Follett 25C1400A, 25CI400W Service Manual

Ice and Water Dispensers

25CI400A/W, 25HI400A, 50CI400A/W, 50HI400A

Order parts online www.follettice.com

Installation, Operation and Service Manual

25CI400A Countertop Dispenser	25CI400A/W Lever	25HI400A Wall Mount Dispenser
with SensorSAFE™ option	Countertop Dispenser

Following installation, please forward this manual to the appropriate operations person.

801 Church Lane • Easton, PA 18040, USA		© Follett Corporation
Toll free [phone] • [phone]
		00187153R01
Fax [phone] • www.follettice.com

Contents

Welcome to Follett. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Before you begin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Contact Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

Specifi cations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Electrical . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Ambient . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Plumbing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Ventilation and service clearances . . . . . . . . . . . . . . . . . 5 Uncrated weight . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Before you begin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Installing countertop dispensers with

rear exiting utilities (no legs) . . . . . . . . . . . . . . . . . . . . . . 6 Installing countertop dispensers with

bottom exiting utilities. . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Installing wall mount dispensers . . . . . . . . . . . . . . . . . . . 8

Icemaker cleaning & sanitizing . . . . . . . . . . . . . . . . . . . . . . . .10 Quarterly air filter cleaning. . . . . . . . . . . . . . . . . . . . . . . .10 Semi-annual icemaker cleaning & sanitizing. . . . . . . . . .10 Cleaning solution . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10 Sanitizing solution . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10 Start-up following cleaning. . . . . . . . . . . . . . . . . . . . . . . .11

Dispenser cleaning & sanitizing . . . . . . . . . . . . . . . . . . . . . . .12 Cleaning solution . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12 Sanitizing solution . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12 Daily cleaning. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12 Weekly cleaning. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12 Cleaning SensorSAFE lens . . . . . . . . . . . . . . . . . . . . . . .12 Semi-annual cleaning and sanitizing

of dispenser hopper . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12

Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13 Icemaker operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13 The icemaking process . . . . . . . . . . . . . . . . . . . . . .13 Ice harvest system diagram . . . . . . . . . . . . . . . . . . .13

Disassembly and replacement instructions . . . . . . . . . . .14 Dispense wheel removal and installation . . . . . . . . .14 Drive bar removal . . . . . . . . . . . . . . . . . . . . . . . . . . .14 Wheel motor assembly removal . . . . . . . . . . . . . . . .14 Ice transport tube replacement . . . . . . . . . . . . . . . .14

Icemaker removal. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15 Evaporator disassembly . . . . . . . . . . . . . . . . . . . . . .18 Evaporator reassembly. . . . . . . . . . . . . . . . . . . . . . .18 Gearmotor replacement . . . . . . . . . . . . . . . . . . . . . .19 Fan removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19

Electrical systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 Electrical component locations . . . . . . . . . . . . . . . . . . . 20 Wiring diagram - lever dispense model . . . . . . . . . . . . . 21

Wiring diagram - SensorSAFE model . . . . . . . . . . . . . . 22

Icemaker operational and diagnostic sequences . . . . . . . . . 23 Circuitry notes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 Normal operation – Stage 1 . . . . . . . . . . . . . . . . . . 24 Normal operation – Stage 2 . . . . . . . . . . . . . . . . . . 24 Normal operation – Stage 3 . . . . . . . . . . . . . . . . . . 25 Normal operation – Stage 4 . . . . . . . . . . . . . . . . . . 25 Normal operation – Stage 5 . . . . . . . . . . . . . . . . . . 26 Normal operation – Stage 6 . . . . . . . . . . . . . . . . . . 26 Diagnostic sequence – Stage 7 . . . . . . . . . . . . . . . 27 Diagnostic sequence – Stage 8 . . . . . . . . . . . . . . . 27 Diagnostic sequence – Stage 9 . . . . . . . . . . . . . . . 28 Diagnostic sequence – Stage 10 . . . . . . . . . . . . . . 28 Refrigeration cycle . . . . . . . . . . . . . . . . . . . . . . . . . 29

