manualshive.com logo in svg

KE2 Efficiency, Quick Start Manual, Page: 10 / 20

Share
Download
KE2 Efficiency Quick Start Manual Download Page 10

Q.1.3 July 2015

Page 10

KE2 

Evaporator

Efficiency

Quick Start Guide

© Copyright 2015 KE2 Therm Solutions, Inc., Washington, Missouri 63090

Ev

apora

tor F

an Mot

ors

Con1 M

ax HP & Amp Ra

tings (

Total All F

ans)

Voltage 

M

ax HP

M

ax AMPS

230 3Ø

15

42

460 3Ø

30

40

575 3Ø

30

32

 W

iring S

chema

tic - C

ontr

oller with KE2 C

ontac

tor Bo

x

Existing Defr

ost H

ea

ters M

ax Curr

ent Ra

tings

(Amps ar

e T

otal All H

ea

ters)

Rela

y Bo

x P/N

230V 3

Ø

460V 3

Ø

575V 3

Ø

20217

54 A

mps

52 A

mps

52 A

mps

20218

68 A

mps

65 A

mps

62 A

mps

20219

80 A

mps

77 A

mps

62 A

mps

L

egend EFM - 

Ev

apor

at

or F

an Mot

or

DH - 

Defr

ost H

eader

LLS -

 Liquid Line S

olenoid

AUX - 

Auxiliar

y

PT - 

Pr

essur

e T

ransduc

er

T1 SUC

TION - 

Suc

tion T

emper

atur

e

T2 AIR - 

Return 

Air T

emper

atur

e

T3 C

OIL -

 Ev

apor

at

or C

oil 

Temper

atur

e

T4 A

UX - 

Auxiliar

y T

emper

atur

e

EE

V - 

Elec

tric 

Expansion V

alv

e

ECM -

 Elec

tronic

ally C

ommuta

ted Mot

or

D1 - 

Digital Input 1

D2 - 

Digital Input 2

D3 - 

Digital Input 3

- - - 

By others

All field wiring must conf

orm t

o 

loc

al codes

Contac

tor ra

tings per UL508 CSA 22.2

Wiring Schematic - Controller with KE2 Contactor Box

P/N: 

 

20217 - 50A

 

20218 - 65A

 

20219 - 80A

Summary of Contents for Efficiency

Page 1: ...es outside the space Silicone for sealing any box penetrations Accessories to Aid in Installation The following parts are available separately 10 Wire Harness pn 20736 25 Wire Harness pn 20670 40 Wire Harness pn 20737 KE2 Evap Mounting Box pn 20687 Further information on the Wire Harness and Mounting Box can be found in literature Q 1 21 L M N D E O P F B Left Arrow Right Arrow Use to move between...

Page 2: ... a defrost Liquid Vapor Mix Restrictor TEV or EEV Warm Liquid ColdVapor HotVapor Warm Air Cold Air Evaporator Compressor Condenser SaturationTemp F from receiver pressure LiquidTemp atValve F Subcooling Suction Pressure PSI SuctionTemp F evaporator outlet SaturationTemp F calculated from Suct Pressure Superheat Temp Difference TD F return air minus coil temp Coldest point in evap F AMPS Trouble Sh...

Page 3: ...row from these edges towards the center Therefore the sensor location is best situated approximately 1 to 1 1 2 from the outer edges and typically near the bottom 1 3rd portion of the evaporator The sensor needs to be as far away from the defrost heat sources as possible This is most easily located by viewing the current frost pattern The last place frost disappears during the defrost cycle is the...

Page 4: ...roperly route conduit Determine the number of wires to go to the controller Controller power 3 wires Fan control 2 wires Defrost heater control 2 wires Liquid line solenoid 2 wires If the Aux Relay is used the installer will need to supply an ad ditional pair of wires to the controller Aux relay 2 wires Note Install in accordance with local wiring codes KE2 Therm does not accept responsibility for...

Page 5: ...cted to the Power In location us ing a 3 position connector Controllerstillilluminatesdisplaywhen120Visappliedwith208 240V selected however controller will not function properly 6 Fan Relay Strip the end of the 2 wires used for fan control Locate 2 female spade connectors in the accessories kit Crimp on the female spade connectors Plug the connectors to the COM and NO positions of the Fan Relay Fa...

Page 6: ...n ad ditional pair of wires to the controller Strip approx 1 4 wire insulation on end of the 2 wires for the alarm Locate a 3 position connector from the accessories kit Plug into the location as indicated in Wiring Schematic Max relay rating is 3A 11 11 Preparing the Evaporator The evaporator wiring will require access to the high voltage termi nal block on the coil Turn off power to the system V...

Page 7: ...us power to the controller Attach ground wire Note Ground is required for the inter nal safeties to operate properly 16 Evaporator wiring Fans Strip the ends of the wires con nected to the KE2 Evap used to con trol the evaporator fans The fan wires can be attached to the terminal block using either screw down terminals or spade connectors Attach one of wires to the L1 Line This wire will be connec...

Page 8: ...enoid Compressor relay to one of the solenoid leads Attach the wire from the COM on the L L Solenoid Compressor relay to the L1 Line Voltage Connect L2 Neutral to the remain ing L L Solenoid Compressor lead 20 Remove defrost termination Klixon from circuitry Attach one of wires to the L1 Line This wire will be connected to COM of defrost relay on the controller Attach the wire connected to the NO ...

