Scotsman DC33 Installation Manual

INTRODUCTION
DC33
The Scotsman DC33 is a restaurant type ice machine designed for home use. It produces the same high quality ice as large Scotsman commercial ice cube machines, and stores that ice in a heavily insulated storage bin.
This service manual is intended as a resource for people installing, using, and servicing the DC33. Because it contains information on safety and maintenance, Scotsman strongly recommends that this manual be kept where it is readily available.
Table of Contents
Page
Installation:
Plumbing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Add On Kits:
Door Kit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Reverse Door Swing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Initial Start Up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Component Location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Maintenance & Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Winterizing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Cleaning Ice Making System . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Adjust Cube Size . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Adjust Bin Ice Level . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Adjust Timer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Service Diagnosis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Repair:
Curtain . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Inlet Water Valve . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Timer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Cube Size Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Bin Thermostat . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Water Pump . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Parts lists and wiring diagrams are located in the center of the manual, printed on yellow paper.
July 1994
Page 1
This manual was printed on
recycled paper.
DC33
TECHNICAL INFORMATION
Scotsman Ice Systems are designed and manufactured with the highest regard for safety and performance. They meet or exceed the standards of U.L., and C.S.A. Scotsman assumes no liability or responsibility of any kind for products manufactured by Scotsman that have been altered in any way, including the use of any parts and/or other components not specifically approved by Scotsman.
Scotsman reserves the right to make design changes and/or improvements at any time. Specifications and designs are subject to change without notice.
Model Number
DC33A-1W 115/60/1 15 amp DC33PA-1W 115/60/1 15 amp
Basic Electrical
Maximum Fuse Size
CompressorHPDrain
Pump?
1
8
1
8
No Yes
Add On Kits: Stainless Steel Door Panel Kit is SS33
Warm Air Out
Overhead View of DC33
and RF33 Side By Side
Cool Air In
Serial Number
Tag Location
Drain Pump Kit to convert gravity drain to pump drain is part number 12-2460-21
Refrigerant Charge is = 5 ounces of R12.
DC33 Cabinet Views
July 1994
Page 2
INSTALLATION
DC33
To properly make and store ice, the DC33 requires access to air, potable water, 115 volt electricity and a drain. The machine must be installed indoors, in a controlled environment.
Air: The ice machine uses a fan to take in room air at the front of the machine through the right side of the kick plate. It discharges warm air out the left side of the kick plate. Anything placed in front of the kick plate will restrict air flow and cause a decrease in performance and efficiency. The minimum air temperature the machine will operate in is 50
Water Supply: The ice machine requires a continuous supply of potable water at no less than 20 p.s.i.g. of flowing pressure. Static water pressure should not exceed 80 p.s.i.g. The minimum water temperature the machine will operate in is 40
0
F., and the maximum is 1000 F.
0
F., and the maximum is 1000 F.
Water Quality:
There is no such thing as “pure” water; all water, including potable water supplied by municipalities, contains some “impurities”. Water absorbs impurities from the air as rain and/or as it flows through the ground. Some of the impurities are solid particles, these are known as suspended solids, and a fine particle filter will remove them. Other impurities are chemically bonded to the water molecules, and cannot be filtered out, these are called dissolved solids.
Ice made by the DC33 will have a lower mineral content than the water it was made from
Purer water will freeze first in the ice making molds. The reason for this is that anything dissolved in water lowers the water’s freezing temperature.
This concentrates most of the impurities in the ice machine water reservoir where they may form hard deposits known as scale. The DC33 dilutes the concentration of minerals by over-filling the reservoir during the harvest cycle (with the excess water flowing down the drain). About 3 quarts of water flow into the unit each cycle. About 1 quart of that rinses the reservoir and goes down the drain.
.
To keep the machine operating properly, these impurities or minerals will have to be regularly dissolved by an acid cleaning, using Scotsman Ice Machine Cleaner. Directions for this may be found in the section under cleaning.
In general, it is always a good idea to filter the water. A water filter, if it is of the proper type, can remove taste and odors as well as particles. Some methods of water treatment for dissolved solids include reverse osmosis, and polyphosphate feeders. A reverse osmosis system should include post treatment to satisfy the R.O. water’s “aggressiveness”.
Deionized water is not recommended. Because water softeners exchange one mineral
for another, Scotsman does not recommend their use for ice machines. Where water is very hard, softened water may result in white, mushy cubes that stick together.
Scotsman suggests, that if in doubt about the water, that a local point of use water specialist be contacted for recommendations on water treatment.
Electricity: The machine is supplied with a cord, and may be plugged into a wall outlet. The ice machine should be the only device using that circuit.
