Hoshizaki HUR40A(-D), HWR40A(-D), HUR96A(-D), HUR68A(-D), HWR68A(-D) service manual Contents

Please review this manual. It should be read carefully before the unit is serviced or maintenance operations are performed. Only qualified service technicians should service and maintain the unit. This manual should be made available to the technician prior to service or maintenance.

	CONTENTS
I. Specifications		5
A. Nameplate Ratings		5
B. Dimensions		5
1. HUR40A, HUF40A		6
1a. HUR40A-D, HUF40A-D		6
2. HWR40A, HWF40A		7
2a. HWR40A-D, HWF40A-D		7
3. HUR68A, HUF68A		8
3a. HUR68A-D, HUF68A-D		8
4. HWR68A, HWF68A		9
4a. HWR68A-D, HWF68A-D		9
5. HUR96A		10
5a. HUR96A-D		10
6. HWR96A		11
6a. HWR96A-D		11
II. General Information		12
A. Construction		12
B. Sequence of Operation and Timing Charts		13
1.	Refrigerators – Continuous Operating Mode	13
2.	Freezers – Continuous Operating Mode	15
3.	Refrigerators – Energy Saving Operating Mode	17
4.	Freezers – Energy Saving Operating Mode	19
C. Control Board		21
1.	Start-Up Delay	21
2.	Control Board Layout	22
D. Settings and Diagnostics		23
1.	Gaining Access to Settings and Diagnostics	23
2.	Temperature Display	24
	a) Switching the Display Between Fahrenheit and Celsius (F5)	24
	b) Adjusting the Setpoint Temperature	24
	c) Cabinet Temperature Correction (calibration factor)	25
3.	Settings and Diagnostics Menu	26
	a) Defrost Interval (F0)	27
	b) Defrost Termination Temperature (F1)	27
	c) Setpoint Temperature Differential (F2)	28
	d) High Temperature Alarm Delay Time (F3)	29
	e) Low Temperature Alarm Delay Time (F4)	29
	f) Temperature Display Scale (F5)	30
	g) Alarm History (F6)	30
	h) Compressor Run Time (F7)	31