Troubleshooting, Maintenance | HP N2H3, H2H3 guide

INSTALLATION INSTRUCTIONS	3-phase R-22 Split System Heat Pump

TROUBLESHOOTING

Some models are factory equipped with the Comfort Alertt Diagnostics device in the control box (refer to Figure 17). Comfort Alert provides around-the-clock monitoring for common electrical problems, compressor defects, and broad system faults. If trouble is detected, an alert code is displayed with a flashing LED indicator.

NOTE: Comfort Alert is required for unit operation. Comfort Alert provides active safety protection and compressor may be shut down. Alert codes are listed in Figures 18 and 19.

Comfort Alert is factory wired and requires no modification. Low voltage lead wires are provided in the control box for connection to thermostat wires (use wire nuts).

The Comfort Alert device operates by monitoring the compressor power leads and the thermostat demand signal (Y terminal). It draws constant 24 VAC power at the R and C terminals.

	Figure 17	Comfort Alertt Diagnostics
	Figure 17	(some models)
		(some models)

		POWER LED
	Y2	Second Stage
		Second Stage
	Y	Compressor Signal
	Y	First Stage
	DATA	First Stage
	DATA	Compressor Signal
	PORT
	L	24 VAC for Thermostat
	R	Indicator
	R	24 Volt Power
		24 Volt Power
	C	24 Volt Common
	P	24 Volt Common
	P	24 Volt Compressor
		24 Volt Compressor
	DC	Protection Function
	SOL	DC Compressor
		Solenoid
		ALERT LED
		TRIP LED

Compressor Wires

Pass Through Holes (3)

MAINTENANCE

Condensate Drain

During the cooling season, check monthly for free flow of drainage and clean if necessary.

Cleanliness

These tips will help keep the air conditioner looking better and working more efficiently:

1.Free flow of air is essential. Keep fences, shrubs, trash cans, and other obstructions at least 18 inches from all coil inlets.

2.Keep the coil free of grass clippings, leaves, weeds, and other debris.

NOTE: Coil may occasionally require cleaning with a liquid solution. The coil must be cold when cleaning. Use an alkaline based cleaner only. Cleaning a hot coil or using an acid based cleaner will remove the paint from the fins and may clog the coil.

3.Never use a weather cover over the outdoor unit unless it is a ventilated type or made of breathable fabric that will allow moisture to evaporate rapidly. A cover that holds moisture in the unit will cause more rust build-up and damage than normal exposure to weather.

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