hot frost units - parts town · 3/11/2019 7ipl-cb-hf-0040 illustrated parts list for hot frost...

Illustrated Parts List

This manual is Copyright © 2019 Duke Manufacturing Co. All rights reserved. Reproduction without written permission is prohibited. Duke is a registered

trademark of the Duke Manufacturing Co.

Duke Manufacturing Co.2305 N. Broadway • St. Louis, MO 63102

800.735.3853 • 314.231.1130Fax: 314-231-5074www.dukemfg.com

IPL-CB-HF-0040 3/11/2019

HOT FROST UNITSMODELSHF35-2HF48-2HF50-2HF64-2HF91-2

Illustrated Parts List for Hot Frost Units

IPL-CB-HF-0040 2 3/11/2019

MODEL NUMBER CONVENTION

3/11/2019 3 IPL-CB-HF-0040


TABLE OF CONTENTS

MODEL NUMBER CONVENTION ......................................................................................................2

MODEL HF35-2 HOT FROST UNITS ............................................................................................. 4-5



MODEL HF64-2 HOT FROST UNITS ..........................................................................................10-11

MODEL HF91-2 HOT FROST UNITS ......................................................................................... 12-13

DISPLAY LIGHTS ..............................................................................................................................14

REFRIGERATION ASSEMBLY .........................................................................................................15

HOT FROST WIRING DIAGRAM – HF MODELS .............................................................................16

HOT FROST WIRING DIAGRAM – 91" HF MODELS ......................................................................17


IPL-CB-HF-0040 4 3/11/2019

MODEL HF35-2 HOT FROST UNITS(HFL = Hot Frost Lights , HOL = Hot Only Lights, FOL = Frost Only Lights)

9

19

2021

22

22

25

2627

28

29 23

24

123

45

67

8

1213

1110

8

8

17

18

16 1415

3/11/2019 5 IPL-CB-HF-0040


MODEL HF35-2 HOT FROST UNITS(HFL = Hot Frost Lights , HOL = Hot Only Lights, FOL = Frost Only Lights)

ITEM PART NO. DESCRIPTION HF35-2-HFL-HFL

HF35-2-HOL-HOL

HF35-2-FOL-FOL

1 114328K ASSEMBLY, CONTROL 35-48-50 HFL 22 114170 CONTROL PANEL CVR 36.0X25.0 18GA SS 301=22 13 114057 THREE POSITION SWITCH 14 114060 HEAT LAMP INDICATOR LIGHT (Amber) 15 114061 COMPRESSOR INDICATOR LIGHT (Green) 16 114059 HEAT LAMP, INFINITE CONTROL 17 114092 OVERLAY-HFL 18 114058 LED SWITCH 19 114329K ASSEMBLY, CONTROL 35-48-50 HOL 2

10 114172 CONTROL PANEL COVER-HOL 111 114093 OVERLAY-HOL 112 114059 HEAT LAMP, INFINITE CONTROL 113 114060 HEAT LAMP INDICATOR LIGHT (Amber) 18 114058 LED SWITCH 1

14 114330K ASSEMBLY, CONTROL 35-48-50 FOL 215 114171 CONTROL PANEL COVER FOL 116 114050 TWO POSITION SWITCH 117 114061 COMPRESSOR INDICATOR LIGHT (Green) 118 114094 OVERLAY-FOL 18 114058 LED SWITCH 1

19 114198 SNEEZEGUARD-35 4 4 4Not shown 279500 SCREW, 8-32 x 1/2" PTHMS 18-8SS 70 70 70Not shown 114052 HEAT LAMP, GRN-24, 208V 2 2Not shown 114053 HEAT LAMP, GRN-30, 208V 2 2

20114350K ASSEMBLY, ELECTRICAL ENCLOSURE, HFL-HFL 1114373K ASSEMBLY, ELECTRICAL ENCLOSURE, HOL-HOL 1114378K ASSEMBLY, ELECTRICAL ENCLOSURE, FOL-FOL 1

