CleaverBrooks profire q, Установка, эксплуатация и обслуживание

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Operation
3-2 750-370
ProFire Q Series Manual
On initial startup, it is recommended that the main gas shutoff cock remain closed until the programmer has cycled
through pre-purge and ignition sequences to determine that the main gas valve opens. Turn the burner switch “OFF”
and let the programmer finish its cycle. Check to see that the gas valve closes tightly. Set the high and low gas pressure
switches.
Check for leaks and determine there is adequate gas pressure available at the burner for operating at full capacity.
Check with the local utility if necessary. Check gas pressure at the main burner. Close the manual gas valve.
3.1.2 — Burner Settings
To ensure reliable and safe burner performance, the fan speed must be adjusted, relative to the established flow rates, to
provide the correct amount of air for complete efficient combustion.
For on-off operation, adjust the main gas regulator to set the correct rate.
For low-high-low operation, separate low fire and high fire adjustments must be made as these are not preset at the
factory. Low and high gas settings are made on the Kromschroeder gas/air ratio regulator valve. Low fire and high fire
fan speeds are adjusted on the UGB board trim potentiometers. Refer to the Kromschroeder and UGB operation manual
for adjustment information. See Section 3.7.3 for valve and UGB adjustment.
For full modulation operation, the fan speed and gas settings are not preset at the factory, and must be checked and
adjusted prior to placing the burner into initial service, or after conducting any service work that may have altered its
settings. The modulating firing rate is controlled by a boiler or vestibule mounted sensor from a temperature or
pressure controller capable of generating a 4-20 mA output signal (minimum 500 ohm impedance). for optimal
efficiency the controller used should be capable of PID load control. The purge rate, ignition position, minimum firing
rate, maximum firing rate and fuel-air ratio throughout the firing range is determined by settings made in the Siemens
LMV37 display. Refer to the Siemens LMV37 operation manual for further information. See Section 3.7.4 for control
adjustment.
See the chart below for the proper air-inlet size:
3.1.3 — Combustion Settings
Fuel and air flow rates are individually adjusted at low fire and at high fire to achieve rated heat input, firing rate
turndown, optimum efficiency, safe operation, and the ability to cope with environmental changes (including air
Burner Model Air-Inlet Size (in.)
Q6-037 1.25
Q6-055 1.50
Q6-075 1.80
Q6-100 2.25
Q6-130 2.95
Q6-150 -
Q8-175 3.45
Q8-200 3.80
Q8-250 -