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WaterFurnace GeoLink FC1-FPT, Installation Manual

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WaterFurnace GeoLink FC1-FPT Installation Manual Download Page 4

4

FLOW CENTER INSTALLATION AND LOOP FLUSHING MANUAL

Flow Center Initial Inspection

Please read the complete instructions before starting installation. Carefully follow instructions to ensure optimum and 

safe operation. Leave the instructions with the owner after installation. The GeoLink

®

 Flow Center and UP Series circulating 

pumps should be installed according to all applicable codes. Unpack the fl ow center and any other component kits required 
and inspect them for shipping damage. Shipping damage claims must be fi led promptly by the purchaser with the freight 
company.

Verify the contents of this package with the following list:
 

(2)  Lag screws 1/4'' X 2.5''

 

(4)  Long sheet metal #10 X 3/4'' screws (for mounting on unit)   

 

(2)  1" MPT Brass plug (Not included with FPTB or GL series)

 (1) 

Decal

 (1) 

Installation 

manual

 

(2)  1-1/4'' PE Socket Adapters (GL models only)

Notes: 

The fl ow centers are injected with foam for condensation prevention during low temperature operation and for noise 

attenuation. Pump heads can be fi eld replaced.

Typical Installation

The Flow Centers are insulated and contain all fl ushing and circulation connections for residential and light commercial 

earth loops which require a fl ow rate of no more than 20 gpm. One-inch female pipe thread fi ttings are furnished with FC1-
FPT, FC1-FPTB, FC2-FPT and FC2-FPTB units for loop connections. Various fi ttings are available for FC1-GL and FC2-GL 
units for loop connections. See Adapter Sets table below and Connection Options table (page 5) for all adapter fi ttings.

Typically, one-pump fl ow centers are used on 3-ton and smaller systems, and two-pump fl ow centers are used on 3.5-ton 

to 6-ton systems. However, this is a rule of thumb, and should always be verifi ed by a pressure drop calculation. 

See "Pres-

sure Drop Calculation Manual" or use Pressure Drop software program to determine correct pump selection.

WARNING: 

Before performing service or maintenance operations on the system, disconnect all power 

sources.  Electrical shock could cause personal injury.  Before applying power, make sure that all covers 
and screws are in place.  Failure to do so could cause risk of electrical shock.

PART NO.

DESCRIPTION

CONNECTION USE

FLOW CENTER 

TYPE

MA4INS

1

" MPT to 1" INS (Hose Barb)*

Loop or unit side connection

FPT

MA5INS

1

" MPT to 1-1 /4" INS (Hose Barb)*

Loop or unit side connection

FPT

MA5PES

1

" MPT to 1-1/4" PE (Socket Fusion)

Loop side connection

FPT

MA4SWV

1” MPT to 1” Swivel Union

Unit side connection

FPT

GL4INS

1

"

 GeoLink fi tting x 1

"

 Hose Barb

Unit side connection

GL

GL4PES

1

"

 GeoLink fi tting x 1

"

 Socket Fusion

Loop or unit side connection

GL

GL5PES**

1

"

 GeoLink fi tting x 1-1/4

"

 Socket Fusion

Loop side connection

GL

GL-FP

1

"

 GeoLink fi tting x 1

"

  cam lever elbow (male)

Flushing port connection

GL

Adapter Sets (Sets consist of 2 connectors)

Notes:

  *Hose Clamps included with barbed adapter sets.

Safety Considerations

General Installation Information

Summary of Contents for GeoLink FC1-FPT

Page 1: ...ing and Charging Procedures Unit Pressure Drop Tables Antifreeze Use Troubleshooting Flow Centers FC1 GL FC2 GL FC1 FPT FC2 FPT FC1 FPTB FC2 FPTB Flush Cart LFC F Flow Center Installation and Loop Flushing Manual Flow Center Installation and Loop Flushing ...

Page 2: ...L Flow Center Model Nomenclature Flow Center Type GL 1 GeoLink Connections w high impact polystyrene cabinet FC 1 GL Number of Pumps FPT 1 Female Pipe Thread Connection w metal cabinet FPTB 1 Female Pipe Thread Connections w bronze volute metal cabinet ...

Page 3: ...omenclature 2 General Installation Information 4 7 Electrical 8 9 Flush Cart Information 10 Flushing and Charging 11 14 Initial Start up 15 16 Unit Pressure Drop Tables 17 18 Troubleshooting 19 Antifreeze Selection and Use 20 21 Pipe Pressure Drop 22 23 Loop Pressurizer 23 ...

Page 4: ...ns Various fittings are available for FC1 GL and FC2 GL units for loop connections See Adapter Sets table below and Connection Options table page 5 for all adapter fittings Typically one pump flow centers are used on 3 ton and smaller systems and two pump flow centers are used on 3 5 ton to 6 ton systems However this is a rule of thumb and should always be verified by a pressure drop calculation S...