21 118434 AC CONNECTION RECEPTACLE 1 1 122 155680 NUT, KEPS 8-32 HEX ZP 3 3 323 120001 BLOCK, TERMINAL 4 POLE 1 1 124 555358 NUT, 6-32 HEX ZINC PLATED NYLON INSERT LOCKNUT 4 4 425 983385 LUG,GROUND ILSCO TA-2 1 126 222101 BUSHING,HEYCO 1280 STRAIN RELIEF 3 3 327 115357 CONNECTOR, 3/4"LIQUIDTIGHT 1 1 128 167568 LOCKNUT, CONDUIT 3/4" 1 1 129 279500 SCREW, 8-32 x 1/2" PTHMS, 18-8SS 2 2 2

Not shown ELC0125 HARNESS, HEAT POWER, HOT FROST 2 2Not shown ELC0126 HARNESS, TB TO LIGHT OUTLET 1 1 1Not shown ELC0127 HARNESS-SELF FROST 2 2Not shown ELC0128 HARNESS-POWER TO REFRIG. VALVE 2 2Not shown ELC0129 HARNESS-REFIG. PRESSURE SW 1 1Not shown ELC0130 HARNESS-HEAT + FROST CONTROL 2 2

Not shownELC0300 CORD, POWER 15A 1ELC0156 POWER CORD, MOLDED, NEMA L14-20P (Replaced by ELC0300 in 114378) 1 1 1

Display Lights – See page 14Refrigeration Assemblies – See page 15


IPL-CB-HF-0040 6 3/11/2019

MODEL HF48-2 HOT FROST UNITS(HFL = Hot Frost Lights, FOL = Frost Only Lights)

16

17

17

20

2122

23

2418

19

15

14

12 34

56

78

813

12

1110

9

3/11/2019 7 IPL-CB-HF-0040



ITEM PART NO. DESCRIPTION HF48-2-HFL-HFL HF48-2-FOL-FOL1 114328K ASSEMBLY, CONTROL 35-48-50 HFL 22 114170 CONTROL PANEL CVR 36.0X25.0 18GA SS 301=22 1

3 114057 THREE POSITION SWITCH 1

4 114060 HEAT LAMP INDICATOR LIGHT (Amber) 1

5 114061 COMPRESSOR INDICATOR LIGHT (Green) 1

6 114059 HEAT LAMP, INFINITE CONTROL 1

7 114092 OVERLAY-HFL 1

8 114058 LED SWITCH 1

9 114330K ASSEMBLY, CONTROL 35-48-50 FOL 210 114171 CONTROL PANEL COVER FOL 1

11 114050 TWO POSITION SWITCH 1


13 114094 OVERLAY-FOL 1


14 114202 SNEEZEGUARD-48 4 4Not shown 279500 SCREW, 8-32 x 1/2" PTHMS 18-8SS 76 76

Not shown 114054 HEAT LAMP, GRN-36, 208V 2


15114350K ASSEMBLY, ELECTRICAL ENCLOSURE, HFL-HFL 1114378K ASSEMBLY, ELECTRICAL ENCLOSURE, FOL-FOL 1

16 118434 AC CONNECTION RECEPTACLE 1 1

17 155680 NUT, KEPS 8-32 HEX ZP 3 3

18 120001 BLOCK, TERMINAL 4 POLE 1 1

19 555358 NUT, 6-32 HEX ZINC PLATED NYLON INSERT LOCKNUT 4 4

20 983385 LUG,GROUND ILSCO TA-2 1

21 222101 BUSHING,HEYCO 1280 STRAIN RELIEF 3 3

22 115357 CONNECTOR, 3/4"LIQUIDTIGHT 1 1

23 167568 LOCKNUT, CONDUIT 3/4" 1 1

24 279500 SCREW, 8-32 x 1/2" PTHMS, 18-8SS 2 2Not shown ELC0125 HARNESS, HEAT POWER, HOT FROST 2Not shown ELC0126 HARNESS, TB TO LIGHT OUTLET 1 1Not shown ELC0127 HARNESS-SELF FROST 2 2Not shown ELC0128 HARNESS-POWER TO REFRIG. VALVE 2 2Not shown ELC0129 HARNESS-REFIG. PRESSURE SW 1 1Not shown ELC0130 HARNESS-HEAT + FROST CONTROL 2

