Enertech WD240 User manual



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


    
   
Installation & Operations Manual

Revision D
20D814-10NN
20D814-10NN

2
Enertech Global IOM, WD Models
Secon 1: Model Nomenclature and AHRI Performance Data
 ................................................................................................................................... 3
 .................................................................................................................................................... 3
Secon 2: Installaon Introducon
 .................................................................................................................................................................... 4
........................................................................................................................................................ 5
 .................................................................................................................................................................... 5
Secon 3: Installaon Consideraons
 ................................................................................................................................................................ 6
 ............................................................................................................................ 7
Secon 4: Unit Data Informaon
 ................................................................................................................................... 8
........................................................................................................................................................... 9
Secon 5: Unit Piping Installaon
 ................................................................................................................................................................ 10
Secon 6: Anfreeze
 ....................................................................................................................................................... 11
 ................................................................................................................................... 12
Secon 7: Controls
Features ........................................................................................................................................................................ 13
 ................................................................................................................................................... 17
Secon 8: Wiring Diagrams: WD 240 Series
 ........................................................................................................................................ 18
 ........................................................................................................................................ 19
Secon 9: Equipment Start-Up Procedures
................................................................................................................................................ 20
 ............................................................................................................................................ 21
........................................................................................................................................................ 22
................................................................................................................................ 23
Secon 10: Troubleshoong
 .................................................................................................................................................24-26
 ......................................................................................................................................... 27
 .................................................................................................................................... 27
 ............................................................................................................. 27
Secon 11: Warranty Forms & Revision Table
 .................................................................................................................................................................... 28
........................................................................................................................................................... 29
Revision Table ................................................................................................................................................................ 30

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IOM, WD Models Enertech Global


ENERTECH GLOBAL, LLC
2506 S. ELM STREET
GREENVILLE, IL 62246
[phone]








 
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



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- W D 240
Stage:
D = Tandem Compressor *
Type:
W = Water-To-Water
Brand:
G = GeoComfort
H = Hydron Module
T = TETCO
Unit Capacity (Nominal MBTUH):
240, 360
Revision:
D = Current Revision
Voltage:
2 = 208/230V, 60Hz, 3Ph (Commercial)
3 = 460V, 60Hz, 3Ph (Commercial)
4 = 575V, 60Hz, 3Ph (Commercial)
5 = 380V, 60Hz, 3Ph (International)
6 = 200/220V, 50Hz, 3Ph (International)
7 = 380V, 50Hz, 3Ph (International)
8 = 575V, 60Hz, 3Ph (International)
Hot Water Configuration:
0 = None
Standard:
SS = Stock Standard
Exchanger Options:
B = Standard (Brazed Plate)
Blower Options:
A = N/A
Discharge Air Options:
A = N/A
Return Air Options:
A = N/A
D20AAABSS
1:Brand 2:Type 3:Stage
4, 5, 6: Unit Capacity
7: Revision
8:Voltage
9: Hot Water Configuration
10: Return Air Options
11: DischargeAir Options
12: Blower Options
13: Exchanger Options
14& 15:Standard
*two stage - dual single stage compressors
*NOTE:
1. EXPORT SHEET1: TO PDF MAKE SURE TO LEAVE LINE WEIGHTS
ON IN PDF OPTIONS WHEN EXPORTING FILE.
SAVEFILEIN
B:\ENGINEERING\RECORDS\Component Drawings\PDF
WITH THE CURRENT REV. AT THE END OF THE FILE NAME.
MOVE OLD REV. FILE TO THE OBSOLETE FOLDER.
2. EXPORT SHEER2: TOPDFMAKESURETOLEAVELINEWEIGHTS
ON IN PDF OPTIONS WHEN EXPORTING FILE.
SAVEFILEIN
P:\Engineering\Drawings-PDF\NOMENCLATURE
MAKE SURE .PDF FILE NAME MATCHES THE OLD REV.
THAT YOU ARE REPLACING.
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3. DON'T FORGET: TO FILL OUT THE DESCRIPTION
IN THE .IPT FILE iPROPERTIES

    
   
Secon 1: Model Nomenclature and AHRI Performance Data
Unit Model Nomenclature Decoder
AHRI Ground Loop and Ground Water Heat Pump Performance Data
Ground Loop (GL) Notes:





Mbtu/hr COP Mbtu/hr EER
Ground Loop Full Load 222,400 3.3 240,700 15.2
Ground Loop Part Load 130,600 4.3 142,000 21.8
Ground Loop Full Load 318,000 3.3 316,500 14.6
Ground Loop Part Load 189,750 4.3 191,700 19.6
30 TON
HEATING COOLING
MODELS APPLICATION
20 TON

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Enertech Global IOM, WD Models
Secon 2: Installaon Introducon
Introducon





Noces, Cauons, Warnings, & Dangers:
“NOTICE”


“CAUTION”


“WARNING”

“DANGER” 

Inspecon









Note:


Un-packaging















⚠ CAUTION ⚠
Do not operate the geothermal heat pump unit during
building construcon phase.
Unit Protecon








Storage




Removal and Disposal




Pre-Installaon









5
IOM, WD Models Enertech Global
⚠ CAUTION ⚠
GEOTHERMAL equipment is designed for indoor
installaon only. DO NOT install or store unit in
a corrosive environment or in a locaon where
temperature and humidity are subject to extremes.
Equipment is not cered for outdoor applicaons. Such
installaon will void all warranes.
Pre-Installaon Steps
1. 


2. 



3. 


4. 


Secon 2: Installaon Introducon
Components
Master Contactor: 
Logic Board: 


Terminal Strip:

Transformer:
Low Voltage Breaker: 

Reversing Valve:

High Pressure Switch:


Low Pressure Switch:

Flow Switch (Freeze Protecon Device): 

(SOLD SEPARATELY)
Compressor (Copeland Scroll): 


⚠ CAUTION ⚠
Before drilling or driving any screws into cabinet, check
to be sure the screw will not hit any internal parts or
refrigerant lines.

6
Enertech Global IOM, WD Models
Enertech Global D-I-Y Policy


















Equipment Installaon






Electrical



Thermostat



Unit Placement



1. Service Access.


 



 

Pre-Installaon



⧠ 
⧠ 

Secon 3: Installaon Consideraons

7
IOM, WD Models Enertech Global




















•
•
•
•
•
• • • • • • •
Acceptable Operating Conditions
45°F
40°F
35°F
30°F
25°F20°F
15°F10°F
100°F
110°F
115°F
120°F
125°F
130°F
SCROLL COMPRESSOR OPERATING CONDITIONS (WATER TO WATER)
HEATING MODE OPERATION
Source Entering Water Temperature
• • • • •
70°F
65°F
60°F
55°F
50°F
FAILURE ZONE
Acceptable Operating Conditions
Outside Safe Operating Range
Outside Safe Operating Range
•
••
•
75°F
•
80°F
FAILURE ZONE
Load Leaving Water Temperature
Safety
Factor
Safety
Factor
















Secon 3: Installaon Consideraons
Guidelines For Heang Mode Operaon

8
Enertech Global IOM, WD Models
Secon 4: Unit Data Informaon
Unit Dimensional and Physical Data
15
XV. Physical Dimensions
20 & 30 Ton Series
Model
Ground
Hydronic
Inlet
Outlet
Inlet
Outlet
20 Ton
2.0 MPT
2.0 MPT
2.0 MPT
2.0 MPT
30 Ton 2.0 MPT 2.0 MPT 2.0 MPT 2.0 MPT
Physical Data
20 Ton
30 Ton
Compressor
Compliant Scroll
Expansion Device
Thermostatic
Transformer (VA)
50 or 55
150
Weight (lbs)
800
1010
150