Page 5: ...rough center of brackets into one stud Finished wall drywall mounting notes The flow center can be mounted by using two lag screws through drywall into stud through center holes in top and bottom of cabinet Notes Insulation should be used on all inside piping when minimum loop temperatures are expected to be less then 50 F 10 C Use table below for insulation sizes with different piping sizes Recom...

Page 6: ...NUAL Figure 2a FPT Style Flow Center Three Way Valve Position Indicator 1 FPT Access Ports for Flushing 1 FPT Fittings 4 Typical HEAT PUMP CONNECTIONS GROUND LOOP CONNECTIONS 12 38 4 25 13 58 5 88 3 25 2 25 7 30 General Installation Information cont ...

Page 7: ...OP FLUSHING MANUAL Figure 2b GL Style Flow Center A B C D E F G H INCHES 15 0 10 3 7 0 14 0 2 0 2 6 5 0 4 5 CM 38 1 26 0 17 8 35 6 5 1 6 7 12 7 11 4 TYPE SHIPPING WEIGHT FC1 GL 26 LBS FC2 GL 31 LBS General Installation Information cont ...

Page 8: ...k PB1 as shown in Figure 4 The pumps will automatically be cycled as required either by the unit or by a signal from another unit sharing the same flow center Electrical Information Compressor Contactor Transformer External Loop Pump s 208 230 60 1 1 2 HP Max Voltage Selection Rocker Switch PS PB1 Ground Lugs Unit Control Board 208 230 60 1 Service with Ground L1 L2 D C A Compressor Capacitor Figu...

Page 9: ...nit S C Figure 5 Pump Connection Option Figure 6 Pump Connection Option Multiple Units On One Flow Center When two units are connected to one loop pumping system pump control is automatically achieved by connecting the SL terminals in both units with 18 gauge 2 wire thermostat wire These terminals are polarity conscious see Figures 5 and 6 for proper loop pump SL wiring The loop pump s may be powe...

Page 10: ...tions 1 PVC braid Valves 1 high flow ball valves Pump Drain Integral petcock valve Priming Drilled into pump volute housing integral petcock valve to bleed air Tubing 1 Copper type L Hand Truck Industrial P loop handle 600 lb rating fully pneumatic 10 x 3 tires Wiring 15 SJO 12 AWG with 15A male plug Power Switch Liquid tight metal ON OFF switch with box switch rated at 20A 120V Pump Curve for Flu...

Page 11: ...tank reservoir A drop of more than 2 inches indicates that there is air in the loop Power flushing can be achieved using the home s city water supply or well water connected to the flush cart This uses the combined pressure of the flush cart pump and the home s water system for faster flushing After flushing is complete but prior to unit start up remove the large screw from the center of the flow ...

Page 12: ...ne direction only Flush the lowest portion of the system first Depending upon the individual layout this could be the loop or the unit Restart pump Once you have a steady flow of water on the return side from the system deadhead the pump by closing the ball valve on the hose returning to the reservoir This will generate maximum pressure on the system While the return ball valve is closed note the ...

Page 13: ...per Remove caps from flow center access ports Connect flush cart hoses to access ports Position valve stems as shown below Proceed with steps 4 through 8 on page 12 Rotate the flow center valves to isolate the flush cart from the rest of the system Turn off flush cart pump relieve the pressure on the hoses and remove them Replace caps in access ports Remove jumper between unit connections Note If ...

Page 14: ...her length of garden hose to the other port in the flow center leading to drain Flush flow center and unit with domestic water until all air is removed Close boiler drain valve on discharge hose and pressurize system to domestic water pressure approx 40 75 psi 276 517 kPa Remove bleed screw s from loop pumps to purge air from them Close boiler drain valve on supply hose to trap pressure in the sys...

Page 15: ...ed Perform this by deadheading the pump by closing the return hose ball valve This will increase the pressure on the loop via the flush cart pump As the pressure will fluctuate with the seasons higher in winter lower in summer it is suggested that the initial loop pressure be 50 75 psi in winter 40 50 psi in summer If you cannot reach these pressures with the flush cart pump alone turn on the fres...

Page 16: ...t hurt the performance However insufficient flow can significantly reduce capacity and possibly even damage the heat pump in extreme conditions Notes Pressure temperature gauges should be lubricated with a water based lubricant and pushed gently into P T ports to prevent internal damage to ports Digital thermometers and pressure gauges needed for the P T plugs are available from the manufacturer E...