Not shownELC0300 CORD, POWER 15A 1

ELC0156 POWER CORD, MOLDED, NEMA L14-20P (Replaced by ELC0300 in 114378) 1 1



IPL-CB-HF-0040 8 3/11/2019


14

15

16

17

17

20

2122

23

2418

19

12 34

56

78

813

12

1110

9

3/11/2019 9 IPL-CB-HF-0040



ITEM PART NO. DESCRIPTION HF50-2-HFL-HFL HF50-2-FOL-FOL

1 114328K ASSEMBLY, CONTROL 35-48-50 HFL 2

2 114170 CONTROL PANEL CVR 36.0X25.0 18GA SS 301=22 1







9 114330K ASSEMBLY, CONTROL 35-48-50 FOL 2

10 114171 CONTROL PANEL COVER FOL 1





14 114199 SNEEZEGUARD-50 4 4

Not shown 279500 SCREW, 8-32 x 1/2" PTHMS 18-8SS 76 76


15114350K ASSEMBLY, ELECTRICAL ENCLOSURE, HFL-HFL 1

114378K ASSEMBLY, ELECTRICAL ENCLOSURE, FOL-FOL 1


17 155680 NUT, KEPS 8-32 HEX ZP 3 3







24 279500 SCREW, 8-32 x 1/2" PTHMS, 18-8SS 2 2

Not shown ELC0125 HARNESS, HEAT POWER, HOT FROST 2

Not shown ELC0126 HARNESS, TB TO LIGHT OUTLET 1 1

Not shown ELC0127 HARNESS-SELF FROST 2 2

Not shown ELC0128 HARNESS-POWER TO REFRIG. VALVE 2 2

Not shown ELC0129 HARNESS-REFIG. PRESSURE SW 1 1

Not shown ELC0130 HARNESS-HEAT + FROST CONTROL 2

Not shownELC0300 CORD, POWER 15A 1

ELC0156 POWER CORD, MOLDED, NEMA L14-20P (Replaced by ELC0300 in 114378) 1 1



IPL-CB-HF-0040 10 3/11/2019


15

16

17

17

20

2122

23

2418

19

14

12 34

56

78

813

12

1110

9

3/11/2019 11 IPL-CB-HF-0040



ITEM PART NO. DESCRIPTION HF64-2-HFL-HFL HF64-2-FOL-FOL1 114328K ASSEMBLY, CONTROL 35-48-50 HFL 22 114170 CONTROL PANEL CVR 36.0X25.0 18GA SS 301=22 1







9 114330K ASSEMBLY, CONTROL 35-48-50 FOL 210 114171 CONTROL PANEL COVER FOL 1





14 114200 SNEEZEGUARD-64.25 4 4Not shown 279500 SCREW, 8-32 x 1/2" PTHMS 18-8SS 78 78Not shown 114062 HEAT LAMP, 54, 208V 2Not shown 114056 HEAT LAMP, 60, 208V 2

15114424K ASSEMBLY, ELECTRICAL ENCLOSURE, 60 HFL-HFL 1114378K ASSEMBLY, ELECTRICAL ENCLOSURE, FOL-FOL 1


17 155680 NUT, KEPS 8-32 HEX ZP 3 3







24 279500 SCREW, 8-32 x 1/2" PTHMS, 18-8SS 2 2Not shown ELC0125 HARNESS, HEAT POWER, HOT FROST 2Not shown ELC0126 HARNESS, TB TO LIGHT OUTLET 1 1Not shown ELC0127 HARNESS-SELF FROST 2 2Not shown ELC0128 HARNESS-POWER TO REFRIG. VALVE 2Not shown ELC0129 HARNESS-REFIG. PRESSURE SW 1 1Not shown ELC0130 HARNESS-HEAT + FROST CONTROL 2