The fuse (or circuit breaker) size should be 15 amps.
Drain: There are two DC33 models: The DC33A-1W is a gravity drain model that
requires a drain tube that’s pitched down from the outlet at the back of the cabinet to the connection to the sanitary sewer.
The DC33PA-1W has a built in drain pump that will pump water up to a drain point, such as a nearby sink.
Some impurities will inevitably remain, and will stick to the parts in the machine, and will cause malformed ice cubes. Eventually, built up mineral
scale can shorten machine life.
July 1994
Page 3
Good Draining
DC33
TO INSTALL: Plumbing
The water supply and drain should be roughed in and ready at the point of installation. A wall outlet directly behind the ice machine will make undercounter installation easier. All electrical, water and drain connections must conform to local codes.
Installation Cautions: Although the DC33 has been designed to be serviced in place, in some cases it may be necessary to pull the unit out for service. For that reason do not restrict access to the cabinet at the front - top and bottom.
Install Unit
Flush With Floor
Installations on a slab: Use a pump (DC33PA-1A) model and pump the water to the point of drainage. Pump models will pump 1 story high.
Installations over a crawl space or basement:
Either gravity drain or pump model units may be used, if there is not enough room behind the machine for a drain/waste receptacle, the drain will have to be below the floor.
ALL PLUMBING MUST MEET LOCAL CODES
Shims
If a floor is to be installed after the ice machine, shims the thickness of the floor should be installed under the DC33 to keep the machine level with the floor. Also, allow 1/8" clearance on each side of the cabinet.
From Ice Machine
Normal Drain Line, Pitched
Down From Ice Machine
With Trap, Causes Poor Draining
With Trap And Vent,
Draining Is Normal
To Drain
Good Draining
Poor Draining
EXAMPLES OF GRAVITY DRAIN TUBE INSTALLATIONS
July 1994
Page 4
TO INSTALL: Plumbing
DC33
Free Standing Cabinet, Gravity Drain Model:
All horizontal runs of drain lines must have a 1/4" per foot fall. An air gap will likely be required between the ice machine drain tube and the drain/waste receptacle. A stand pipe with a trap below it would be acceptable for the drain/waste receptacle. A floor drain is also acceptable.
FOLLOW ALL LOCAL PLUMBING CODES
Schematic Side
View of Drain
System, Use Began
June 1994
Reservoir
5. Route the drain tube from the back of the machine to the front and connect to the bin drain tube. Secure with hose clamps.
On units built after serial number 735675-12Z ­June 1994: When replacing an exisiting gravity drain unit where a
the hose must be replaced by one which is a
5
⁄8" drain line (hose) was used,
1
⁄2"
I.D. Failure to do this may result in a loose connection and water leak.
Be certain that the
1
⁄2" I.D. drain hose is pushed up
well past the barbs on the drain fitting. If needed to ease installation, soak the drain hose in hot water just before connecting to the fitting.
6. Route a drain line from the ice machine to the drain/waste receptacle. Note: if using a long horizontal run (more than 5’) the drain should be vented at back of cabinet.
7. Turn on the water supply and check for leaks.
8. Replace the kick plate.
9. Level the unit using the leg levelers.
Gravity Drain:
Connect
Drain Hose Here
1
⁄2" I.D.
Poor draining will cause a high rate of ice melting in the bin.
1. Remove the kick plate.
2. Route the water supply, which should be a 1/4" O.D. copper tube through the back of the cabinet to the front.
3. Install a flare nut and flare the end of the tube.
4. Flush the water line and fasten the flare nut to the male flare on the inlet water valve.
Drain Detail Up To
735675-12Z
(June 1994)
Internal Reservoir Drain Hose
Drain hose was behind the bin
prior to serial number 735675-12Z.
Water Filter
(Recommended)
Shut Off Valve
Floor Drain
Water Inlet
Connection Detail
INSTALLATION OF WATER AND DRAIN
July 1994
Page 5
DC33
TO INSTALL: Plumbing
Free Standing Cabinet, Pump Model:
1. Remove the kickplate and control box cover.
2. Route the water supply, which should be a 1/4" O.D. copper tube through the back of the cabinet to the front.
3. Install a flare nut and flare the end of the tube.
4. Flush the water line and fasten the flare nut to the male flare on the inlet water valve.
5. Locate the coil of plastic tubing shipped in the storage bin.
6. Connect the coiled tubing to the discharge port of the drain pump.
7. Route the discharge line from the drain pump to the drain point connection. Do not connect to a drain/waste line below a trap. Connect the discharge line to the drain, per local codes. An air gap will likely be required between the ice machine drain tube and the drain/waste receptacle.