9
IOM, WD Models Enertech Global
Secon 4: Unit Data Informaon
Unit Electrical Data
20D237‐19NN:WD240/WD360ElectricalData
Volts Phase LRA RLA
2 208/230 3 239.0 ea. 33.3 ea. 0.0 0.0 66.6 74.9 100
3 460 3 125.0 ea. 17.9 ea. 0.0 0.0 35.8 40.3 50
4 575 3 80.0 ea. 12.8 ea. 0.0 0.0 25.6 28.8 40
5 380 3 145.0 ea. 23.7 ea. 0.0 0.0 47.4 53.3 70
6 200/220 3 239.0 ea. 34.6 ea. 0.0 0.0 69.2 77.9 110
7 380 3 118.0 ea. 17.9 ea. 0.0 0.0 35.8 40.3 50
8 575 3 80.0ea. 12.8 ea. 0.0 0.0 25.6 28.8 40
2 208/230 3 340.0 ea. 55.8 ea. 0.0 0.0 111.6 125.6 175
3 460 3 173.0 ea. 26.9 ea. 0.0 0.0 53.8 60.5 80
4 575 3 132.0 ea. 23.7 ea. 0.0 0.0 47.4 53.3 70
5 380 3 196.0 ea. 34.0 ea. 0.0 0.0 68.0 76.5 110
6 200/220 3 325.0 ea. 50.6 ea. 0.0 0.0 101.2 113.9 150
7 380 3 173.0 ea. 25.0 ea. 0.0 0.0 50.0 56.3 80
8 575 3 132.0 ea. 23.7 ea. 0.0 0.0 47.4 53.3 70
WD240
Model
Voltage
Code/ HWG
Option
60 Hz OR (50 Hz6)
Power Compressor
Notes:
1. All line and low voltage wiring must adhere to the National Electrical Code and local codes, whichever is the
most stringent.
2. In determining the correct supply wire size and maximum length, reference NFPA 70, Section 310. If the
calculation is close to the maximum allowable ampacity of a particular wire size, use the next size up. This will
ensure that no adverse effects occur, such as light dimming and/or shortened compressor life. 3. Min/Max
Voltage: 208/230/60 = 187-252, 460/60 = 432-502, 575/60 = 540-630, 380/50 = 327-418, 200/220/50= 172-242
4. See Wiring Diagrams for proper 460V and 575V power.
5. Voltage Code/ HWG Option 5, 6, & 7 are 50 Hz.
WD360
Max
Brkr
HACR
HWG
Pump
FLA
Ext.
Loop
Pump
FLA
Total
Unit FLA
Min
Circuit
AMPS

10
Enertech Global IOM, WD Models
Water Quality























Water Quality Table
Secon 5: Unit Piping Installaon

   




 
Carbonate   
Corrosion
   
Total Dissolved Solids   

   

   

See Note 4   
Chlorine   
   


Iron Bacteria   
   
Erosion    

   

Notes:
 
 
 

 

 

11
IOM, WD Models Enertech Global
Anfreeze Overview



















Anfreeze Characteriscs




There is no “perfect” anfreeze.


Safety: 

Cost:
Thermal Performance: 

Corrosiveness: 

Stability: 

Convenience: 

Codes: 


Methanol:



Ethanol: 









Propylene Glycol: 







Ethylene Glycol:

Potassium acetate (GS4):




Anfreeze Charging








Secon 6: Anfreeze

12
Enertech Global IOM, WD Models
0.9600
0.9700
0.9800
0.9900
1.0000
1.0100
1.0200
1.0300
1.0400
1.0500
-5
0
5
10
15
20
25
30
32
Specific Gravity
Freeze Protection (deg F)
Procool
Methanol
Propylene Glycol
Figure 6: Anfreeze Specic Gravity
Secon 6: Anfreeze
⚠ CAUTION ⚠
Use extreme care when opening, pouring, and mixing ammable
anfreeze soluons. Remote ames or electrical sparks can ignite
undiluted anfreezes and vapors. Use only in a well venlated area.
Do not smoke when handling ammable soluons. Failure to observe
safety precauons may result in re, injury, or death. Never work with
100% alcohol soluons.
Notes:
 
 
Table 5: Anfreeze Percentages by Volume












    
Methanol    

    




on container label



13
IOM, WD Models Enertech Global
Features






Secon 7: Controls
Lockout Board Layout
20D239−01NN
REVISION HISTORY
REV DESCRIPTION ECN DATE APPROVED
AINITIAL RELEASE FOR UPDATED CONTROLS
SECTION IN IOM 4−29−16 KW
GREEN
HIGH PRESSURE
ORANGE
LOW PRESSURE
RED
FLOW SWITCH
YELLOW
CONDENSATE
OVERFLOW
GREEN
STATUS
ICM LOCKOUT BOARD






Startup/Random Start






Short Cycle Protecon



Test Mode





4-Way Valve Control






 

 



Compressor Control






Safety











Low Pressure (LP)







Note: 


Flow Switch (FS)









14
Enertech Global IOM, WD Models
Secon 7: Controls
Over/Under Voltage Protecon


















Fault Retry










Intelligent Lockout Reset







WD360 Compressor Modules







High Pressure (HP)