Refrigeration data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 Ice production . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 Ice capacity test . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 Compressor current draw . . . . . . . . . . . . . . . . . . . . 30 Gearmotor data . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 Refrigeration system. . . . . . . . . . . . . . . . . . . . . . . . 30 Icemaker charge specifications . . . . . . . . . . . . . . . 30 Refrigerant replacement requirements. . . . . . . . . . 30 Evacuation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 Ambients. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

Dispenser troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . 31 Before calling for service . . . . . . . . . . . . . . . . . . . . . . . . 31 Lever model troubleshooting guide . . . . . . . . . . . . . . . . 31 SensorSAFE model troubleshooting guide . . . . . . . . . . 31 Board guide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31 Lens/sensor troubleshooting . . . . . . . . . . . . . . . . . 31

Icemaker troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

Dispenser replacement parts . . . . . . . . . . . . . . . . . . . . . . . . 34 Dispenser exterior . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34 Dispense chute and splash panel areas –

lever models. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35 Dispenser electrical box – lever models . . . . . . . . . . . . 36 Dispense chute and splash panel areas –

SensorSAFE models . . . . . . . . . . . . . . . . . . . . . . . . . . . 37 Dispenser electrical box – SensorSAFE models. . . . . . 38 Wheel motor and drive system . . . . . . . . . . . . . . . . . . . 39 Water and drain . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

Icemaker replacement parts . . . . . . . . . . . . . . . . . . . . . . . . . 41 Evaporator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41 Air-cooled icemakers . . . . . . . . . . . . . . . . . . . . . . . . . . . 42 Water-cooled icemakers. . . . . . . . . . . . . . . . . . . . . . . . . 44 Icemaker electrical components . . . . . . . . . . . . . . . . . . 46

Follett Corporation Equipment Return Policy

Follett equipment may be returned for credit under the following conditions:

1.The equipment is new and unused.

2.A return authorization number has been issued by customer service within 30 days after shipment.

3.Follett receives the equipment at the factory in Easton, PA within 30 days after issuance of the return authorization number.

4.The equipment must be returned in Follett packaging. If the packaging has been damaged or discarded, Follett will forward, at the customer’s expense, new packaging.

Note: Return freight charges are the responsibility of the customer. If equipment is returned and is damaged because of improper packaging, Follett Corporation will not be held responsible.

Credit will be issued when: The equipment has been inspected by Follett and deemed suitable to be returned to stock.

Note: A 15% restocking charge will be deducted from the credit. If the cost to return the product to stock exceeds 15%, the actual cost will be deducted.

2	25CI400A/W • 25HI400A • 50CI400A/W • 50HI400A

Welcome to Follett

Follett equipment enjoys a well-deserved reputation for excellent performance, long-term reliability and outstanding after-the-sale support. To ensure that this equipment delivers that same degree of service, we ask that you take a moment to review the installation portion of this manual before beginning to install the unit. Our installation instructions are designed to help you achieve a trouble-free installation. Should you have any questions or require technical help at any point, please call our technical service group at [phone] or [phone].

Note: To expedite assistance, all correspondence or communication MUST include the model number, serial number and complete and detailed explanation of the problem

Before you begin

After uncrating and removing all packing material, inspect the equipment for concealed shipping damage. If damage is found, notify the shipper immediately and contact Follett Corporation so that we can help in the filing of a claim, if necessary.

Check your paperwork to determine which model you have. Follett model numbers are designed to provide information about the type and capacity of Follett ice dispensing equipment. Following is an explanation of the different model numbers.

IMPORTANT

•Only qualified technicians should attempt to service or maintain this ice and water dispenser

•No service or maintenance should be undertaken until the technician has thoroughly read this service manual

Contact Information

FOLLETT CORPORATION, 801 Church Lane, Easton, PA 18040 USA

Phone: [phone]

Fax: [phone]

Web site: www.follettice.com

25CI400A

Condenser type, A = air-cooled, W= water-cooled

Icemaker capacity in lbs per day

Icemaker location, I = integral (behind front splash panel)

Dispenser confi guration, C = countertop, H = wall mount

Approximate storage capacity in lbs (25 or 50)

CAUTION

•Do not tilt any unit further than 30° off vertical during uncrating or installation

•Dispenser bin area contains mechanical, moving parts. Keep hands and arms clear of this area at all times. If access to this area is required, power to unit must be disconnected first.