Not shown

ELC0300 CORD, POWER 15A 1

ELC0156 POWER CORD, MOLDED, NEMA L14-20P (Replaced by ELC0300 in 114378) 1

ELC0219 JUMPER 64, 91 – Power to Refrig. Valve 2

ELC0178 POWER CORD, MOLDED, NEMA L14-20P 1



IPL-CB-HF-0040 12 3/11/2019


17

18

18

21

2223

24

2519

20

14

15

16

12 34

56

78

813

12

1110

9

3/11/2019 13 IPL-CB-HF-0040



ITEM PART NO. DESCRIPTION HF91-2-HFL-HFL HF91-2-FOL-FOL1 114328K ASSEMBLY, CONTROL 35-48-50 HFL 22 114170 CONTROL PANEL CVR 36.0X25.0 18GA SS 301=22 13 114057 THREE POSITION SWITCH 14 114060 HEAT LAMP INDICATOR LIGHT (Amber) 15 114061 COMPRESSOR INDICATOR LIGHT (Green) 16 114059 HEAT LAMP, INFINITE CONTROL 17 114092 OVERLAY-HFL 18 114058 LED SWITCH 19 114330K ASSEMBLY, CONTROL 35-48-50 FOL 210 114171 CONTROL PANEL COVER FOL 111 114050 TWO POSITION SWITCH 112 114061 COMPRESSOR INDICATOR LIGHT (Green) 113 114094 OVERLAY-FOL 18 114058 LED SWITCH 1

14 114203 SNEEZEGUARD-92.875 3 315 114444 SNEEZEGUARD-92.875-BACK-BOTTOM 1 1

Not shown 279500 SCREW, 8-32 x 1/2" PTHMS 18-8SS 72 72Not shown 114055 HEAT LAMP, GRN-42, 208V 8Not shown 226205 RELAY, 120V DASCO 2

16

114454K ASSEMBLY, ELECTRICAL ENCLOSURE, HF91-2-FOL-FOL 1

114378K ASSEMBLY, ELECTRICAL ENCLOSURE, FOL-FOL (Replaced by 114454K in HF91-2-FOL-FOL, 7/1/2018) 1

114441K ASSEMBLY, ELECTRICAL ENCLOSURE, HF91-2-HFL-HFL 117 118434 AC CONNECTION RECEPTACLE 1 118 155680 NUT, KEPS 8-32 HEX ZP 3 319 120001 BLOCK, TERMINAL 4 POLE 1 120 555358 NUT, 6-32 HEX ZINC PLATED NYLON INSERT LOCKNUT 4 421 983385 LUG,GROUND ILSCO TA-2 122 222101 BUSHING,HEYCO 1280 STRAIN RELIEF 3 323 115357 CONNECTOR, 3/4"LIQUIDTIGHT 1 124 167568 LOCKNUT, CONDUIT 3/4" 1 125 279500 SCREW, 8-32 x 1/2" PTHMS, 18-8SS 2 2

Not shown ELC0125 HARNESS, HEAT POWER, HOT FROST 2Not shown ELC0126 HARNESS, TB TO LIGHT OUTLET 1 1Not shown ELC0127 HARNESS-SELF FROST 2 2Not shown ELC0128 HARNESS-POWER TO REFRIG. VALVE 1 2Not shown ELC0129 HARNESS-REFIG. PRESSURE SW 1 1Not shown ELC0130 HARNESS-HEAT + FROST CONTROL 2Not shown ELC0220 CABLE - REF. SWITCH 91 1 1Not shown ELC0254 HARNESS-RELAY HEAT JUMPER 1Not shown ELC0253 HARNESS, HF91PS 2

Not shown

ELC0300 CORD, POWER 15A 1ELC0156 POWER CORD, MOLDED, NEMA L14-20P (Replaced by ELC0300 in 114378) 1ELC0219 JUMPER 64, 91 – Power to Refrig. Valve 1 1ELC0178 POWER CORD, MOLDED, NEMA L14-30P 1 1