Page 17: ... 16 0 5 8 13 4 E EZ Dual Capacity E036 Low 4 0 1 0 2 2 5 0 1 5 3 4 E036 High 7 0 2 8 6 5 9 0 4 5 10 4 E048 Low 6 0 1 9 4 4 9 0 3 5 8 1 E048 High 9 0 3 5 8 1 12 0 5 6 12 9 E060 Low 8 0 2 0 4 6 11 0 2 9 6 7 E060 High 11 0 2 9 6 7 14 0 4 6 10 6 E072 Low 10 0 2 6 6 0 13 0 4 1 9 5 E072 High 13 0 4 1 9 5 16 0 5 8 13 4 ES Single Speed ES024 4 5 1 8 4 2 6 0 2 7 6 2 ES030 6 0 2 7 6 3 8 0 4 4 10 2 ES Dual C...

Page 18: ...3 0 6 2 14 3 V L X 015 3 0 1 6 3 6 4 0 2 1 4 9 V L X 018 4 0 2 0 4 7 5 0 3 4 7 9 Versatec V L X 024 4 5 3 1 7 2 6 0 6 0 13 9 Horizontal V L X 030 6 0 2 4 5 4 8 0 3 8 8 8 V L X 036 7 0 3 6 8 3 9 0 5 3 12 2 V L X 042 8 0 4 7 10 9 11 0 8 6 19 9 V L X 048 9 0 4 4 10 2 12 0 7 3 16 9 V L X 058 11 0 4 7 10 9 14 0 7 2 16 6 V L X 070 13 0 5 5 12 7 16 0 8 1 18 7 EW020 6 0 4 6 10 7 9 0 10 0 23 2 EW EW030 8 0...

Page 19: ...t shaft is rotating Flush the loop to eliminate the air Add pump capacity Replace Check for leaks add fluid flush loop in the earth loop need more than 3 psi Change type of antifreeze Switch Thermostat to air conditioning to see if flow improves at warmer temperature add antifreeze and measure freeze protection Straighten or replace Noisy Defective pump Air in loop Vibration Replace Flush loop aga...

Page 20: ...r slightly less than methanol high price flammable in concentra tions greater than 25 non corrosive and low viscosity Propylene glycol Nontoxic noncorrosive expensive hard to handle when cold poorest heat transfer has formed slime type coatings inside pipe Poor heat transfer has required its removal in some systems GS4 Potassium acetate Due to its low surface tension GS4 is known to leak through m...

Page 21: ... With reference to 60 F water courtesy of Carbide and Carbon Chemicals Corporation Antifreeze Selection and Use cont 35 10 5 0 10 15 20 25 30 100 90 80 70 60 50 40 30 20 0 10 F by Volume 5 Figure 16 Environol 2000 Freeze Protection Figure 15 Environol 1000 Freeze Protection 35 10 5 5 10 15 20 25 30 35 0 5 10 15 20 25 30 40 F by Volume 0 1 000 0 900 10 20 30 40 50 60 70 80 90 10 P N CAMT Methanol H...

Page 22: ... 16458 6 48 4 77 13165 46 38 35 10 19 19690 20 22 7 79 17206 7 00 4 98 13763 48 21 78 8 13 17954 7 54 5 20 14361 50 23 39 8 47 18703 8 10 5 42 14960 BRINE 4 20 METHANOL 30 F Viscosity 0 002 lbm ft sec Darcy Weisbach Method Density 60 80 lb ft3 FLOW RATE 3 4 IPS SDR 11 1 IPS SDR 11 1 1 4 IPS SDR 11 1 1 2 IPS SDR 11 2 IPS SDR 11 PD ft Vel ft s Re PD ft Vel ft s Re PD ft Vel ft s Re PD ft Vel ft s Re...

Page 23: ... 8962 1 65 1 87 6413 0 87 1 43 5603 0 30 0 91 4479 10 27 79 6 31 12419 9 73 4 06 9958 1 99 2 08 7126 1 04 1 59 6225 0 36 1 01 4976 11 32 83 6 94 13661 11 50 4 46 10953 2 35 2 28 7838 1 23 1 74 6848 0 43 1 11 5474 12 38 23 7 57 14903 13 39 4 87 11949 2 73 2 49 8551 1 44 1 90 7470 0 50 1 22 5972 13 43 98 8 20 16145 15 40 5 27 12945 3 14 2 70 9264 1 65 2 06 8093 0 57 1 32 6469 14 17 53 5 68 13941 3 5...

Page 24: ... of continuous product research and development and reserves the right to change design and specifications without notice Product Flow Center Installation and Loop Flushing Type FC1 GL FC2 GL FC1 FPT FC2 FPT FC1 FPTB and FC2 FPTB LFC 1 Document Type Installation Manual Part Number IM1961 Release Date 05 07 Supercedes IM1961 11 06 ...

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