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WFI EKW FX10, Installation Manual

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WFI EKW FX10 Installation Manual Download Page 10

10

EKW FX10 INSTALLATION MANUAL

Electrical

Notes: All fuses are type “D” time delay (or HACR circuit breaker in USA).

Source pump amps shown are for up to 1/2 HP pump.

Load pump amps shown are for small circulators.

Unit

Model

Rated

Voltage

Voltage

Min/Max

Compressor

Total Unit

FLA

Min Ckt

Amp

Max

Fuse

Max

Ckt Brk

RLA

LRA

EKW06

220-240/50/1

198/264

10.9

58.0

10.9

13.6

20

20

380-420/50/3

342/462

4.5

26.0

4.5

5.6

10

10

EKW08

220-240/50/1

198/264

15.4

82.0

15.4

19.3

30

30

380-420/50/3

342/462

5.1

35.0

5.1

6.4

10

10

EKW12

220-240/50/1

198/264

21.1

136.0

21.1

26.4

45

45

380-420/50/3

342/462

7.7

51.0

7.7

9.6

15

15

EKW17

220-240/50/1

216/264

25.0

149.0

25.0

31.3

50

50

380-420/50/3

342/462

10.6

75.0

10.6

13.3

20

20

All fuses type “D” time delay.

 

Summary of Contents for EKW FX10

Page 1: ...er 2008 Installation Information Water Piping Connections Electrical Startup Procedures Troubleshooting Preventive Maintenance FX10 50 hz Hydronic Heat Pumps R 410A Refrigerant 6 thru 17 kW EKW FX10 Installation Manual ...

Page 2: ...MUI Voltage 9 FX 10 with N2 card and MUI 6 220 240 50 1 0 FX 10 with LonWorks card and MUI 7 380 420 50 3 3 FX 10 with BACnet card and MUI A Standard with IntelliStart Desuperheater Requires accessory pump kit B FX 10 without interface with IntelliStart 0 None C FX 10 with N2 card without interface with IntelliStart 2 Hot Water Generation without D FX 10 with LonWorks card without interface with I...

Page 3: ...Coil Temperature Limit AI 4 19 3 15 Load Low Water Coil Temperature Limit AI 5 19 3 16 Entering Source Water Temp AI 6 19 3 17 Compressor Proving BI 1 19 3 18 Emergency Shutdown BI 2 19 3 19 Low Pressure Switch BI 3 19 3 20 Source Side Low Water Coil Temperature Limit Select BI 4 19 3 21 Source Side Low Water Coil Temperature Limit Selection BI 5 19 3 22 Y1 System Enable Command BI 7 20 3 23 Sourc...

Page 4: ...hanical rooms These units are not approved for outdoor installation and therefore must be installed inside the structure being conditioned Do not locate in areas subject to freezing Piping Both source as well as load fluid piping must be at least as large as the unit connections on the heat pump larger on long runs Process Water Applications For process water applications it is recommended that a ...

Page 5: ...o select the proper pump be certain that the system pressure drop is calculated correctly If the job requirements are outside the pump curve an alternate pump will need to be obtained to maintain the necessary flow Flow Rate GPM L s Feet of Head kPa 0 5 0 32 40 119 6 35 104 7 30 89 7 20 59 8 15 44 9 10 29 9 25 74 8 10 0 63 15 0 95 20 1 26 25 1 58 30 1 89 35 2 21 Flow Rate GPM L s Feet of Head kPa ...

Page 6: ...ented to allow installation in potable water applications Figures 4 and 5 show how to connect a potable water system Figure 4 Suggested Domestic Water Heater Hookup CO LD W ATER IN HOT W ATE R OUT EL EC TRIC W ATE R HEAT ER HOT W ATE R ST ORAGE EQ UAL TO A O S MITH TJ 80A EW 020 HOT W ATER OUT SOURCE OUT IN EX PAN SI ON TANK IF R EQUIR ED PUMP PT PORTS PT PORTS UNIONS VALVES BOILER DRAIN BOILER DR...

Page 7: ...acid flushing of the heat exchanger is possible Make sure there is not a check valve in the diptube of the tank UNIONS VALVES PT PORTS PT PORTS LOAD IN SOURCE OUT COLD WATER IN HOT WATER OUT FLOW CENTER ELECTRIC WATER H EATER EKW06 Pump SOURCE IN LOAD OUT EXPAN SIONTANK IF REQUIRED DIP TUBE P T RELIEF TO FLOOR DRAIN BOILER DRAIN BOILER DRAIN PT PORTS ...