•Ice is slippery. Be sure counters and floors around dispenser are clean, dry and free of ice.

•Do not block left side air intake or right side air exhaust

IMPORTANT NOTICE

•Follett recommends a Follett QC4-FL4S water filter system (item# 00130229) be installed in the icemaker inlet water line

•Prior to operation clean and sanitize the dispenser in accordance with instructions found in this manual

25CI400A/W • 25HI400A • 50CI400A/W • 50HI400A

3

Specifications

Countertop

Front View

Right Side View

21" (534mm)			24" (610mm)
25CI400A/W
36"
(915mm)
50CI400A/W
40"
(1016mm)	EXHAUSTAIR
INTAKEAIR		14.25"	10.5"
			(267mm)
		(362mm)
			23"
			(585mm)

Rear View

3/8" FPT
condenser
inlet (water-
cooled only)
3/8" FPT
condenser
outlet (water-
cooled only)
3/4" FPT
drain
3/8" water
inlet
	2.50"
7' (2.1m)	(64mm)
power cord
w/5-20 90°
hospital-grade	1.75" (45mm)
plug	5.18" (132mm)
	8.25" (210mm)
	10.5"
	(267mm)

Wall mount

Front View

21.5" (546mm)

25HI400A/W

36.5"

(927mm)

50HI400A/W

40.5"

(1029mm)

AIR INTAKE

AIR EXHAUST

Right Side View

Rear View

24.5" (622mm)

7' (2.1m) power cord w/5-20 90°

hospital-grade plug

14.25"

(362mm)

3/8" water inlet

3/4" FPT drain

17"

(432mm)

4	25CI400A/W • 25HI400A • 50CI400A/W • 50HI400A

Electrical

115V, 60Hz, 1 phase, 14.0 amps. Connect to dedicated 20 amp circuit, fuse or breaker.

Note: It is preferred that circuit be protected by a GFCI.

Furnished with 7 ft (2m) power cord with a 90° NEMA hospital grade 5-20 plug.

Ambient

	Maximum		Minimum
Air temp	100 F/38 C (Best performance below 80 F/27 C)		50 F/10 C
Water temp	90	F/32 C (Best performance below 70 F/21 C)	40 F/4 C
Water pressure	70	P.S.I.	10 P.S.I.

Plumbing

	Connections – 25/50CI400A/W	Rough-ins – 25/50HI400A/
Dispenser drain	All – 3/4" FNPT	Air-cooled – 3/4" FNPT
Water inlet	All – 3/8" FNPT	All – 1/2" FNPT
Condenser inlet	Water-cooled – 3/8" FNPT	N/A
Condenser outlet	Water-cooled – 3/8" FNPT	N/A

Note: Water shut-off recommended within 10 feet (3m) of dispenser. Drain to be hard-piped and insulated. Maintain at least 1/4" per foot (20mm per 1m run) of slope on horizontal runs.

CAUTION

• Do not block left side air intake or right side air exhaust

Ventilation and service clearances

	Air-cooled	Water-cooled
Required for ventilation	3" (77mm) each side	N/A
Suggested for service	12" (305mm) top,	12" (305mm) top
	6"(153mm) left side

Uncrated weight

25/50CI400A/W (countertop)	215 lbs (98kg)
25/50HI400A (wall mount)	230 lbs (105kg)

25CI400A/W • 25HI400A • 50CI400A/W • 50HI400A

5

Installation

Before you begin

Level dispenser in both directions to ensure proper operation.

Provide clearances noted in clearances table on page 5.

Countertop models provide the option of taking utilities out bottom or back of dispenser.

Wall mount model utilities exit through back of dispenser only.

Directions for each installation follow.

WARNING

• DO NOT LIFT UNIT AT THESE POINTS. Panels will not support weight of unit

• Failure to follow warning may result in equipment damage or personal injury

Installing countertop dispensers with rear exiting utilities (no legs)

Fig. 1

Countertop anchoring locations

1.56" (40mm)

4X

12.50" Ø.375" (318mm) (10mm)

hole

.50" 20" (508mm) (13mm)

1.Position dispenser in desired location.