IPL-CB-HF-0040 14 3/11/2019

DISPLAY LIGHTS

ITEM PART NO. DESCRIPTION HF35-2ALL

HF48-2ALL

HF50-2ALL

HF64-2HFL FOL

HF91-2ALL

1 114073 LED POWER CORD 2 2 2 2 2 2

2 114051-8 LED DISPLAY LIGHT 8" 6 10 10 12 12 18

3114074 30W LED POWER SUPPLY 1 1 1

114088 75W LED POWER SUPPLY 1 1 1Not shown 114081 12" LED CONNECTING CABLE 2

32 1

3/11/2019 15 IPL-CB-HF-0040


REFRIGERATION ASSEMBLY

ITEM PART NO. DESCRIPTION

HF35-2-HFL & FOL

HF48-2-HFL & FOL

HF50-2-HFL & FOL

HF64-2-HFL & FOL

HF91-2-HFL & FOL

1 226736 UNIT, CONDENSING 1/2 HP, 404A, 115V 1 1 1 1 22 114445 COMPRESSOR START CAPACITOR 1 1 1 1 13 114447 COMPRESSOR RELAY-POTENTIAL KIT 1 1 1 1 14 114452 SITE GLASS 1 1 1 1 15 114446 COMPRESSOR RUN CAPACITOR 1 1 1 1 1

6 114336 CORD GRIP 2 2 2 2 47 114451 FILTER DRIER 1 1 1 1 18 114449 CONDENSER FAN MOTOR 1 1 1 1 19 114450 CONDENSER FAN BLADE 1 1 1 1 1

10 114448 CONDENSER COIL 1 1 1 1 1

11 222101 BUSHING, HEYCO 1280 STRAIN RELIEF 2 2 2 2 2

12 114080 CHECK VALVE 2 2 2 2 2

13 114078 LOW PRESSURE CONTROL 1 1 1 1 2

14 114379 BRACKET, ACCUMULATOR 1 1 1 1 2

15 526805 INSULATION, ACCUMULATOR 1 1 1 1 2

16 226117 ACCUMULATOR, SPORLAN 3" DIA. 3/8" FITTINGS 1BS 1 1 1 1 2

17 216553 SOLENOID, REFRIG W/COIL 120V 2 2 2 2 2

18114075 TEV THERMOSTATIC EXPANSION VALVE 2 2 2

114423 TEV THERMOSTATIC EXPANSION VALVE EFS-1/4-Z 2 2

14

16

1718

15

1312

12

115

1

4

6

7

89

10

23

Note: Items 2, 3 & 5 are locatedinside the enclosures indicated.


IPL-CB-HF-0040 16 3/11/2019

HOT FROST WIRING DIAGRAM – HF MODELS

L1

L2

L3

N

Lower

Shelf R

efrig. Valve

1212

Top Shelf R

efrig. Valve

1212

Power B

ox (U

nder Shelf)

CO

MPR

ESSOR

CONDENSER

FAN

REFR

IGER

ATIO

N C

ON

STAN

T PR

ESSUR

E SW.

ON

Plug Block

12" 4.2W

LED Light

Shelf Light Pow

er Switch

ADD

ITION

AL LIG

HTS

Light PowerSupply

Power Connect Block

ON

Plug Block

12" 4.2W

LED Light

Shelf Light Pow

er Switch

ADD

ITION

AL LIG

HTS

L1

L2

L3

N

Shelf Heat

Power B

ox (U

nder Shelf)

L1

L2

L3

N

CO

LDO

FF

Lower

Shelf R

efrig. Valve

CO

LDLight

Shelf Option – Frost

(w/o H

eat Option)

1212

Power B

ox (U

nder Shelf)

CO

MPR

ESSOR

CONDENSER

FAN

REFR

IGER

ATIO

N C

ON

STAN

T PR

ESSUR

E SW.

Shelf Option – H

eat (w/o Frost O

ption)

