ...
Страница 84: ...ECR International Inc 2201 Dwyer Avenue Utica NY 13501 web site www ecrinternational com ...