2.Mark dispenser outline on counter and remove dispenser.

3.Drill four 7/16" holes in counter to anchor dispenser to counter (Fig. 1).

4.Apply a thick bead approximately 1/4" (7mm) diameter of NSF listed silicone sealant (Dow Corning*1 RTV-732 or equivalent) 1/4" (7mm) inside marked outline of dispenser.

5.Reposition dispenser on counter and secure to counter with four 3/8"-16NC bolts.

6.Smooth excess sealant around outside of dispenser.

* Dow Corning is a register trademark of Dow Corning Corporation in the United States and other countries

Fig. 2
Utility connections as viewed
from top for countertop back access
condenser outlet	drain	potable water
3/8" FNPT	3/4" FNPT	3/8" FNPT
condenser inlet		3/8"
3/8" FNPT
		diameter cord
drain plug

7. Make utility connections (Fig. 2).

CAUTION

•Do not connect water-cooled condenser outlet line to the dispenser drain line.

8.Turn on water supply and check for leaks.

9.Clean and sanitize dispenser and icemaker before putting into service.

10.Turn power on and allow icemaker to produce ice.

Installing countertop dispensers with bottom exiting utilities

WARNING

•A sturdy work surface capable of supporting the entire dispenser must be used

•The work surface must be large enough to accommodate height of dispenser

•Failure to provide proper support may result in personal injury

Fig. 3

5.00" (127mm)

min.

1.Position dispenser with dispense chutes facing upward on sturdy work surface (Fig. 3).

6	25CI400A/W • 25HI400A • 50CI400A/W • 50HI400A

Fig. 4		12.	Raise the dispenser upright and position in desired
			location.
		13.	Mark dispenser outline on counter and remove
			dispenser.
		Fig. 6
	4.1	Countertop cutout viewed from top

		3.13"	16.00"
	4.2	(80mm)	(407mm)
		1.56"
	4.4
		(40mm)
	4.3	12.50"	Cutout
		(318mm)
			connections
		14"	through
		(356mm)	bottom
				4X
				Ø.375"
				(10mm)
		.50"	20"	hole
	Fig. 5
		(13mm)	(508mm)
	5.3	14. Cut countertop utility opening and drill four 7/16"
		holes to anchor dispenser to counter (Fig. 6).
		15. Apply a thick bead approximately 1/4" (7mm)
		diameter of NSF listed silicone sealant (Dow
	5.4	Corning* RTV-732 or equivalent) 1/4" (7mm) inside
		marked outline of dispenser.
	5.2	16. Reposition dispenser on counter and secure to
		counter with four 3/8"-16NC bolts.
	5.1	17. Smooth excess sealant around outside of dispenser.
		18. Make utility connections through countertop cutout.
			CAUTION
		• Do not connect water-cooled condenser outlet line to
		the dispenser drain line.
	2. Disconnect the internal water line from the potable	19. Turn on water supply and check for leaks.
		20. Clean and sanitize dispenser and ice machine
	water connection fitting.
		before putting into service.
	3. Remove fitting from the back wall of the dispenser
		21. Turn power on and allow icemaker to produce ice.
	(Fig. 4.1).

4.Relocate fitting to internal bulkhead and reconnect (Fig. 5.1).

6.Remove power cord strain relief (Fig. 4.2).

7.Relocate the cord and strain relief to the internal bulkhead and reconnect (Fig. 5.2).

8.Water-cooled only. Disconnect internal condenser water inlet and outlet fittings (Fig. 4.3).

9.Water-cooled only. Relocate water inlet and outlet fittings and reconnect (Fig. 5.3). Note: The water inlet is connected to the condenser; the outlet line is connected to the water regulating valve.

10.Remove the drain plug from the internal drain line connection point (Fig. 5.4).

11.Relocate to back of dispenser and reconnect (Fig. 4.4).