Page 8: ...d possibly burn out the transformer Check total VA draw of the water valve s and ensure it is under 40 VA Discharge water from a heat pump can be disposed of in various ways depending on local building codes i e recharge well storm sewer drain field adjacent stream or pond etc Most local codes restrict the use of sanitary sewer for disposal Consult your local building and zoning departments to ens...

Page 9: ...ve as much air as possible Then pressurize the loop to a static pressure of 50 75 psi 345 517 kPa This is normally adequate for good system operation Ensure that the flow center provides adequate flow through the unit by checking pressure drop across the heat exchanger and by comparing it to the figures shown in the tables on page 36 Usually 3 GPM ton 0 054 L s kW or minimum 2 25 GPM ton 0 04 L s ...

Page 10: ...nit FLA Min Ckt Amp Max Fuse Max Ckt Brk RLA LRA EKW06 220 240 50 1 198 264 10 9 58 0 10 9 13 6 20 20 380 420 50 3 342 462 4 5 26 0 4 5 5 6 10 10 EKW08 220 240 50 1 198 264 15 4 82 0 15 4 19 3 30 30 380 420 50 3 342 462 5 1 35 0 5 1 6 4 10 10 EKW12 220 240 50 1 198 264 21 1 136 0 21 1 26 4 45 45 380 420 50 3 342 462 7 7 51 0 7 7 9 6 15 15 EKW17 220 240 50 1 216 264 25 0 149 0 25 0 31 3 50 50 380 4...

Page 11: ...0 0 50 EKW12 32 5 826 26 3 668 22 0 559 1 00 1 00 1 00 1 00 0 50 0 50 EKW17 32 5 826 26 3 668 22 0 559 1 00 1 00 1 00 1 00 0 50 0 50 Dimensional Data Sound data ALTERNATE WIRING KNOCKOUT Back View Front View LOW VOLTAGE PUMP WIRING LINE VOLTAGE SOURCE WATER IN SOURCE WATER OUT LOAD WATER IN ALTERNATE WIRING KNOCKOUT LOAD WATER OUT OPTIONAL DESUPERHEATER CONNECTION TOUCH PAD CONTROLLER ALTERNATE WI...

Page 12: ...mp The load pump directly connects to the fuse terminal block for the load pump Control Box Relocation The control box can be installed on the rear of the unit To relocate the control box follow the procedures below Remove all power sources to the unit 1 Remove the unit s top panel 2 Cut all plastic wire 3 ties to the following a High pressure switch black wires b Low pressure switch blue wires c ...

Page 13: ...troller is configured for operating a comfort heating cooling load and a domestic hot water load The load switching is accomplished by energizing de energizing the Load Water Valve output BO 9 The controller performs pump sampling operations at specified durations and intervals when the loads are satisfied with BO 9 switching between the loads In the Setpoint mode the controller operation is initi...

Page 14: ...degrees seconds product Y2 Threshold the turn on threshold of the second stage referencing the composite variable within the PID block This variable is a degrees seconds product Load OnDly Time sets the minimum time spent looking at a satisfied load condition before moving on to the next load CompStrtDly is the compressor start delay setting HP Model allows field switching from Reversible to Heati...

Page 15: ... Outputs Configuration SINGLE STAGE WW WITH STAGING SETPOINT CONTROL Input Name Input Location Output Name Output Location Entering Load Water Temperature AI 1 Reversing Valve BO1 Leaving Load Water Temperature AI 2 Compressor Start Stop BO2 Entering Source Water Temperature AI 3 Secondary Unit Heat Cool Select BO3 Source low water coil temperature limit Protection AI 4 Secondary Unit Enable Y2 BO...

Page 16: ...e in a user adjustable fashion when no compressor calls exist in order to allow a determination of the need to run the compressor In a domestic cycle a pump sample period is 1 2 of the domestic operation cycle length In a comfort cycle the sample period is 1 2 of the comfort operation cycle length The sample length is 200 seconds initially and is adjustable In the final 60 seconds of a sample oper...

Page 17: ...for source loop pump operation 3 7 3 Aqua stat Mode During the heating cycle the reversing valve will be positioned for heating operation If an aqua stat is being used the aqua stat will command the reversing valve Off on a call for heating When a Y call is initiated and the random restart delay timer is expired accessory output 2 will turn on If the compressor short cycle time delay has been sati...

