Delfield 18648PTBM, 18660PTBM, 18672PTBM, 18691PTBM, 18699PTBM Service Manual

18600 Series and CTP-NB

Service and Installation Manual

Please read this manual completely before attempting to install or operate this equipment! Notify carrier of damage! Inspect all components immediately. See page 2.

18600PTL		18600PTBM	18600BUCM
Pizza Tables with Rail		Pizza Tables with Raised Rail	Work Tables

18600PDL	18600BSTM	CTP-NB
Dual LiquiTec® Rail Prep Table	Work Table with Backsplash	Countertop Condiment Rail

CAUTION

IMPORTANT				INFORMATION
						USE
	READ		BEFORE
					INSTRUCTIONS!
	SAVE	THESE
PLEASE

July 2010

18600 and CTP-NB Series Service and Installation Manual

Contents
Receiving & Inspecting Equipment.......................................................	2
Specifications.........................................................................................	3
Installation ............................................................................................	4
Care And Cleaning..............................................................................	4-5
Operation
18600PTBM & PTL Series.................................................................	6
18600BUCM & BSTM Series.............................................................	6
18600PDL Series...............................................................................	7
CTP-NB Series....................................................................................	7
Refg. Charges & Pressure Control Settings..........................................	8
Wiring Diagram
18600PTBM & PTL Series.................................................................	9
18600BUCM & BSTM Series...........................................................	10
18600PDL........................................................................................	10
CTP-NB Series..................................................................................	11
Refrigeration System
18600PTBM & PTL Series...............................................................	12
18600BUCM & BSTM Series...........................................................	12
Parts Replacement List...................................................................	13-22
Standard Labor Guidelines..................................................................	23
Standard Warranties.......................................................................	24-26
Notes....................................................................................................	27

Serial Number Information

The serial number on 18600 Series units is located on the electrical specifications tag affixed inside the compressor section next to the pressure control.

The serial number on CTP-NB Series units is located on the front of the unit.

Always have the serial number of your unit available when calling for parts or service.

Warranty may be deemed invalid if other than authorized OEM (original equipment manufacture) replacement parts are used in Delfield equipment.

©2010 The Delfield Company. All rights reserved. Reproduction without written permission is prohibited. “Delfield” is a registered trademark of The Delfield Company.

Receiving And Inspecting The Equipment

Even though most equipment is shipped crated, care should be taken during unloading so the equipment is not damaged while being moved into the building.

1.Visually inspect the exterior of the package and skid or container. Any damage should be noted and reported to the delivering carrier immediately.

2.If damaged, open and inspect the contents with the carrier.

3.In the event that the exterior is not damaged, yet upon opening, there is concealed damage to the equipment notify the carrier. Notification should be made verbally as well as in written form.

4.Request an inspection by the shipping company of the damaged equipment. This should be done within 10 days from receipt of the equipment.

5.Check the lower portion of the unit to be sure legs or casters are not bent.

6.Also open the compressor compartment housing and visually inspect the refrigeration package. Be sure lines are secure and base is still intact.

7.Freight carriers can supply the necessary damage forms upon request.

8.Retain all crating material until an inspection has been made or waived.

Uncrating the Equipment

First cut and remove the banding from around the crate. Remove the front of the crate material, use of some tools will be required. If the unit is on legs remove the top of the crate and lift the unit off the skid. If the unit is on casters it can be "rolled" off the skid.

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18600 and CTP-NB Series Service and Installation Manual

Specifications

18600PTBM Pizza tables with raised rail

1/3 Pan Size

# Of

Shelf Max

Shelf Area

Storage

BTU Load

BTU Sys. Cap.

Voltz/Hertz/

NEMA

Ship Weight

Model

Capacity

# Of Doors

Shelves

Load (LBS)

FT2

Cap. FT3

Base/Rail

Base/Rail

H.P.

Phase

Amps

Plug

LBS/KG

18648PTBM

6

(1) 27”

1

124

3.95

10.23

470/441

2001/952

1/4

115/60/1

10.0

5-15P

520/236

18660PTBM

7

19” & 27”

2

70/124

6.51

15.12

694/617

2409/1208

1/3

115/60/1

12.0

5-15P

575/260

18672PTBM

9

(2) 27”

2

124

7.9

18.10

776/794

2967/1587

1/2

115/60/1

14.0

5-20P

635/288

18691PTBM

11

(2)27” & (1) 19”

3

124/70

10.29

24.48

1062/1058

3537/1865

1/2

115/60/1

14.0

5-20P

770/350

18699PTBM

12

(3) 27”

3

124

11.85

27.46

1144/1147

3537/1945

1/2

115/60/1

14.0

5-20P

805/365

186114PTBM

14

(3) 32”

3

140

14.46

33.05

1297/1323

5169/2433

3/4

115/60/1

16.0

5-20P

927/420

18600BUCM Work tables

# Of

Shelf Max

Shelf Area

Storage

BTU Load

BTU Sys. Cap.