25CI400A/W • 25HI400A • 50CI400A/W • 50HI400A

7

Installing wall mount dispensers

Fig. 9

	WARNING
• Wall mount dispensers are intended to be mounted above a
sink, eliminating the need for a drain pan.					9.3
• Before beginning installation verify that the sink size and
location meet the requirements shown in Fig. 7.
• If requirements are not met, a drain pan must be used to
prevent ice and water from falling on counter or floor.
• FAILURE TO TAKE THESE PRECAUTIONS COULD RESULT IN
SLIPS AND FALLS ON WET FLOORS					9.1
Fig. 7
Minimum sink requirements (without drain pan)
Front View	Front View		Side View
Sink centered	Sink centered		24.5"
below chutes	below dispenser
			(623mm)
	25HI
	54.5"
	(1385mm)
	50HI
	58.5"				9.2
	(1486mm)
		14.25"
		(362mm)		9.4
21.5"	21.5"	18"	17"
(547mm)	(547mm)		(432mm)
		(458mm)
14.25"	23"		23"
(362mm) min.	(585mm) min.		(585mm) min.
				1. Using Fig. 8 as a guide, locate wall bracket
					mounting position relative to wall studs.
Fig. 8				2. Install the supplied wall bracket with six 3/8"
					diameter fasteners (Fig. 9.1).
Wall bracket location guide
					Note: Three holes are available at each fastening
	Top view
					site to allow capture of studs or supports within the
					wall.
1"			Wall stud	2.	Locate and cut utility hole in wall using Fig. 8
(26mm)					dimensions (9.2).
Wall stud	Front view		Wall stud	3.	Rough in utilities. Wall mount bracket dimensions
					(Fig. 8) can be used as a template.
					Water: 1/2" FNPT
			25HI400A		Drain: 3/4" FNPT
	0.438" (11mm)			4.	Lift dispenser onto wall bracket positioning unit so
(anchor			13" (330mm)
	clearance
points)			50HI400A		that hook on back of dispenser is captured by wall
			15" (381mm)		bracket support angle (Fig. 9.3).
	16.00"	.75"		5.	Install two 1/4" X 20 screws through bottom of wall
	(406 mm)	(20mm)			bracket into bottom of dispenser to secure dispenser
3.4"	7"				to wall bracket (Fig. 9.4).
				6.	Install supplied 1/2" MPT X 3/8" push-in adapter
(87mm)	(178mm)		25HI400A
					onto 1/2" FNPT water supply.
1"			19" (483mm)
			50HI400A
(26mm)
2.44"			21" (483mm)
(62mm)
3.50"	Utility		6"
		(153mm)
89mm)	cut-out
	4.12"
	(105mm)
8					25CI400A/W • 25HI400A • 50CI400A/W • 50HI400A

Fig. 10

Dispenser bottom view

10.3

10.1

10.2

7.Connect supplied 3/8" water line between water supply and water inlet fitting (Fig. 10.1).

8.Using supplied 3/4" drain tubing and barbed fittings, connect 3/4" barbed drain elbow fitting on dispenser to 3/4" FNPT drain (Fig. 10.2).

9.Route power cord through utility access hole to power supply (Fig. 10.3).

10.Turn on water supply and check for leaks.

Fig. 11

11. Install bottom panel (Fig. 11).

25CI400A/W • 25HI400A • 50CI400A/W • 50HI400A

9

Icemaker cleaning & sanitizing

Periodic cleaning of Follett’s icemaker system is required to ensure peak performance and delivery of clean, sanitary ice. The following cleaning procedures should be performed at least as frequently as recommended, and more often if environmental conditions dictate.

WARNING

•To reduce risk of electrical shock disconnect power before servicing

•Wear rubber gloves and safety goggles (and/ or face shield) when handling ice machine cleaner or sanitizer mixtures

CAUTION

•Use only Follett approved cleaners (see procedure below)

•It is a violation of Federal law to use these solutions in a manner inconsistent with their labeling

•Read and understand all packaging instructions before use

•Do not use solvents, abrasive cleaners, metal scrapers or sharp objects to clean any part of the dispenser

Quarterly air filter cleaning

1.Remove screw at top of louvered panel on left side of unit.

2.Slide panel toward back of dispenser and lift.

3.Remove the air filter located under the louver.

4.Clean with soap and water.

5.Rinse, and replace when completely dry.

Semi-annual icemaker cleaning & sanitizing

Note: If icemaker and dispenser are cleaned and sanitized at the same time, icemaker should be cleaned and sanitized first.