Page 18: ...p operation 3 8 3 Aqua stat Mode During the cooling cycle the reversing valve will be positioned for cooling operation If an aqua stat is being used the aqua stat will command the reversing valve On for cooling When a Y call is initiated and the random restart delay timer is expired accessory output 2 will turn on If the compressor short cycle time delay has satisfied the compressor and accessory ...

Page 19: ...easure the entering water temperature on the source side of the heat pump 3 17 Compressor Proving BI 1 The compressor proving input shall be a N O input that will monitor the operation of the compressor 3 18 Emergency Shutdown BI 2 The emergency shutdown mode can be activated by a command from a facility management system or a closed contact on BI 2 The Default State for the emergency shutdown dat...

Page 20: ... will be energized after a 5 minute delay time If the flow switch closed at any time after it has been sensed open the fault will clear and the unit will return to normal operation 3 25 Aqua stat O Heating Cooling Select Command BI 9 3 25 1 Aqua stat Mode The aqua stat O Heating Cooling Select command input shall be used to wire a 24 VAC O input from an aqua stat and will control the operation of ...

Page 21: ...ctivate after the compressor minimum on time has been satisfied After the compressor output is turned off it will remain off for at least the compressor minimum off timer has been satisfied The compressor will not operate during the emergency shutdown or lockout modes 4 3 Reversing Valve BO 3 The reversing valve will be cycled on and off based on a command from an aqua stat A six second delay will...

Page 22: ...pling does not apply to Aqua Stat mode of operation Welcome EWT Setpt Oper Mode XXX XXX Info Temp Stat Outputs Settings Maint History Alarms WFI E Series Reversible Single Stage Water to Water Duplexed Load Setpoint Controller PROSSWWE 01 Info Temperatures Load EWT 57 2 ºF Load LWT 49 0 ºF Src EWT 59 6 ºF Src LWT 66 0 ºF Src Limit Temp 67 0 ºF Load Limit Tmp 48 4 ºF Src Limit 30 0 ºF Load Limit 30...

Page 23: ... the change in temperature on both 6 the load and source side coaxes Compute the formula 7 L s x T x 4 1 antifreeze water Use 4 2 for 100 water Heat of Extraction on the source side in heating Heat of Rejection on the source side in cooling To ensure proper operation compare these values to the capacity tables in the specification catalog Reduce the set point below the incoming load temperature Co...

Page 24: ...mp Cooling Heating ELT 10 C EST 27 C ELT 40 C EST 0 C Capacity kW COP Capacity kW COP EKW06 0 19 0 38 5 5 2 9 EKW08 0 32 0 50 7 2 3 5 7 3 3 2 EKW12 0 44 0 69 10 8 3 7 10 6 3 3 EKW17 0 69 0 88 13 1 3 1 15 1 3 1 All ratings based upon lower Voltage operation of dual Voltage rated units not rated ARI ISO BS EN Ratings Unit Model Ground Loop Heat Pump Cooling Ground Loop Heat Pump Heating Load Liquid ...

Page 25: ... 1 2 10 35 9 9 39 0 56 54 43 4 0 4 31 02 22 8 11 5 1 1 10 33 10 0 30 3 6 89 22 9 12 1 2 10 47 10 0 36 7 26 20 23 2 12 1 2 10 86 10 3 38 8 56 54 0 6 66 88 20 5 11 7 1 2 10 51 10 1 30 1 6 89 20 5 12 1 2 10 66 10 1 36 6 26 20 20 7 12 1 2 11 05 10 3 38 7 56 54 26 6 0 2 7 58 33 2 5 2 1 3 3 86 3 9 6 0 8 96 33 3 5 1 3 3 92 3 9 3 6 33 78 33 6 5 1 4 4 09 4 0 2 8 73 08 1 1 0 4 28 96 30 1 5 4 1 3 4 09 4 0 6 ...

Page 26: ...0 67 32 2 0 4 28 27 44 5 10 6 1 8 8 80 5 9 21 1 7 58 44 6 11 1 8 8 92 6 0 26 6 27 58 44 8 11 1 8 9 28 6 1 28 3 60 67 0 6 59 98 42 3 10 8 1 8 8 96 6 0 20 9 7 58 42 4 11 1 8 9 09 6 0 26 5 27 58 42 5 11 1 8 9 44 6 1 28 2 60 67 0 2 6 89 52 3 11 5 1 8 9 69 6 4 31 1 6 89 52 5 12 1 8 9 83 6 5 37 1 26 20 53 0 12 1 8 10 21 6 6 39 0 56 54 43 4 0 4 28 27 45 4 12 0 1 8 10 19 6 7 30 4 6 89 45 5 12 1 8 10 34 6 ...