Voltz/Hertz/

NEMA

Ship Weight

Model

# Of Doors

Shelves

Load (LBS)

FT2

Cap. FT3

Base/Rail

Base/Rail

H.P.

Phase

Amps

Plug

LBS/KG

18648BUCM

(1) 27”

1

124

3.95

10.23

475/NA

1462/NA

1/5

115/60/1

8.0

5-15P

390/177

18660BUCM

19” & 27”

2

70/124

6.51

15.12

686/NA

1462/NA

1/5

115/60/1

8.0

5-15P

435/197

18672BUCM

(2) 27”

2

124

7.90

18.10

856/NA

2261/NA

1/4

115/60/1

10.0

5-15P

495/225

18691BUCM

(2)27” & (1) 19”

3

124/70

10.29

24.48

1169/NA

2261/NA

1/4

115/60/1

10.0

5-15P

535/243

18699BUCM

(3) 27”

3

124

11.85

27.46

1220/NA

2591/NA

1/3

115/60/1

12.0

5-15P

594/269

186114BUCM

(4) 24”

4

106

14.46

37.24

1373/NA

2591/NA

1/3

115/60/1

12.0

5-15P

685/310

18600BSTM Work table with backsplash

# Of

Shelf Max

Shelf Area

Storage

BTU Load

BTU Sys. Cap.

Voltz/Hertz/

NEMA

Ship Weight

Model

# Of Doors

Shelves

Load (LBS)

FT2

Cap. FT3

Base/Rail

Base/Rail

H.P.

Phase

Amps

Plug

LBS/KG

18648BSTM

(1) 27”

1

124

3.95

10.23

475/NA

1462/NA

1/5

115/60/1

8.0

5-15P

390/177

18660BSTM

19” & 27”

2

70/124

6.51

15.12

686/NA

1462/NA

1/5

115/60/1

8.0

5-15P

435/197

18672BSTM

(2) 27”

2

124

7.90

18.10

856/NA

2261/NA

1/4

115/60/1

10.0

5-15P

495/225

18691BSTM

(2)27” & (1) 19”

3

124/70

10.29

24.48

1169/NA

2261/NA

1/4

115/60/1

10.0

5-15P

535/243

18699BSTM

(3) 27”

3

124

11.85

27.46

1220/NA

2591/NA

1/3

115/60/1

12.0

5-15P

594/269

186114BSTM

(4) 24”

4

106

14.46

37.24

1373/NA

2591/NA

1/3

115/60/1

12.0

5-15P

685/310

18600PTL Pizza table with LiquiTec® rail

1/3 Pan Size

# Of

Shelf Max

Shelf Area

Storage

BTU Load

BTU Sys. Cap.

Voltz/Hertz/

NEMA

Ship Weight

Model

Capacity

# Of Doors

Shelves

Load (LBS)

FT2

Cap. FT3

Base/Rail

Base/Rail

H.P.

Phase

Amps

Plug

LBS/KG

18648PTL

6

(1) 27”

1

124

3.95

10.23

470/441

2001/952

1/4

115/60/1

10.0

5-15P

520/236

18672PTL

9

(2) 27”

2

124

7.90

18.10

776/794

2967/1587

1/2

115/60/1

14.0

5-20P

635/288

18699PTL

12

(3) 27”

3

124

11.85

27.46

1144/1147

3537/1945

1/2

115/60/1

14.0

5-20P

805/365

18600PDL Pizza table with Dual LiquiTec® rails

1/3 Pan Size

# Of

Shelf Max

Shelf Area

Storage

BTU Load

BTU Sys. Cap.

Voltz/Hertz/

NEMA

Ship Weight

Model

Capacity

# Of Doors

Shelves

Load (LBS)

FT2

Cap. FT3

Base/Rail

Base/Rail

H.P.