Cleaning solution

Solution A: Ice machine cleaner: Prepare one gallon (3.8L) of Follett SafeCLEAN™ Ice Machine cleaner (one 7 oz packet) or equivalent. Solution temperature must be at least 120 F (49 C).

Warning: Most ice machine cleaners contain citric or phosphoric acid that can cause skin irritation. Read caution label on product and follow instructions carefully.

Sanitizing solution

Solution B: Prepare sanitizing solution (50 ppm of available chlorine content) of Ecolab Mikro-chlor Cleaner or equal chlorinated detergent. Solution temperature must be 75 F – 125 F (24 C – 52 C).

Note: Before cleaning SensorSAFE units, deactivate dispenser by depressing and releasing clean switch located on left side of unit under top front cover. When cleaning is complete, reactivate by depressing and releasing clean switch a second time. Dispenser will automatically reactivate after two minutes.

1.Remove the upper front cover.

2.Remove splash panel and lower drain pan protector.

3.Turn compressor switch on electrical box of icemaker to OFF position.

4.Remove water reservoir cover and close water supply valve.

5.Drain water from reservoir by releasing evaporator drain line from float reservoir bracket and removing plug from drain line.

6.Following manufacturer’s instructions, prepare one gallon (3.8L) cleaning solution A or equivalent. Solution temperature must be at least 120 F (49 C).

WARNING: Most ice machine cleaners contain citric or phosphoric acid that can cause skin irritation. Read caution label on product and follow instructions carefully.

7.Plug drain hose, replace drain line in reservoir bracket and pour part of cleaning solution into reservoir, filling it almost to overflowing.

8.Remove stainless steel compression nozzle and drain lines and submerge in a cup of cleaning solution while cleaning rest of system. CAUTION: To avoid potential pitting, do not soak parts in SafeCLEAN for more than 45 minutes.

9.Restore power to icemaker (gearmotor will run; compressor and fan will not).

10.After 15 minutes, turn power OFF;

drain solution from reservoir and evaporator.

11.Fill reservoir almost to overflowing with clean,

120 F (49 C) water, and drain. Repeat three times.

12.Following manufacturer’s instructions, prepare 1 gallon (3.8L) sanitizing solution B. Solution temperature must be at least 120 F (49 C).

13.Rinse compression nozzle in clean water and submerge in a cup of sanitizing solution while following steps 14-19.

14.Connect ice transport tube directly onto evaporator outlet port without compression nozzle.

Note: If bin will not be cleaned at this time, place a large pan in bin storage area to catch ice or connect a separate ice transport tube to evaporator and divert ice into separate container.

15.Fill reservoir almost to overflowing with sanitizing solution.

16.Restore power to icemaker (gearmotor will run; compressor and fan will not).

17.After 10 minutes, turn compressor switch to ON position.

18.As unit starts to make ice, continue to pour sanitizing solution into reservoir, maintaining level just below reservoir overflow.

19.Continue to make ice with sanitizing solution for 20 minutes.

10	25CI400A/W • 25HI400A • 50CI400A/W • 50HI400A

20.Turn power to icemaker OFF.

21.Disconnect transport tube from evaporator outlet port. Rinse compression nozzle in clean water and reinstall on evaporator outlet. Reconnect transport tube to compression nozzle.

22.Drain any remaining sanitizing solution from evaporator.

23.Fill reservoir almost to overflowing with clean,

120 F (49 C) water, and drain. Repeat three times.

24.Open water supply valve and replace reservoir cover. Restore power to icemaker and ensure compressor switch is in ON position. Make ice for at least 15 minutes to flush any remaining solution from system. Discard this and all ice made during sanitizing.

25.Inspect evaporator drain pan and drain line and remove any accumulated scale build up.

26.Replace any panels removed prior to cleaning.

Start-up following cleaning

1.Clean and sanitize ice storage area of dispenser in accordance with instructions before making ice.

2.Turn icemaker on and begin to make ice. Icemaker should start immediately with power and bin signal supplied.

3.After approximately 30 minutes, test dispenser for proper dispensing.

