Heatcraft Refrigeration Products H-IM-82C Electrical Connections, Display

Electrical Connections

WARNINGS:

The electrical connections must only be completed by a qualified electrician;

A power supply other than the type specified may seriously damage the system;

	Separate as much as possible the probes and digital input
	signal cables from the cables carrying inductive loads
	and power cables to avoid possible electromagnetic
	disturbance. Never lay power cables (including the
	electrical cables) and probe signal cables in the same
3.Controllers	conduits. Do not install the probe cables in the immediate
	vicinity of power devices (contactors, circuit breakers or
	devices. The probes must be connected using shielded
	similar);
	Reduce the path of the probe and sensor cables as much
	as possible, and avoid spiral paths that enclose power
	cables (minimum cross-section of each wire: 0.5 mm2);
	Avoid direct contact with internal electronic components;
	Connection errors (and connections other than those
	indicated in this manual) may involve danger to the safety
	of the users and cause faults on the instruments and the
	components connected;
	Fit the unit with all the electromechanical safety devices
	required to guarantee correct operation and the complete
	safety of the user.
	CONTROLLER WIRING

12

Installation and Operations Manual

Display

		NORMAL OPERATION			START
BUT. NO. FUNCTION
		ON	OFF	flash	UP
1	compressor	on	off	call	on
2	fan	on	off	call	on
3	defrost	on	off	call	on
	auxiliary	output	output
4	output		not	–	on
		active
	(AUX)		active
		RTC	RTC not
		available,
		enabled	available
		(tEN=1)	or not		on (if the
			enabled
5	clock (RTC)	and at			clock is
			(tEN=0)
		least			fitted)
			or no
		one time
			time
		band has
			band set
		been set)
		alarm in	no
6	alarm		alarm in	–	on
		progress
			progress
		three digits with decimal point and range
7	digits	-199 to 999. See parameters /4, /5, /6 for
		the type of probe displayed, values in
		°C/°F and decimal point