Load Heat Exchanger Freeze (LCT)






Source Heat Exchanger Freeze (SCT)









Hot Discharge Gas Temperature (DGT)



Thermistor Sensors






Resistance



Resistance

10  130 
  200 
20  220 
30   
   



15
IOM, WD Models Enertech Global
Secon 7: Controls
CONDITION GREEN
HP
ORANGE
LP
RED
FS
YELLOW
CO
GREEN
STATUS
LTERMINAL‐
24VAC
8,9
NORMALMODE FLASH
TESTMODE
1
HPFAULT FLASH FLASH
HPLOCKOUT ON FLASH FLASH‐2PULSES
LPFAULTFLASH FLASH
LPLOCKOUT ON FLASH FLASH‐4PULSES
WFFAULT(FS)
3
FLASH FLASH
WFLOCKOUT(FS)
3
ON FLASH FLASH‐6PULSES
LOAD/AIRCOILFRZFAULT(LCT)
2,3
FLASH FLASH FLASH
LOAD/AIRCOILFRZLOCKOUT(LCT)
2,3
ON ON FLASH FLASH‐8PULSES
SOURCECOILFRZFAULT(SCT) FLASH FLASH
SOURCECOILFRZLOCKOUT(SCT) ON ON FLASH‐19PULSES
COFAULT
3
FLASH FLASH
COLOCKOUT
3
ON FLASH FLASH‐10PULSES
O/UVOLTAGE FLASH FLASH FLASH FLASH FLASH FLASH‐11PULSES
LCTSENSORLOCKOUT/FAULTY
4
FLASH ON FLASH FLASH‐12PULSES
DGTSENSORFAULTY
3,4
FLASH ON FLASH FLASH‐13PULSES
DLWTSENSORFAULTY
4,7
FLASH ON FLASH FLASH‐14PULSES
SCTSENSORLOCKOUT/FAULTY
4
ON FLASH FLASH FLASH‐15PULSES
LCT&SCTSWAPPED
5
ON ON FLASH‐16PULSES
DGT>220FFAULT
3,6
FLASH FLASH ON FLASH
DGT>220FLOCKOUT
3,6
ON ON ON FLASH FLASH‐18PULSES
DIPSWITCH
FSW
11
AFRZ
TEST
O/U
NOTES:
4.THISFAULTINDICATESABADSENSOR(OPEN,SHORTED,DISCONNECTED,ORINVALIDVALUE).
6.THISFAULT/LOCKOUTINDICATESTHATTHEDISCHARGEGASTEMPERATUREISABOVE220°F.
9.THE'L'TERMINALCONTROLSAFAULTLEDATTHETHERMOSTATORDRIVESANAUXILLIARYFAULTRELAY.
10.UNITSTHATDONOTCONTAINAFLOWSWITCH,WILLCONTAINAJUMPERBETWEENTHE'FS1'AND'FS2'TERMINALS.
5.THECHECKTODETERMINEIFTHELCTANDSCTSENSORSARESWAPPED,OCCURSINTESTMODEONLY,120SECONDSAFTERTHE'CC'
TERMINALISENERGIZED.
7.UNITSWITHOUTDESUPERHEATER(HWG)HAVEA10KRESISTORINPOSITIONT3(DLWT).
8.CONNECTAMULTIMETERACROSSTHE'L'AND'C'TERMINALSTOCHECKFOR24VACLOCKOUTSIGNAL.THERMOSTATTURNSON/FLASHES
'CALLFORSERVICE'INDICATION.
REVD.03/19/18
FEATUREISINACTIVE FEATUREISACTIVE
1.WHENTESTMODEDIPSWITCHIS'ON',GREENSTATUSLEDWILLBEOFF.
2.THELOAD/AIRCOILFREEZEPROTECTIONSENSORISLOCATEDBETWEENTHETXVANDLOADCOAXINWATER‐TO‐WATERUNITS,AND
BETWEENTHETXVANDAIRCOILINWATER‐TO‐AIRUNITS.
3.NOTALLMODELSHAVETHISFEATURE.
11.FSWDIPSWITCHSHOULDNOTBEMODIFIEDINTHEFIELD.FACTORYSETTINGSHOULDBEMAINTAINED(OFF).
LCT&SCTSENSORSAND'FS'TERMINALS
MONITOREDFORFLOW FS'TERMINALSMONITOREDFORFLOW
OPENLOOPMODE‐30FSETTINGFOR
SCT CLOSEDLOOPMODE‐12FSETTINGFORSCT
OPERATESINNORMALMODEWITH
STANDARDDELAYS OPERATESINTESTMODEWITHDELAYSSPEDUP
OFF ON
LOCKOUTBOARDLEDIDENTIFICATION&LTERMINALSTATUS
LOCKOUTBOARDDIPSWITCHES