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11

Dispenser cleaning & sanitizing

Periodic cleaning of Follett’s ice and water dispenser system is required to ensure peak performance and delivery of clean, sanitary ice. The following cleaning procedures should be performed at least as frequently as recommended, and more often if environmental conditions dictate.

WARNING

•To reduce risk of electrical shock disconnect power before servicing

•Wear rubber gloves and safety goggles (and/ or face shield) when handling ice machine cleaner or sanitizer mixtures

CAUTION

•Use only Follett approved cleaners (see procedure below).

•It is a violation of Federal law to use these solutions in a manner inconsistent with their labeling

•Read and understand all packaging instructions before use

•Do not use solvents, abrasive cleaners, metal scrapers or sharp objects to clean any part of the dispenser

Cleaning solution

Solution A: Prepare cleaning solution (200 ppm of available chlorine content) of Ecolab Mikro-chlor Cleaner or equal chlorinated detergent. Solution temperature must be 75 F – 125 F (24 C – 52 C).

Sanitizing solution

Solution B: Prepare sanitizing solution (50 ppm of available chlorine content) of Ecolab Mikro-chlor Cleaner or equal chlorinated detergent. Solution temperature must be 75 F – 125 F (24 C – 52 C).

Note: Before cleaning SensorSAFE units, deactivate dispenser by depressing and releasing clean switch located on left side of unit under top front cover. When cleaning is complete, reactivate by depressing and releasing clean switch a second time. Dispenser will automatically reactivate after two minutes.

Daily cleaning

1.Remove all debris from drain pan.

2.Slowly pour 1 gallon (3.8L) hot water into drain pan to keep drain lines clear.

Weekly cleaning

1.Wash drain pan and grille with cleaning solution A. Rinse thoroughly with clean water.

2.Slowly pour solution of one cup (8oz/237ml) household bleach mixed with one gallon (3.8L) hot water into drain pan to help prevent algae growth in drain lines.

Cleaning SensorSAFE lens

1Deactivate dispenser by depressing and releasing clean switch located on left side of unit under top front cover.

2.Clean lens using soft cloth and mild, non-abrasive cleaner.

3.Reactivate by dispenser depressing and releasing clean switch a second time. Dispenser will automatically reactivate after two minutes.

Semi-annual cleaning and sanitizing of dispenser hopper

Note: If icemaker and dispenser are cleaned and sanitized at the same time, icemaker should be cleaned and sanitized first.

1.Remove ice from dispenser. Disconnect power.

2.Working inside storage area, remove center thumbscrew from dispense wheel, tilt wheel up toward back to clear baffle and disengage wheel from motor shaft.

3.Remove front cover, chute cover and clear plastic chute.

4.Wipe lid, wheel, baffle and clear plastic chute with a clean damp cloth wrung out in cleaning solution A.

5.Rinse all above items with damp cloth wrung out in clean water.

6.Wipe all bin surfaces (including the area under dispense wheel) with a damp cloth wrung out in cleaning solution A.

7.Rinse all bin surfaces thoroughly with damp cloth wrung out in clean water.

Caution: Do not rinse by pouring water into the storage bin. Damage to the dispense motor can result.

8.Sanitize lid, wheel, baffle, clear plastic chute and all bin surfaces by wiping with a damp cloth wrung out in sanitizing solution B. DO NOT RINSE.

9.Reinstall dispense wheel and other components.

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Service

Icemaker operation

Follett’s icemaker consists of four distinct functional systems:

•Refrigeration system

•Water system

•Harvesting system

•Electrical control system

These four systems work together to accomplish the production and harvesting of ice. A problem in any one of these systems will result in improper operation of the entire ice production cycle. When troubleshooting the icemaker, it is important to analyze the entire system operation to determine which system is not functioning properly, then pinpoint the component within that system that is malfunctioning. Determine what corrective action must be taken before making any adjustments or replacing any components.

The icemaking process

The Follett icemaker uses a stainless steel jacketed evaporator and operates on a continuous freezing cycle. Water is supplied to the evaporator from the water reservoir where the water level is controlled by a float valve. This valve also shuts off the water supply when the icemaker is not running.

When the icemaker is running, a layer of ice forms on the interior surface of the evaporator. This ice is continuously removed by a slowly rotating (12 RPM) auger.