Phase

Amps

Plug

LBS/KG

18648PDL

6

(1) 27”

1

124

3.95

10.23

424/1058

2001/1865

1/5,

115/60/1

10.1

5-20P

691/313

1/3

18672PDL

9

(2) 27”

2

124

7.90

18.10

703/1588

2001/3174

1/5,

115/60/1

12.7

5-20P

873/396

1/2

CTP-NB Counter top containment rail

	1/3 Pan Size				BTU System		Voltz/Hertz/		NEMA	Ship Weight
Model	Capacity		# Of Adapter Bars	BTU Load	Capacity	H.P.	Phase	Amps	Plug	LBS/KG
CTP8146-NB	4	5		305	523	1/5	115/60/1	4.0	5-15P	121/54.9
CTP8160-NB	6	7		462	653	1/5	115/60/1	4.0	5-15P	158/71.7

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18600 and CTP-NB Series Service and Installation Manual

Installation

Location

These units are intended for indoor use only. Be sure the location chosen has a floor strong enough to support the total weight of the cabinet and contents. A fully loaded 72” long model may weigh as much as 1200 pounds. Reinforce the floor as necessary to provide for maximum loading.

For the most efficient refrigeration, be sure to provide good air circulation inside and out.

Inside cabinet: Do not pack refrigerator so full that air cannot circulate.

Outside cabinet: Be sure that the unit has access to ample air. Avoid hot corners and locations near stoves and ovens.

It is recommended that the unit be installed no closer than 1” from any wall. PDL models also require 14” (36cm) clearance at the top and 6” (15cm) clearance at the bottom (casters).

Leveling

A level cabinet looks better and will perform better because the drain pan will drain properly, the doors will line up with the frames properly, and the cabinet will not be subject to undue strain.

Some models have casters for your convenience, for ease of cleaning underneath and for mobility. It is important that the unit be installed in a stable condition with the front casters locked before operating.

Plumbing

Self-contained models are standard with a condensate evaporator. If, for some reason, a unit does not have a condensate evaporator, or the evaporator fails, the unit’s drain must have an outlet to an appropriate drainage area or container.

Moisture collecting from improper drainage can create a slippery surface on the floor and a hazard to employees. It is the owner’s responsibility to provide

CAUTION a container or outlet for drainage.

Electrical connection

Refer to the amperage data on page 3, the serial tag, your local code or the National Electrical Code to be sure the unit is connected to the proper power source. A protected circuit of the correct voltage and amperage must be run for connection of the line cord, or permanent connection to the unit.

The power switch must be turned to OFF and the unit disconnected from the power source whenever performing service or maintenance functions.

Never operate the unit without the louvered panel in place!

Care & Cleaning

Door Gasket Maintenance

Door gaskets require regular cleaning to prevent mold and mildew build up and also to retain the elasticity of the gasket. Gasket cleaning can be done with the use of warm soapy water. Avoid full strength cleaning products on gaskets as this can cause them to become brittle and crack. Never use sharp tools or knives to scrape or clean the gasket. Gaskets can be easily replaced and do not require the use of tools or an authorized service person. The gaskets are “Dart” style and can be pulled out of the groove in the door and new gaskets can

be “pressed” back into place.

Drain Maintenance - Base

Each unit has a drain located inside the unit that removes the condensation from the evaporator coil and routes it to an external condensate evaporator pan. Each drain can become loose or disconnected during normal use. If you notice water accumulation on the inside of the unit be sure the drain tube is connected to the evaporator drain pan. If water is collecting underneath the unit make sure the end of the drain tube is in the condensate evaporator in the machine compartment. The leveling of the unit is important as the units are designed to drain properly when level. Be sure all drain lines are free of obstructions.

Drawer Maintenance

Drawer Assembly Cleaning

The drawer assembly is designed to be cleaned easily. Both drawer and tracks are removable without tools. The drawer tracks are dishwasher safe or can be cleaned in a sink with detergents and a soft bristle brush. Drawers and tracks should be cleaned on a weekly basis.

Remove Drawers

Pull the drawer box out until it stops. Lift up on the drawer front and pull the drawer box completely out. Using a soft bristle brush, clean the track on the bottom of the drawer box. When finished, it should be wiped clean of all food and debris.

Tracks

The drawer box assembly must be removed. Pull the drawer tracks out until they hit a stop. Locate blue safety clips towards the back of each drawer track. Blue safety clips have a tab on the top. Push the tab back until it clicks. Lift up and pull the drawer tracks all the way out of the drawer cage. The drawer tracks are dishwasher safe or can be cleaned in a sink with detergents and a soft

tab on top of bristle brush. Drawers and blue safety clip tracks should be cleaned on a weekly basis. Using

a soft bristle brush, wash the track making sure each roller is thoroughly cleaned. The drawer cage should be cleaned with a soft bristle brush, removing any food and debris gathered on the bottom ledge. Once it’s cleaned thoroughly with a soft bristle brush, wipe remaining debris clean with a soft towel.