Page 9: ...y 2015 Page 9 KE2 EvaporatorEfficiency Quick Start Guide Copyright 2015 KE2 Therm Solutions Inc Washington Missouri 63090 Wiring Schematic Controller New Installation Wiring Schematic Controller New Installation ...

Page 10: ...7 54 Amps 52 Amps 52 Amps 20218 68 Amps 65 Amps 62 Amps 20219 80 Amps 77 Amps 62 Amps L egend EFM Evaporator Fan Motor DH Defrost Header LLS Liquid Line Solenoid AUX Auxiliary PT Pressure Transducer T1 SUCTION Suction Temperature T2 AIR Return Air Temperature T3 COIL Evaporator Coil Temperature T4 AUX Auxiliary Temperature EEV Electric Expansion Valve ECM Electronically Commutated Motor D1 Digital...

Page 11: ...e the best place to install the sensor The sensor should be located between 8 10 inches away from the face of the evaporator This distance prevents the sensor from sensing heat from the heating elements during the defrost cycle but close enough to accurately sense the return air temperature The sensor bracket may be bent as necessary to locate the sensor in the proper position WARNING Do not allow...

Page 12: ... to the electric heating elements It should be about half the distance between the heat ers if possible In Figure 25B the probe is inserted into the fins ap proximately 1 16 deeper than the stainless shielding Pinch the fins gently together securing the sensor in place This provides thermal ballast to ensure a complete defrost 25 26 Connecting sensor wires to controller The temperature sensors are...

Page 13: ... Range 0 to 150 psia Proof Pressure 450 psi Burst Pressure 1500 psi OperatingTemp 40 to 275 F Temperature Sensor Sensor Specs 60 to 150 F moisture resistant package 208 240 120 120 Temperature Sensors Pressure Transducer T1Suct T4Aux T2Air T3Coil line L1 ground neutral L2 NC NO NO NC NO NC COM COM NC Power In green red black NO Transformer 3A Relay 3A Relay COM COM COM NC NO COM NC NO 18V DI 1 DI ...

Page 14: ...e generally correct for most applications 3 The Setpoint parameters shown in ITALIC are only displayed when a Custom EEV is used 4 Displayed when an EEV is used 5 Only available if mechanical valve is selected When using an electric valve the default suction temperature is required 6 The Setpoint parameters shown in BOLD ITALIC are used for bonded controllers only 7 Only displayed when Run Time De...

Page 15: ...u the left and right arrows will move to the main screen or the adjacent menu The up and down arrows move the user through the available op tions for each group All users are allowed access to the variable alarms All other information is password protected to prevent unau thorized access to the controller s functionality The ENTER button is used to save an input option when it has been changed The...

Page 16: ...b portal And Smart Access provides a customized dashboard of all the controllers on that network on one page Preliminary Connect the KE2 Evap to the customer s network CAT5 Ethernet Cable KE2 EvaporatorEfficiency TM thermsolutions ENTER BACK 2 2 1 2 3 6 5 4 7 Link ACT 100 1000Mbps POWER Customer Network Screen shot of a single KE2 Evap connected through Smart Access Screen shots of Smart Access da...

Page 17: ...n the Introduction Mode menu After setting the Room Temp Defrost Type and Valve Type set Smart Access to Enabled Use the or arrow to change Smart Access to Enabled Press and hold the ENTER button for 3 seconds to save the change Note if using a Defined EEV Refrigerant must be selected too Note if using a Custom EEV Refrigerant Motor Type Motor Step Rate and Max Valve Steps must be selected Introdu...

Page 18: ...ure set point in order for the controller to resume normal fan operation MAX FAN DELAY TIME Maximum amount of time after defrost to resume normal fan operation PUMP DOWN TIME Minimum amount of time between de energizing the liquid line solenoid compressor relay and energizing the defrost relay MULTI AIR TEMP CTRL Select control method to use with multiple room temperature sensors Bonded Control le...

Page 19: ...f DEFROST TYPE AIR 35 F to 90 F 50 F if DEFROST TYPE ELEC HOT GAS COMP ON HOT GAS COMP OFF 40 F if DEFROST TYPE AIR 0 to 90 30 if DEFROST TYPE ELEC 10 if DEFROST TYPE HOT GAS COMP ON HOT GAS COMP OFF 40 if DEFROST TYPE AIR 0 to 90 minutes 45 minutes if DEFROST TYPE ELEC 10 minutes if DEFROST TYPE HOT GAS COMP ON HOT GAS COMP OFF 40 minutes if DEFROST TYPE AIR 0 to 15 minutes 2 minutes 0 to 24 hour...

Page 20: ...ller to the factory default setpoints RESET WEB PASSWORD RESET Reset the web password to the factory default RESET SMART ACCESS Turn Smart Access on or off DISABLE ENABLE DISABLE DHCP Turn DHCP mode on or off DISABLE ENABLE DISABLE DOD INIT Re initialize KE2 defrost algorithm RESET CLEAR MD NO LONGER USED HOLD TO CLEAR MD Parameter Name Description ROOM TEMP Walk in freezer or cooler room temperat...

Reviews:

No comments