Page 27: ...6 5 5 5 1 4 6 9 4 0 24 3 8 27 6 2 6 0 1 5 7 4 4 1 20 3 31 03 6 0 6 3 1 5 7 8 4 1 18 8 66 89 0 57 68 95 7 6 5 6 1 3 6 9 4 2 24 3 8 27 7 5 6 0 1 4 7 4 4 3 20 3 31 03 7 3 6 3 1 5 7 8 4 3 18 8 66 89 0 19 10 34 3 6 5 1 1 5 6 5 3 5 34 9 7 58 3 1 5 5 1 5 7 0 3 6 31 1 28 96 2 7 5 8 1 6 7 4 3 6 29 8 62 74 26 7 0 38 31 72 6 7 5 1 1 4 6 5 3 7 34 9 7 58 6 5 5 6 1 5 7 0 3 8 31 1 28 96 6 3 5 9 1 5 7 4 3 9 29 8 ...

Page 28: ...2 3 7 8 2 0 9 8 3 9 41 9 58 61 37 8 0 38 27 58 27 8 7 0 1 8 8 7 3 9 48 8 6 89 27 5 7 5 1 9 9 4 4 0 43 7 26 89 27 2 7 9 1 9 9 8 4 1 41 9 58 61 0 57 60 67 29 3 7 0 1 7 8 7 4 1 48 8 6 89 29 0 7 6 1 8 9 4 4 2 43 7 26 89 28 9 8 0 1 9 9 8 4 3 41 9 58 61 43 4 0 19 6 89 31 6 9 3 1 1 10 4 8 8 23 1 8 27 30 6 10 1 1 1 11 2 9 0 17 1 31 72 30 0 10 6 1 2 11 7 9 2 14 9 68 95 10 0 0 38 26 20 37 4 9 4 1 0 10 4 9 3...

Page 29: ...31 70 43 3 0 50 17 90 22 1 13 85 1 39 12 46 10 0 31 5 4 14 22 2 14 03 1 40 12 63 10 0 37 34 15 20 22 4 14 52 1 41 13 10 10 3 39 2 31 70 0 76 37 20 20 0 14 08 1 40 12 68 10 1 31 3 4 14 20 1 14 27 1 42 12 86 10 1 37 24 15 20 20 2 14 76 1 43 13 33 10 3 39 1 31 70 26 7 0 25 4 82 33 2 6 94 1 75 5 18 4 0 6 0 5 52 33 3 7 03 1 77 5 26 4 0 3 61 19 30 33 6 7 27 1 79 5 49 4 1 2 8 40 70 1 1 0 50 16 50 30 1 7 ...

Page 30: ... 32 2 0 50 15 20 44 8 14 74 2 20 12 54 6 7 20 3 4 83 44 9 14 94 2 22 12 72 6 7 26 19 15 90 45 1 15 46 2 24 13 22 6 9 28 1 33 80 0 76 32 40 42 5 14 99 2 22 12 77 6 7 20 1 4 83 42 6 15 20 2 24 12 95 6 8 26 08 15 90 42 7 15 72 2 27 13 45 6 9 28 0 33 80 0 25 4 14 52 9 15 92 2 19 13 72 7 3 30 3 4 14 53 1 16 14 2 22 13 92 7 3 36 73 15 20 53 6 16 69 2 24 14 45 7 5 38 8 31 70 43 3 0 50 15 20 45 7 16 65 2 ...

Page 31: ...4 6 17 90 5 6 9 27 1 53 10 80 6 07 19 0 37 20 0 76 38 60 7 4 8 23 1 35 9 58 6 1 24 6 4 83 7 2 8 9 1 43 10 3 6 23 24 6 17 90 7 0 9 35 1 47 10 82 6 35 19 0 37 20 0 25 4 83 3 1 7 25 1 87 9 12 3 9 35 3 4 83 2 6 7 8 1 97 9 8 3 98 35 3 16 50 2 2 8 24 2 03 10 28 4 05 29 9 35 20 26 7 0 50 17 90 6 5 7 34 1 78 9 13 4 1 35 3 4 83 6 2 7 9 1 88 9 8 4 22 35 3 16 50 6 0 8 35 1 94 10 29 4 30 29 9 35 20 0 76 38 60...