WHT

BLK

BLK WH

T

BLK

WH

TBLK

BLKBLK

WH

TBLK

BLK

BLK

RED

WH

TBLK

BLK

BLK

BLK

REDREDBLK

WHT

WH

T

RED

WHT

WH

T WH

TBLK

WH

T

BLKW

HT

Top Shelf

ELC0116 R

ev. C 08/30/2018

Hot & Frost Configuration - Top & Lower Shelf

RED

BLKCO

LDLight

Dial

Infinite Switch

HO

T Light

Rear Elem

ent

Front Element

Top Shelf Heat

CO

LDC

ENTER

O

FFH

OT

BLK

BLK

OR

NBLK

RED

BLKBLK

GR

N

GR

N

RED

RED

RED

BLKYELBR

N

BLKBLK

REDBLK

WH

T

BLK

CO

LDLight

Dial

Infinite Switch

HO

T Light

Rear Elem

ent

Front Element

CO

LDC

ENTER

O

FFH

OT

BLK

BLK

OR

NBLK

RED

BLKBLK

GR

N

GR

N

RED

RED

RED

BLKYELBR

N

BLK

BLK

RED

Lower Shelf

Lower Shelf H

eat

Dial

Infinite Switch

HO

T Light

Rear Elem

ent

Front Element

BLK

BLK

OR

NBLK

RED

GR

N

GR

N

RED

RED

RED

BLKYEL

Lower Shelf H

eat

RED

BLK

H2

H1

L2P

L1

RED

Wiring D

iagram – D

uke Hot Frost

(HF M

odels)

H1

PILO

TL1 H

2

L2 TOP

Dial Infinite S

witch

H2

H1

L2P

L1

H2

H1

L2P

L1

Model

Top Shelf Heat

(Option)

Lower Shelf H

eat(O

ption)

HF35Front: 24", 350WRear: 30", 450W

Front: 24", 350WRear: 30", 450W

HF48Front 42", 675WRear: 36", 575W

Front 42", 675WRear: 36", 575W

HF50Front: 42", 675WRear: 42", 675W

Front: 42", 675WRear: 42", 675W

HF64Front: 54", 925WRear: 60", 1050W

Front: 54", 925WRear: 60", 1050W

HF91Front: 54" & 30",1375WRear: 54" x 30", 1375W

Front: 54" & 30",1375WRear: 54" x 30", 1375W

Heat Elem

ent Configurations

3/11/2019 17 IPL-CB-HF-0040


HOT FROST WIRING DIAGRAM – 91" HF MODELS

L1

L2

L3

N

Lower Shelf Refrig. Valve

1212

Top Shelf Refrig. Valve

1212

Power Box (Under Shelf)

COMPRESSOR

CONDENSER

FAN

REFRIGERATION

CONSTANT PRESSURE SW

.

ON12" 4.2W

LED Light

Shelf Light Power Switch

ADDITIONAL LIGHTS

Light PowerSupply

ON12" 4.2W

LED Light

Shelf Light Power Switch

ADDITIONAL LIGHTS

BLK

RED

WHT

BLK

BLK

BLK

BLK

REDREDBLK

WHT

WHT

RED

WHT

WHT

WHT

BLK

WHT

BLKW

HT

Top ShelfELC0252 Rev. A 11/20/2017

BLKCOLDLight

Dial Infinite Switch

HOT Light

COLDCENTER

OFFHOT

ORNBLK

REDBLK

BLK

YELBRN

BLKBLK

REDBLK

WHT

BLK

COLDLight


HOT Light

Rear Element

Front Element

COLDCENTER

OFFHOT

BLK

BLK

ORNBLK

RED

BLK

BLK

GRN

GRN

REDRED

REDBLK

YELBRN

BLK

BLK

RED

Lower Shelf Heat

Wiring Diagram

– Duke Hot Frost 91" M

odels

H2H1

L2P

L1

H2H1

L2P

L1

120Vac Coil

N.C.

N.O.

BLK

BLK

BLK

WHT

BLK

BLKBLK

Plug Block

Power Connect Block

Plug Block

BLK

BLK

REDRED

REDBLK

120Vac Coil

N.C.

N.O.

BLK

BLK

BLK

WHT

BLK

BLKBLK

Bottom Shelf

H1

PILOTL1 H2

L2 TOP


REDRED

REDRED

NONC

COM

COIL

BLK – Output to Heater Splice

WHT – Frost

Light ‘N’ Splice

BLK – H1 Output Splice

BLK – Power Switch L1

Relay Connections


IPL-CB-HF-0040 18 3/11/2019

Notes

3/11/2019 19 IPL-CB-HF-0040


Notes


IPL-CB-HF-0040 20 3/11/2019

Duke Manufacturing Company2305 N. Broadway

St. Louis, MO 63102Phone: 314-231-1130

Toll Free: 1-800-735-3853Fax: 314-231-5074www.dukemfg.com

hot frost units - parts town · 3/11/2019 7ipl-cb-hf-0040 illustrated parts list for hot frost...

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