Reassembly

Push the drawer tracks into the drawer cage. The blue safety clip must remain pushed towards the back. Lift up and slide the drawer track all the way into the drawer cage. The blue safety clip will lock in place automatically. Once all tracks are replaced, insert the drawer box. Rest the drawer box bottom track on the front track roller. Then

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Care & Cleaning, continued

push the drawer back in place SLOWLY. When the drawer box is about half way in you will hit a STOP. You must lift the front of the drawer up approximately ½” (1.3cm) to continue inward. Clean tracks as often as possible. The cleaner the tracks are the better they will operate.

Caster Maintenance

Wipe casters with a damp cloth monthly to prevent corrosion.

The power switch must be turned to OFF and the unit disconnected from the power source whenever performing service, maintenance functions or cleaning

the refrigerated area.

Refrigerators and Freezers

The interior and exterior can be cleaned using soap and warm water. If this isn’t sufficient, try ammonia and water or a nonabrasive liquid cleaner. When cleaning the exterior, always rub with the “grain” of the stainless steel to avoid marring the finish. Do not use an abrasive cleaner because it will scratch the stainless steel and can damage the

breaker strips and gaskets.

Stainless Steel Care and Cleaning

To prevent discoloration of rust on stainless steel several important steps need to be taken. First, we need to understand the properties of stainless steel. Stainless steel contains 7080% iron, which will rust. It also contains 12-30% chromium, which forms an invisible passive film over the steels surface, which acts as a shield against corrosion. As long as the protective layer is intact, the metal is still stainless. If the film is broken or contaminated, outside elements can begin to breakdown the steel and begin to form discoloration of rust. Proper cleaning of stainless steel requires soft cloths or plastic

scouring pads.

NEVER USE STEEL PADS, WIRE BRUSHES OR SCRAPERS!

Cleaning solutions need to be alkaline based or non-chloride cleaners. Any cleaner containing chlorides will damage the protective film of the stainless steel. Chlorides are also commonly found in hard water, salts, and household and industrial cleaners. If cleaners containing chlorides are used be sure to rinse repeatedly and dry thoroughly. Routine cleaning of stainless steel can be done with soap and water. Extreme stains or grease should be cleaned with a non-abrasive cleaner and plastic scrub pad. Always rub with the grain of the steel. There are stainless steel cleaners available which can restore and preserve the finish of the steels protective layer. Early signs of stainless steel breakdown are small pits and cracks. If this has begun, clean thoroughly and start to apply stainless steel cleaners in attempt

to restore the passivity of the steel.

Never use an acid based cleaning solution! Many food products have an acidic content, which can deteriorate the finish. Be sure to clean the stainless steel surfaces

of ALL food products. Common items include, tomatoes, peppers and other vegetables.

Cleaning the Condenser Coil

In order to maintain proper refrigeration performance, the condenser fins must be cleaned of dust, dirt and grease regularly. It is recommended that this be done at least every three months. If conditions are such that the condenser is totally blocked in three months, the frequency of cleaning should be increased. Clean the condenser with a vacuum cleaner or stiff brush. If extremely dirty, a

18600 and CTP-NB Series Service and Installation Manual

commercially available condenser cleaner may be required.

Failure to maintain a clean condenser coil can initially cause high temperatures and excessive run times. Continuous operation with a dirty or clogged condenser coil can result in compressor failure. Neglecting the condenser coil cleaning procedures will void any warranties associated with the compressor and cost to replace the compressor.

Never use a high-pressure water wash for this cleaning procedure as water can damage the electrical

components located near or at the condenser coil.

Doors/Hinges

Over time and with heavy use doors the hinges may become loose. If this happens tighten the screws that mount the hinge brackets to the frame of the unit. Loose or sagging doors can cause the hinges to pull out of the frame, which may damage both the doors and the hinges. In some cases this may require qualified service agents or maintenance

personnel to perform repairs.

Do not place hot pans on/against the blue ABS liner. Do not throw items into the storage area. Failure to follow these recommendations could result in damage

to the interior of the cabinet or to the blower coil. Overloading the storage area, restricting the airflow, and continuous opening and closing of the doors and drawers will hamper the units ability to maintain

operational temperature.