Page 32: ...57 42 3 32 40 37 8 0 50 15 90 27 3 10 35 2 23 12 58 4 6 49 7 4 14 26 9 11 2 2 35 13 5 4 76 49 7 15 20 26 6 11 77 2 43 14 19 4 85 42 3 32 40 0 76 33 80 28 9 10 44 2 15 12 59 4 9 49 7 4 14 28 7 11 3 2 27 13 6 4 98 49 7 15 20 28 5 11 87 2 34 14 21 5 07 42 3 32 40 43 3 0 25 4 14 32 7 11 18 1 34 12 52 8 4 21 9 4 83 31 9 12 1 1 41 13 5 8 57 21 9 17 90 31 3 12 71 1 46 14 16 8 72 14 5 38 60 10 0 0 50 15 2...

Page 33: ... 30 43 3 0 69 19 30 23 4 22 78 2 35 20 43 9 7 29 2 4 14 23 5 23 09 2 37 20 72 9 7 36 19 16 50 23 8 23 88 2 39 21 92 10 0 38 4 35 20 1 04 41 40 20 9 23 16 2 37 20 79 9 8 29 0 4 14 21 0 23 48 2 40 21 08 9 8 36 07 16 50 21 1 24 29 2 42 20 52 10 0 38 3 35 20 26 7 0 35 4 83 34 2 10 86 2 72 8 14 4 0 6 7 5 52 34 3 11 01 2 75 8 26 4 0 3 96 20 70 34 5 11 39 2 78 27 58 4 1 3 1 45 50 1 1 0 69 17 90 30 6 11 3...

Page 34: ...2 2 0 69 16 50 45 3 21 82 3 57 18 25 6 1 19 6 4 83 45 4 22 12 3 61 18 51 6 1 25 84 17 20 45 7 22 88 3 65 33 46 6 3 27 8 37 90 1 04 36 50 42 9 22 19 3 61 18 58 6 1 19 4 4 83 42 9 22 49 3 65 18 85 6 2 25 72 17 20 43 1 23 27 3 69 32 12 6 3 27 7 37 90 0 35 4 83 53 8 23 19 3 58 19 60 6 5 29 8 4 14 54 0 23 50 3 62 19 88 6 5 36 48 16 50 54 5 24 31 3 66 38 14 6 6 38 6 35 30 43 3 0 69 16 50 46 1 24 25 3 62...

Page 35: ... 51 5 7 25 49 19 30 3 4 13 86 2 41 16 26 5 8 19 3 41 40 0 76 45 50 6 1 12 30 2 13 14 43 5 8 25 5 4 82 5 8 13 30 2 25 15 55 5 9 25 51 19 30 5 6 13 98 2 32 16 30 6 0 19 3 41 40 0 25 5 52 0 3 10 89 2 94 13 83 3 7 36 2 4 83 1 2 11 78 3 10 14 88 3 8 36 20 17 90 1 7 12 38 3 20 15 58 3 9 30 2 39 30 26 7 0 50 20 70 4 8 11 03 2 81 13 84 3 9 36 2 4 83 4 3 11 92 2 96 14 88 4 0 36 21 17 90 4 1 12 54 3 06 15 5...

Page 36: ...2 6 36 50 37 8 0 50 20 70 25 0 15 20 3 60 18 81 4 2 50 7 4 83 24 4 16 44 3 80 20 24 4 3 50 74 16 50 24 0 17 28 3 92 21 20 4 4 42 7 36 50 0 76 45 50 27 4 15 34 3 47 18 81 4 4 50 7 4 83 27 0 16 58 3 66 20 24 4 5 50 75 16 50 26 7 17 43 3 78 21 21 4 6 42 7 36 50 43 3 0 25 5 52 26 5 17 73 2 08 19 81 8 5 23 7 5 52 25 2 19 17 2 19 21 36 8 8 23 66 20 00 24 2 20 15 2 26 22 41 8 9 15 2 42 70 10 0 0 50 20 70...

Page 37: ... 9 8 38 2 29 00 26 7 0 44 6 89 34 7 14 90 3 68 11 21 4 1 7 2 8 27 34 8 15 10 3 72 11 38 4 1 4 19 21 40 35 1 15 62 3 76 11 86 4 2 3 3 37 90 1 1 0 88 18 60 30 9 15 58 3 72 11 86 4 2 7 5 8 27 30 9 15 79 3 76 12 03 4 2 4 37 21 40 31 1 16 34 3 80 12 54 4 3 3 4 37 90 1 32 32 40 29 5 15 84 3 76 12 08 4 2 7 7 8 27 29 6 16 06 3 80 12 26 4 2 4 43 21 40 29 7 16 61 3 84 12 77 4 3 3 4 37 90 0 44 6 89 37 0 19 0...

