PF X4-400, Инструкция по установке и эксплуатации

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Rev. 9/05
operating devices. Check blower airflow switch by first closing main gas cock and disconnecting motor
lead wire. A properly adjusted air switch should open within 3 to 4 seconds when the power is removed
from the motor.
7.15 Clean up area around the burner and instruct owner and/or operator.
7.16 Post Operating Instructions card (inside back cover) close to the burner in clearly visible position.
8. COMBUSTION ARRANGEMENT REQUIREMENTS
8.1 The X4 burner has been designed to fire with high combustion efficiency into combustion chambers with
positive, balanced or negative pressures using natural or LP gas only.
8.2 In order to fire efficiently, the burner requires an adequate supply of combustion air. Ventilation to any
enclosed area should be provided on the basis of ½ square inch of opening for each 1000 BTU/HR input.
This excludes the requirement for any other fired equipment in the area. The enclosed area should not
become excessively hot and under no circumstances should be under a negative pressure.
The burner should be initially set up and serviced at regular intervals (preferably at the beginning of and
mid way through high use periods) by a trained serviceman using the proper test instruments. Failure to
maintain the correct burner settings may result in inefficient gas consumption, premature wear of burner
components or explosion hazard.
8.3 Approximate gas flows and pressures are shown in Table 3 for natural gas and LP gas. Actual firing
rates should be verified by clocking the gas meter and applying the appropriate correction factor.
Table 3
Natural/LP Gas Orifice Pressure Settings/Flow Rate. NOTE: Pressure taken at Combination Valve Pressure
Tap Upstream of Orifice.
X4-400
Main MBH Natural Gas MBH LP Gas Approx. Damper Position
Orifice 1000 BTU/CF 2500 BTU/CF
Diameter/I.D.# 2" 3" 4" 2" 3" 4" MBH Indicator #
.203 1 133 180 198 150 1
.234 2 158 196 227 200 2
.265 3 150 183 210 213 250 287 300 3
.281 4 175 215 248 219 264 292 400 4
.343 5 200 245 280 298 351 389
.406 6 225 274 316 370 431 Note: Pilot pressure is different
.468 7 275 338 390 410 at each damper position and
.500 8 295 360 415 must be set at each position.
None 400
X4-700
Main MBH Natural Gas MBH LP Gas Approx. Damper Position
1000 BTU/CF 2500 BTU/CF Orifice
Diameter/I.D.#
2" 3" 4" 2" 3" 4" MBH Indicator #
.203 1 174 201 200 1
.234 2 162 198 239 300 1 3/4
.265 3 120 148 171 194 227 272 400 2
.281 4 131 163 189 201 250 285 500 3
.343 5 186 230 269 273 335 387 600 4
.406 6 246 302 394 383 470 541 700 6
.468 7 306 372 433 472 578 667 725 9
.500 8 326 394 454 497 609 725 Note: Pilot pressure is different
None 451 563 652 At each damper position and
725 @4.8" Must be set at each position.
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