Refrigerated rail units

Product in the rail should be removed to the refrigerated base at the end of the day. This allows you to turn the rail off at night to save energy and to defrost the rail. It also helps maintain product quality. The standard wrapped refrigerated rail units are controlled by a lowpressure control that is set to maintain the proper rail temperature. An on/off switch is also provided for the rail and is required to be shut off at night. With a LiquiTec rail a thermostat is provided to maintain rail temperature as well as the rail on/off switch. The LiquiTec rail is required to be shut off at night as well to allow for defrosting. To ensure product quality in the rail it is recommended that product be

rotated every four hours.

If adding any item to the unit, be sure to keep in mind the location of the refrigeration lines on wrapped rail units. A refrigeration leak in a rail is extremely difficult and costly to repair. In some cases it cannot be repaired

at all.

Preventing blower coil corrosion

To help prevent corrosion of the blower coil, store all acidic items, such as pickles and tomatoes, in sealable containers. Immediately

wipe up all spills.

Units with pans should be operated with pans in place. Operating the unit without all pans in place will lower

efficiency and may damage the unit.

Continuous opening and closing of the doors will hamper the unit’s ability to maintain optimum refrigeration temperature. Top section is not intended for overnight storage. Product should be removed from pans. Pans can remain in unit while empty.

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18600 and CTP-NB Series Service and Installation Manual

Operation: 18600PTBM & PTL Series

Product should be loaded into the unit with care. Failure to heed these recommendations could result in damage to the interior of the cabinet or the blower coil.

This unit is equipped with two on/off switches located behind the louvered machine compartment panel. The unit’s compressor and all evaporator fans will begin operating when the main power switch is turned to the ON position. Temper­ture ranges for the base are 36°F to 40°F.

The switch labeled rail is for the raised rail. The rail switch is accessible through a 1.5” diameter hole in the louvered panel. Turning this switch to the ON position will activate the refrigeration for the rail. Temperature ranges for the raised rail are 33°F to 41°F.

Product located in the rail must be removed at the end of day. This allows you to turn the rail off at night to save energy and the rail will have time to defrost as needed.

A minimum of one hour of off time per day with the pans removed from the rail is required to properly defrost the rail.

The power must be turned to OFF and the unit disconnected from the power source whenever performing service or maintenance functions.

Never operate the unit without the louvered panel in place!

All R404A models have a high pressure limiting device. Under severe overloading conditions, or in the event of a condenser fan failure or a plugged or blocked condenser, this device may shut down the refrigeration system. This device will automatically reset, but determining the cause of the high pressure condition should be investigated by a qualified refrigeration technician.

Operation: 18600BUCM & BSTM Series

After turning the ON/OFF switch to ON, the units compressor will begin operating. Delfield refrigerated bases are designed to maintain an operational temperature of 36°F to 40°F.

Product should be loaded into the unit with care. Failure to heed these recommendations could result in damage to the interior of the cabinet or the blower coil.

Overloading the storage area, restricting the air flow and continuous opening and closing of the doors and drawers will hamper the units ability to maintain operational temperature.

For customer service, call [phone], [phone], Fax [phone], www.delfield.com

18600 and CTP-NB Series Service and Installation Manual

Operation: 18600PDL Series

Product should be loaded into the unit with care. Failure to heed these recommendations could result in damage to the interior of the cabinet or the blower coil.

This unit is equipped with two on/off switches located behind the louvered machine compartment panel. The unit’s compressor and all evaporator fans will begin operating when the main power switch is turned to the ON position. Temper­ture ranges for the base are 36°F to 40°F (2°C to 4°C).

The switch labeled rail is for the raised rails. The rail switch is accessible through a 1.5” (3.8cm) diameter hole in the louvered panel. Turning this switch to the ON position will activate the refrigeration for the rails. Temperature ranges for the raised rails are 33°F to 41°F (0.5°C to 5°C).

Product located in the rails must be removed at the end of day. This allows you to turn the rails off at night to save energy and the rails will have time to defrost as needed.

A minimum of one hour of off time per day with the pans removed from the rails is required to properly defrost the rails.

The power must be turned to OFF and the unit disconnected from the power source whenever performing service or maintenance functions.

Never operate the unit without the louvered panel in place!

All R404A models have a high pressure limiting device. Under severe overloading conditions, or in the event of a condenser fan failure or a plugged or blocked condenser, this device may shut down the refrigeration system. This device will automatically reset, but determining the cause of the high pressure condition should be investigated by a qualified refrigeration technician.

