Hastings COUNTERFLO CF SERIES, Инструкция по установке и обслуживанию

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d. Combustion air and exhaust air proving switches are factory set for 0.2” to 0.4”
W.C.
2. Open pilot gas cock and purge air from gas line through plugged tee in pilot line.
Caution: Use a lighted torch to ignite the gas as air is purged from the pilot gas line.
Do not depend on sensing the odor of gas to determine if the gas line is purged.
3. On oil systems, remove pipe plug from gauge port of oil pump (see Figures 13 and 14)
for purging air from oil system. Use a bucket to catch oil from this opening during the
purging process. A length of copper tubing will eliminate oil mess. Open manual oil
valve in the oil suction line.
4. Push reset button on unit programming controller.
5. Close main disconnect switch.
6. The On-Off burner switch on the master control panel will operate the fans.
7. All three phase motors were properly phased during factory testing. If rotation is
reversed, interrupt main power supply and interchange any two of the incoming power
leads. Reestablish power and recheck fan operation.
8. On three phase units, the starter contacts should pull in and hold quietly without
“clatter”. If they do not operate quietly, check immediately for proper line voltage.
Even temporary low voltage at start-up will cause constant operating trouble and must
be corrected before the Counterflo heater is placed in service.
9. Recheck all set screws on motor sheave and fan sheave. Check alignment of belt(s)
and pulley(s). Run blower for a few minutes and adjust motor take-up if necessary.
Motor is mounted on an adjustable base shown on Figure 9. Do not over-tighten belt(s)
since excessive tension will reduce belt life and cause excessive load on bearings.
After initial start, allow the belts a few days’ running time to become seated in pulley
grooves, then readjust as necessary. Do not roll belts over grooves or sheaves as this
will result in permanent belt damage.
10. Open manual hand valves. After manual valves have been opened, burner should ignite
automatically if thermostat is in control circuit.
11. The burner assembly for either gas or oil fired Counterflo heaters generally requires re-
adjustment of the flame test settings for proper operation under actual field conditions.
The most accurate guides to proper burner adjustment are:
a. Flame travel within the combustion chamber.
b. Temperature and CO2 content of the flue gasses.
c. Proper action of the flame sensor.
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