The auger carries the ice upward into the cavity formed by the top bearing housing and the compression loop, where it is compressed to remove excess water.

When the ice reaches the desired hardness it rotates within the cavity and is forced through a discharge port and compression nozzle and into the ice transport tube. The discharge tube and compression nozzle are slightly restricted to further compress the ice and produce the desired hardness. As the formation of ice continues, ice in the transport tube is pushed through the tube to the storage compartment in the ice dispenser.

A solid state control board, located in the electrical box of the icemaker, controls the normal operation of the icemaker and monitors gearmotor torque. This control board will shut down the icemaker should an over-torque condition occur. It is very important that

you familiarize yourself with the operational sequences detailed in this manual before attempting to service the icemaker.

Ice harvest system diagram

water inlet

discharge port

ice transport tube

compression nozzle

auger

25CI400A/W • 25HI400A • 50CI400A/W • 50HI400A	13

Disassembly and replacement instructions

Dispense wheel removal and installation

1.Remove all ice from storage area of dispenser.

2.Remove center thumb nut from dispense wheel.

3.Remove thumb nuts holding baffle inside bin and remove baffle.

4.Tilt rear of wheel up and lift off motor drive shaft.

5.After reinstalling wheel, secure baffle loosely with thumb nuts, but do not tighten.

Fig. 12

baffle

dispenser

front 1/16" (2mm) spacer

side view wheel section

6.Place a 1/16" (2mm) spacer against wheel and allow baffle to drop until it touches spacer (Fig. 12).

7.Tighten thumb nuts and remove spacer.

Drive bar removal

1.Remove dispense wheel from dispenser (see above).

2.Pull drive bar out of its channel in bottom of wheel.

Wheel motor assembly removal

1.Disconnect power.

2.Remove top cover and dispense wheel.

3.Slide icemaker out of dispenser as described on page 16, icemaker removal. Icemaker does not need to be removed completely if there is sufficient clearance to access the dispenser motor through the right louvered panel.

4.Disconnect wires on motor.

5.Remove four bolts (7/16" socket) holding motor assembly to bottom of dispenser.

6.Remove motor assembly.

Ice transport tube replacement

CAUTION

•Tubing must be supplied by Follett Corporation

1.Disconnect power. Remove top and partially slide icemaker out of dispenser as described on page 16.

2.Disconnect end of tube from icemaker.

3.Disconnect existing ice tube from engaging pin on transport tube bracket in ice storage bin and pull tube up through dispenser chase.

Fig. 13

ice level control stat

engaging pin

capillary tube

1"

ice tube

(26mm)

ice tube mounting bracket

3/16" (5mm) ice tube hole

4.Run the new ice transport tube down through chase making sure that the end with the 3/16" (5mm) hole is in the bin (Fig. 13).

Fig. 14

.3/16" (5mm) dia. hole

Section A – A

1"

(26mm)

A	A

5.Push the 3/16" (5mm) hole near end of tube into pin on ice tube bracket (Fig. 14).

6.Reinstall insulation

Fig. 15

7.Heat end of transport tube in cup of 160 F (71 C) hot water to soften (Fig. 15).

8.Slip supplied hose clamp onto tube and push tube onto compression nozzle on exit port of

evaporator. Do not twist tubing when securing to evaporator.

9.Secure tube on port with hose clamp, being sure that clamp is positioned on evaporator side of nozzle flange.

14	25CI400A/W • 25HI400A • 50CI400A/W • 50HI400A

Icemaker removal

! WARNING

To reduce risk of shock disconnect power before servicing.

Fig. 16– All models

Fig. 18 – All models

18.1

18.2

3.Lower drain pan protector (Fig. 18.1). Remove and discard shipping screw (Fig. 18.2).

Fig. 19 – All models

19.4

19.3

1. Remove front cover (Fig. 16).

Fig. 17 – All models

19.1

19.2

4.	Close main water shut off valve (Fig. 19.1).
5.	Disconnect water line to float valve (Fig. 19.2).
6.	Disconnect water line to solenoid (Fig. 19.3).
7.	Remove screws securing bottom of icemaker
2. Remove splash panel (Fig. 17).	electrical box (Fig. 19.4).
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