Friedrich R410A manual Electronic Control Board Features

ELECTRONIC CONTROL BOARD FEATURES

The new Friedrich Vert-I-Pak has state of the art features to improve guest comfort and conserve energy. Through the use of specifi cally designed control software, Friedrich has accomplished what other Manufacturer’s have only attempted – a quiet, dependable, affordable and easy to use Vert-I-Pak.

Below is a list of standard features on every Friedrich VPAK and their benefi t to the owner.

Quiet Start/Stop	The fan start and stop delays prevent abrupt changes in room acoustics due to the compressor energizing
	or stopping immediately. Upon call for cooling or heating the unit fan will run for fi ve seconds prior to en-
Fan Delay	ergizing the compressor. Also, the fan off delay allows for “free cooling” by utilizing the already cool indoor
	coil to its maximum capacity by running for 30 seconds after the compressor.
Remote Thermostat	VPAK units are controlled by a wired remote wall thermostat.
Operation
Internal Diagnostic	The new Friedrich digital VPAK features a self diagnostic program that can alert maintenance to compo-
	nent failures or operating problems. The internal diagnostic program saves properties valuable time when
Program
	diagnosing running problems.
Service Error Code	The self diagnosis program will also store error codes in memory if certain conditions occur and correct
	themselves such as extreme high or low operating conditions or activation of the room freeze protection
Storage	feature. Storing error codes can help properties determine if the unit faced obscure conditions or if an error
	occurred and corrected itself.
Random	Multiple compressors starting at once can often cause electrical overloads and premature unit failure.
	The random restart delay eliminates multiple units from starting at once following a power outage or initial
Compressor Restart
	power up. The compressor delay will range from 180 to 240 seconds.
Heat Pump Units	The new Friedrich VPAK uses a digital thermostat to accurately monitor the outdoor coil conditions to allow
Digital Defrost	the heat pump to run whenever conditions are correct. Running the VPAK in heat pump mode save energy
Thermostat	and reduces operating costs. The digital thermostat allows maximization of heat pump run time.
Instant Heat	Heat pump models will automatically run the electric heater during compressor lock-out to quickly provide
	heat when initially energized, then return to heat pump mode. This ensures that the room is heated quickly
Heat Pump Mode
	without the usual delay associated with heat pump units.
	The room air sampling feature maintains a balanced temperature throughout the room by circulating the
Room Air	air for 90 seconds once every 9 minutes that the unit is not running when it is set to cooling or heating
	mode. By circulating the air, the unit can detect hot or cold areas in the room and operate the unit to cool
Sampling Feature
	or warm the room as necessary. This function is only available when the fan mode is set to ‘AUTO’ during
	COOL or HEAT Mode.
	All electronic VPAK units have low voltage terminals ready to connect a desk control energy management
Desk Control Ready	system. Controlling the unit’s on/off operation from a remote location like the front desk can reduce energy
	usage and requires no additional accessories at the VPAK.
Indoor Coil Frost	The frost sensor protects the compressor from damage in the event that airfl ow is reduced or low outdoor
	temperatures cause the indoor coil to freeze. When the indoor coil reaches 30°F the compressor is
Sensor	diabled and the fan continues to operate based on demand. Once the coil temperature returns to 45°F the
	compressor returns to operation.
Auxiliary Fan Ready	The VPAK features a 24V AC terminal for connection to a relay that may be used to operate an auxiliary
	fan to transfer air to adjoining rooms. Auxiliary fans can provide air conditioning to odd shaped rooms.

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