Assessments - 3, GPA: 4.3
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The control will attempt two additional ignition sequences before going into lockout. The valve relay will be de-energized immediately, and the combustion blower will be turned off following the post purge period. Recovery from lockout requires a manual reset by resetting the thermostat, turning off the main power switch or removing 12-volt power for a period of 5 seconds. If the thermostat is still calling for heat after one hour the control will automatically reset and attempt to ignite the burner again. 13 HITTER Starting Cab or Crew Area 1. Flip Main switch to ON 2. Rotate Comfort Control knob approximately 75% of full travel clock wise. 3. When temperature in the heated area is satisfactory rotate Comfort Control knob counter clock wise until a "click" is felt in the knob. Now the cabin temperature is set. The Comfort Control will maintain the current temperature. Some adjusting will be necessary until the "perfect" setting is reached. Cargo or Beverage 1. Flip Main switch to ON 2. Rotate Comfort Control knob approximately 50% of full travel clock wise. 3. If using calibrated room thermostat, set it to the desired setting. If this thermostat is to control the heater then set the Comfort Control to the lowest setting. 4. Adjust, as necessary to maintain desired temperature. Heating The heater will run as long as fuel and power are supplied to it. If the supply voltage is below 9.0VDC when the heater is started then it will go into fault mode. (See fault codes) As long as the green light is on and the red light is not blinking, the heater is ready to run. Shutdown 1. Flip Main switch to OFF. The green indicator light should go out immediately. 2. The heater will go into a 60 second postpurge, then shut off. 3. The Comfort Control does not have to be turned down. It is recommended for ease of operation that you set it and forget it. 14 Section Four HITTER TROUBLESHOOTING and DIAGNOSTICS Fault Codes The PH20-30A has built in diagnostic capabilities. When the microprocessor-based control detects a fault, it displays an error code by flashing the red LED. To clear an error code, turn off the main switch. (Except for low voltage) Table 3 Error Codes Number of Flashes Problem Remedy 1 Combustion pressure fault. Pressure switch did not Check voltage at heater while running. Check combustion pressure tube between burner * close during TFI head and pressure switch. Check combustion air inlet for blockages. Check motor 2 Flame is detected in the combustion chamber at a time it should not be. Check solenoid valve for open condition. 3 Burner has failed to ignite after TFI sequence Check fuel supply. * The blower will run for approximately 5 minutes before this code is flashed. During this time, the unit will not heat. 15 HITTER T roubleshooting The diagnostic features of the ECS will cover most problems that you may have with your heater. Table 5 Troubleshooting chart addresses some other problems that may arise TABLE 5. TROUBLESHOOTING CHART Trouble Cause and/or Remedy Heater fails to start -motor does not run, green light is not on. 1. Check fuse. 2. Check all electrical connections including ground. 3. Check motor. Replace if necessary. 4. Is it turned on? Heater fails to start -motor does not run, green light is on. 1. Check to see if Comfort Control is turned up Burner Head Maintenance The PH20-30A is designed so that the igniter should never have to be replaced. If for some reason the igniter is broken or the burner head requires cleaning and the igniter is removed, the igniter gap should be checked. Set the gap to .125" +.03 -00. It is important that the gap be set correctly for flame ignition and flame sensing. To set the spark gap: 1. bend the center electrode slightly 2. check with feeler gage between igniter tip and center electrode NOTE: igniter should not need to be bent. Adjust center electrode only nj Ol ■ f o b 16 HITTER Preseason Maintenance, Annual Service The following service procedures, if performed as indicated, will help ensure proper operation and extend the life of your heater. Description Daily Weekly Monthly Pre- season Inspect propane tank, regulator, and excess flow valve * * Inspect combustion air inlet for obstructions * * Inspect exhaust pipe for blockages * * Clean combustion blower * Oil motor bearings * Inspect fuel lines for leaks using leak detector * * Inspect and if necessary tighten mounting hardware * Have propane tanks inspected for excess oil, desiccant, water etc. * Check electrical connections including ground * * Operate heater during non-heating season * * Service Tip: Use high temp anti-seize compound on burner head screws. 17 HITTER Section Five PARTS LIST General This section lists and illustrates the major parts of your model PH20-30A Hunter heater. In general, attaching parts such as screws, nuts and lock washers have not been listed or illustrated since their appl...
Este manual também é adequado para os modelos :Os termostatos - PH20-30A (383.88 kb)
Os termostatos - PH20-30A (383.88 kb)