16
Enertech Global IOM, WD Models
Secon 7: Controls
Lockout Board DIP Switches


20D239−01NN
REVISION HISTORY
REV DESCRIPTION ECN DATE APPROVED
AINITIAL RELEASE FOR UPDATED CONTROLS
SECTION IN IOM 4−29−16 KW
GREEN
HIGH PRESSURE
ORANGE
LOW PRESSURE
RED
FLOW SWITCH
YELLOW
CONDENSATE
OVERFLOW
GREEN
STATUS
ICM LOCKOUT BOARD
Load/Source Temperature Sensing (FSW)






Note: 


An-Freeze (AFRZ)






Test Mode (TEST)














Over/Under Voltage Disable (O/U)

















17
IOM, WD Models Enertech Global
Sequence of Operaon













Note: 


Heang 1st Stage, (Y1)





Heang 2nd Stage, (Y1, Y2)


Cooling Operaon



Cooling 1st stage (Y1, 0)




Cooling 2nd Stage (Y1, Y2, 0)


Secon 7: Controls

18
Enertech Global IOM, WD Models
Secon 8: Wiring Diagrams
WD 240 Series Wiring Diagram

19
IOM, WD Models Enertech Global
Secon 8: Wiring Diagrams
WD 360 Series Wiring Diagram

20
Enertech Global IOM, WD Models
EQUIPMENT START-UP FORM
Customer Name:_________________________________________________________________
Customer Address:_____________________________________________________________________________________
Model #:__________________________________________ Serial #:____________________________________________
Dealer Name:__________________________________________________________________________________________
Distributor Name:_____________________________________________ Start-up Date:____________________________
Installer/Technician:____________________________________________ Date:________________________
enilsihtgnolatuC
Unit Electrical Data
PSI PSI V
PSI PSI A A
PSI PSI A A
GPM GPM GA
A
Loop Type: Open Closed (Circle One)
Line Voltage
Wire Size
Circuit Breaker Size
Cooling
Heating
Cooling
Heating
Flow Rate
*Check pressure drop chart for GPM
Total Unit Amps
Compressor Amps
Flow Rate
Source Water Pressure In
Source Water Pressure Out
Source Water Pressure Drop
ºF ºF
ºF ºF
ºF ºF
Heat of Rejection/Extraction
BTU/HR
BTU/HR
ºF ºF
ºF ºF
ºF ºF
Cooling Heating
ºF ºF
ºF ºF
ºF ºF
Heating
ºF
ºF
ºF
Heating
V
A
GA
A
Source Water Temp. Difference
Cooling
Heating
Source Water Temperature In
Source Water Temperature Out
Source Water Temperature Difference
Cooling
Heating
Load Water Temp. Difference
Cooling
Heating
Heat of Extraction/Rejection = GPM X Water Temp. Difference X 485 (Water & Antifreeze - Closed Loop)
Heat of Rejection
Heat Of Extraction
Load Water Temperature In
Load Water Temperature Out
Load Water Temperature Difference
Heat of Extraction/Rejection = GPM X Water Temp. Difference X 500 (Water - Open Loop)
Air Temperature Difference
Supply Air Temperature
Return Air Temperature
Air Temp. Difference
Auxiliary Heat Operation Only
Supply Air Temperature
*Confirm auxiliary heaters are de-energized for the above readings.
Return Air Temperature
Air Temp. Difference
Auxiliary Heat Electrical Data
CFM = (Watts X 3.413) ÷ (Air Temp. Difference X 1.08)
Watts = Volts X Auxiliary Heater Amps
Line Voltage
Total Amperage (Full kW - All Stages)
Wire Size
Breaker Size
Secon 9: Equipment Start-Up Procedures
Equipment Start-up Form