Page 38: ...1 00 32 2 0 88 17 20 45 4 28 30 4 90 23 40 5 8 19 5 6 89 45 5 28 68 4 95 23 74 5 8 25 79 17 90 45 8 29 67 5 00 24 67 5 9 27 8 31 00 1 32 30 30 43 0 28 78 4 95 23 82 5 8 19 3 6 89 43 1 29 17 5 00 24 17 5 8 25 68 17 90 43 2 30 17 5 05 25 12 6 0 27 7 31 00 0 44 6 20 54 3 30 51 4 92 25 59 6 2 29 5 6 21 54 5 30 93 4 97 25 96 6 2 36 30 16 50 55 1 31 99 5 01 26 98 6 4 38 5 29 00 43 3 0 88 17 20 46 4 31 9...

Page 39: ... 15 21 14 5 7 26 19 25 50 4 9 18 91 3 25 22 16 5 8 19 6 34 50 1 32 37 90 7 0 16 79 2 88 19 66 5 8 26 2 7 58 6 7 18 15 3 04 21 18 6 0 26 21 25 50 6 6 19 08 3 14 22 21 6 1 19 6 34 50 0 44 8 27 2 0 14 70 3 97 18 67 3 7 36 8 6 89 1 4 15 89 4 19 20 08 3 8 36 78 32 40 1 0 16 70 4 33 21 03 3 9 30 5 32 40 26 7 0 88 21 40 6 0 14 88 3 79 18 67 3 9 36 8 6 89 5 6 16 09 4 00 20 08 4 0 36 78 32 40 5 4 16 91 4 1...

Page 40: ... 42 7 30 30 37 8 0 88 21 40 27 0 19 16 4 96 24 12 3 9 50 8 6 20 26 6 20 71 5 23 25 94 4 0 50 84 40 00 26 3 21 78 5 40 27 17 4 0 42 7 30 30 1 32 37 90 28 7 19 33 4 78 24 11 4 0 50 8 6 20 28 4 20 90 5 04 25 94 4 1 50 84 40 00 28 3 21 97 5 21 27 17 4 2 42 7 30 30 43 3 0 44 8 27 30 3 24 09 2 94 27 04 8 2 24 6 7 58 29 2 26 05 3 11 29 15 8 4 24 65 22 80 28 5 27 38 3 21 30 59 8 5 15 5 35 90 10 0 0 88 21 ...

Page 41: ...0 0 0 2 0 4 0 6 0 8 1 0 1 2 1 4 1 6 0 10 20 30 40 50 60 70 Pressure Drop kPa Flow Rate L s Model Minimum Minimum Maximum Open Loop Flow Rate Closed Loop Flow Rate Flow EKW06 0 188 0 377 0 754 EKW08 0 251 0 503 1 006 EKW12 0 346 0 691 1 382 EKW17 0 440 0 880 1 760 EKW17 EKW12 EKW08 EKW06 ...

Page 42: ...may be open If the compressor dome is extremely hot the overload will not reset 8 until cooled down If the overload does not reset when cool it may be defective If so replace the compressor The internal winding of the compressor motor may be grounded to the compressor shell If so replace the compressor 9 The compressor winding may be open Check continuity with an ohm meter If the winding is open r...

Page 43: ...t a plastic hose from the inlet line of the water to refrigerant heat exchanger to the plastic pail Secure tightly to 5 ensure that circulating solution does not spill refer to Figure 16 Partially fill the plastic pail with clear water about two thirds full and prime the circulating pump Circulate until lines 6 are full Start the circulating pump and slowly add a commercial scale remover to the wa...

Page 44: ...s and recycled disposed as local codes allow Recycling WaterFurnace units are made with valuable recyclable materials There are several items in the unit that can be separated and sold as recycled material In most cases all refrigerant and oil must be drained however some recycle companies will remove the fluids for a fee If a contractor has a refrigerant evacuation machine the old refrigerant can...

Page 45: ...y of continuous product research and development and reserves the right to change design and specifications without notice 2008 WFI Product EKW FX10 Series Type Hydronic Heat Pumps Size 6 thru 17 kW Document Type Installation Manual Part Number GIMEKWFX E Release Date November 2008 ...

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