8. Turn on the water and plug in the ice machine. Pour in a couple quarts of water, the drain pump should start. Check for water leaks.
9. Replace the kickplate and control box cover.
10. Level the unit using the leg levelers.
ALL PLUMBING MUST MEET LOCAL CODES
THE DC33 WILL FIT IN A SPACE
1
15
⁄4" WIDE X 333⁄4" HIGH.
THE DEPTH OF THE CABINET IS 22" TO
THE FRONT EDGE OF THE HANDLE.
Air Gap Device
(Where Required)
Drain
Connection
Water Shut
Off Valve
Water Filter
(Recommended)
WATER AND DRAIN
INSTALLATION
Drain Tube
From Back Of
Machine
July 1994
Page 6
Water Inlet Connection
TO INSTALL: Plumbing
INSTALLATION OF WATER
AND DRAIN
Water Inlet Connection
Detail
DC33
Built In, Gravity Drain Model:
The drain and inlet water tubes must be plumbed before connecting to the ice machine. All horizontal runs of drain lines must have a 1/4" per foot fall. An air gap will likely be required between the ice machine drain tube and the drain/waste receptacle. A stand pipe with a trap below it would be acceptable for the drain/waste receptacle.
Note: Poor draining will cause a high rate of ice melting in the bin.
Schematic Side View of Drain System, Use
Began June 1994.
Reservoir
7. Cut off water inlet line at required length.
8. Flush water line. Place flare nut on inlet water line and flare the end of the copper tube.
9. Attach flare nut to the male flare on the inlet water valve.
10. Cut off the drain tube to the required length.
11. Connect the drain tube to the drain fitting at the front of the cabinet. Use hose clamps to secure tubes to fittings.
On units built after serialn number 735675-12Z ­June 1994: When replacing an exisiting gravity drain unit where a
the hose must be replaced by one which is a
5
⁄8" drain line (hose) was used,
1
⁄2"
I.D. Failure to do this may result in a loose connection and water leak.
Be certain that the
1
⁄2" I.D. drain hose is pushed up
well past the barbs on the drain fitting. If needed to ease installation, soak the drain hose in hot water just before connecting to the fitting.
12. Turn on the water supply and check for leaks.
Gravity Drain:
Connect
Drain Hose Here
1
⁄2" I.D.
1. Place ice machine in front of installed location. Adjust leg levelers to approximately correct position.
2. Remove kickplate.
3. Route water inlet line, which should be a 1/4" O.D. copper tube, from wall through ice machine to the front.
4. Route drain line from wall position through ice machine to the front. Note: if using a long horizontal run (more than 5’) the drain should be vented at back of cabinet.
13. Replace the kickplate.
ALL PLUMBING MUST MEET LOCAL CODES
Water Filter
(Recommended)
Shut Off Valve
5. If electrical outlet for ice machine is behind the cabinet, plug in the ice machine now.
6. Push ice machine into installed position.
Drain Detail Up
To June 1994
Production
Drain Connection
July 1994
Page 7
DC33
TO INSTALL: Plumbing
Built In Pump Model:
1. Place ice machine in front of installed location. Adjust leg levelers to approximately correct position.
2. Remove kickplate and control box cover.
3. Route water inlet line from wall through ice machine to the front.
4. Locate coil of plastic tubing shipped in ice storage bin.
5. Connect tubing to discharge port of drain pump and route drain line from back of cabinet to drain connection point.
Note: Usually an air gap is required by local codes between the ice machine drain tube and the drain receptacle.
6. If electrical outlet for ice machine is behind the cabinet, plug in the ice machine now.
7. Push ice machine into installed position.
8. Cut off water inlet line at required length.
9. Flush water line. Place flare nut on inlet water line and flare the end of the copper tube.
10. Attach flare nut to the male flare on the inlet water valve.
11. Turn on the water supply, and make sure that the ice machine is plugged in and the power is on.
12. Pour a couple of quarts of water into the storage bin, the drain pump should start and pump water out. Check for leaks.
13. Replace kickplate and control box cover.
14. Level the cabinet left to right.
ALL PLUMBING MUST MEET LOCAL CODES
THE DC33 WILL FIT IN A SPACE
1
15
⁄4" WIDE X 333⁄4" HIGH.
THE DEPTH OF THE CABINET IS 22" TO
THE FRONT EDGE OF THE HANDLE.
Drain
Connection
Water Shut Off
Valve
Water Filter
(Recommended)
Air Gap Device
(Where Required)
WATER AND DRAIN
INSTALLATION
Drain Tube From Back Of Machine
July 1994
Page 8
Water Inlet Connection
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