Operation: ctp-nb Series

The unit is equipped with one on/off switch located on the right end of the unit. The unit’s compressor will begin operating when this switch is turned to the ON position. Temper­ture ranges for the rail are 33°F to 41°F.

Product located in the rail must be removed at the end of day. This allows you to turn the rail OFF at night to save energy and the rail will have time to defrost as needed.

A minimum of one hour of off time per day with the pans removed from the rail is required to properly defrost the rail.

The power switch must be turned to OFF and the unit disconnected from the power source whenever performing service or maintenance functions. Never operate the unit without the louvered panel in place!

For customer service, call [phone], [phone], Fax [phone], www.delfield.com

18600 and CTP-NB Series Service and Installation Manual

Refrigerant Charges And Pressure Control Settings

Refrigerant Charges For 18600 Series Units:
18648-PTBM & PTL . . . .	.	16 oz. (454g)	18660-BUCM & BSTM .	.	.	.	16 oz. (454g)
18660-PTBM . . . . . . .		.24 oz. (680g)	18672-BUCM & BSTM .	.	.	.	16 oz. (454g)
18672-PTBM & PTL . . . .	.	32 oz. (907g)	18691-BUCM & BSTM .	.	.	.	16 oz. (454g)
18691-PTBM . . . . . . .		.32 oz. (907g)	18699-BUCM & BSTM .	.	.	.	24 oz. (680g)
18699-PTBM & PTL . . . .	.	32 oz. (907g)	186114-BUCM & BSTM .	.	.		.24 oz. (680g)
186114-PTBM . . . . . .	.48 oz. (1361g)		18648PDL . . . . . .	.	.		40 oz. (1134g)
18648-BUCM & BSTM . . .	.	16 oz. (454g)	18672PDL . . . . . .	.	.		56 oz. (1588g)

Refrigerant Charges For CTP-NB Series Units:
CTP8146-NB .	.	.	.	.	.	.	.	8 oz. (227g)
CTP8160-NB .	.	.	.	.	.	.	.	8 oz. (227g)
CTP8175-NB .	.	.	.	.	.	.	.16 oz. (454g)

Pressure Control Settings

The factory recommended low-pressure control settings for 18600PTBM’s are: 55psi cut-in and 30psi cut-out to maintain proper temperature for product in the rail. The interior temperature is controlled by the thermostat mounted on the evaporator coil housing.

The factory recommended low-pressure control settings for 18600PDL’s & PTL’s are: 20psi (1.38bar) cut-in and 10psi (0.70bar) cut-out to maintain proper temperature for product in the base. The rail temperature is controlled by the thermostat mounted in the machine compartment.

The factory recommended low-pressure control settings for 18600BUCM’s & BSTM’s are: 82psi cut-in and 57psi cut-out to maintain proper temperature.

Pressure Control

The temperature is controlled by an adjustable pressure control located in the machine compartment. An adjustable control has the word COLDER near the knob, with an arrow to indicate the adjustment direction. These controls are field adjustable and do not require a service agent.

In attempting to adjust the pressure control, you can do damage to your unit by accidentally adjusting the differential. Please make small incremental adjustments if a temperature adjustment is necessary, please contact the service department at Delfield [phone] or your local service agent. Delfield is not responsible for charges incurred while having the pressure control adjusted.

Thermostat Settings - PTL & PDL

The 18600PTL & 18600PDL models use a thermostat located in the mechanical section to control product temperature in the LiquiTec rails.

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18600 and CTP-NB Series Service and Installation Manual

Wiring Diagram - 18600PTBM Series

L1

N

G

ON/OFF SWITCH

		CONDENSING UNIT
	PRESSURE CONTROL	POWER CORD
		PROVIDED ON
		SELF-CONTAINED
BASE		MODELS
		EVAPORATOR FAN(S)
	T'STAT	SOLENOID VALVE(S)
RAIL	SWITCH	SOLENOID VALVE

OPTIONAL RECEPTACLE FOR OPTIONAL

FAN PACKAGE

Wiring Diagram - 18600PTL Series

L1

N

G

ON/OFF SWITCH

			CONDENSING UNIT
	PRESSURE CONTROL		POWER CORD
			PROVIDED ON
			SELF-CONTAINED
BASE			MODELS
			EVAPORATOR FAN(S)
	T'STAT		SOLENOID VALVE(S)
	3		1
RAIL	SWITCH		SOLENOID VALVE
		5
			T‘STAT

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