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AMABILIA DORFC-1 manual

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Table of contents for the manual

  • Page 1

    Manual 2100-518B Page 1 of 30 W ARNING: After ushing is complete, but prior to pump motor start-up, loosen the lar ge screw in the center of the pump motor(s) to allow air to escape. Once water has seeped out around the screw , re-tighten. Failure to perform this step will likely result in premature pump motor failure! PUMP MOTOR REPLACEMENT : B[...]

  • Page 2

    Manual 2100-518B Page 2 of 30 CONTENTS Getting Other Informations and Publications ......... 3 General Information Flow Center Nomenclature ....................................... 4 Application Description ................................................................ 4 Safety ................................................................. 4 Da[...]

  • Page 3

    Manual 2100-518B Page 3 of 30 GettinG Other infOrma tiOn and Publica tiOns These publications can help you install the air conditioner or heat pump. Y ou can usually nd these at your local library or purchase them directly from the publisher . Be sure to consult current edition of each standard. National Electrical Code ....................... A[...]

  • Page 4

    Manual 2100-518B Page 4 of 30 GeOthermal flOw centers nOmencla ture flOw center descriPtiOn The DORFC Series Flow Centers are a compact, easy to mount polystyrene cabinet that contains 3-way valves and pump(s) with connections for ushing, lling and pumping uids for geothermal closed loop systems. The proven design is foam insulated to prev[...]

  • Page 5

    Manual 2100-518B Page 5 of 30 Manual 2100-518A Page 5 of 30 0 10 20 30 40 50 60 70 0 5 10 15 20 25 30 35 Flow ( GPM) Head (Feet) FIGURE 1B PERFORMANCE MODEL DORFC-2 FLOW CENTER 0 5 10 15 20 25 30 35 0 5 10 15 20 25 30 35 Flow ( GPM) Head (Feet) FIGURE 1A PERFORMANCE MODEL DORFC-1 FLOW CENTER FLOW CENTER PERFORMANCE flOw center PerfOrmance[...]

  • Page 6

    Manual 2100-518B Page 6 of 30 G F B D H MIS- 2658 11 .4 31 .5 5 .1 6 .7 12 .7 19 .1 A B C D E F G H I NCH ES 13 .5 10 .3 7 .5 12 .4 2 .0 2 .6 5 .0 4 .7 CM 34 .3 26 .2 T YPE SH IPPI NG W EI G HT DORF C-1 26 L BS DORF C-2 31 L BS C A dimensiOnal dra winG fiGure 2 flOw center dimensiOns[...]

  • Page 7

    Manual 2100-518B Page 7 of 30 nOtice The Flow Center must be mounted with the pump shaft in the horizontal position. In other words, it should always be mounted in a vertical position (not on its back or mounted to the ceiling). See Figure 3. The pump should be located as close to the unit as possible to limit the length of rubber hose kit or inter[...]

  • Page 8

    Manual 2100-518B Page 8 of 30 OK HOR IZONT AL OK IM PE LLER S HAFT HOR IZONT AL IM PE LLER S HAFT MIS- 2659 NO IM PE LLER S HAFT CAN N OT BE VE RTIC AL fiGure 3 PumP hOrizOnt al aPPlica tiOns[...]

  • Page 9

    Manual 2100-518B Page 9 of 30 1/4" T AP CON S CR E WS MIS- 2660 1/4" LAG B OL TS DIRECT L Y I NTO S T UD fiGure 4 mOuntinG FIGURE 4A Studded W all Mounting FIGURE 4B Masonry W all Mounting[...]

  • Page 10

    Manual 2100-518B Page 10 of 30 The Flow Center features Double O-Ring ttings for installation exibility and ease of installation – maintaining a reliable connection. T able 1 illustrates the connection options available for Flow Centers. Pressure drop in piping systems should be calculated to ensure adequate ow through the unit. All pipi[...]

  • Page 11

    Manual 2100-518B Page 1 1 of 30 1" swivel X double O-ring dOrfP1-s 1" copper sweat X double O-ring with 1/4" fPt Port & Pressure/t emperature t est Plugs dOrs1-s elbow , 1" hose barb X double O-ring with 1/4" Port and Pressure/ t emperature t est Plugs dOrb1-90-4hc elbow , 1" mPt X double O-ring with 1/4" Port[...]

  • Page 12

    Manual 2100-518B Page 12 of 30 mul tiPle unit tO sinGle lOOP cOnnectiOn In instances where multiple units are connected to a singular loop, our recommendation is to apply a ow center to each individual system with full-port balancing valves installed on each unit. See Figure 6. fiGure 5a flOw center cOnnectiOn tO GV series mOdel MIS-2621 A PUMP [...]

  • Page 13

    Manual 2100-518B Page 13 of 30 fiGure 5b flOw center cOnnectiOn tO Gt series mOdel NOTE: APPLY PETROLEUM JELLY TO O-RINGS TO PREVENT DAMAGE AND AID IN INSERTION WATER IN WATER OUT GOUND LOOP PIPE FROM GROUND LOOP PIPE TO BRASS ADAPTERS NOTE: IF USED SUPPORT WALL BRACKET WITH A FIELD FABRICATED 1" FLEXIBLE HOSE HOSE CLAMPS FLOW METER OPTIONAL V[...]

  • Page 14

    Manual 2100-518B Page 14 of 30 fiGure 5c flOw center cOnnectiOn tO Qw series mOdel NOTE: Apply petroleum jelly to o-rings to prevent damage and aid in insertion MIS-2748 A FLEXIBLE HOSE for Model No.) (See Spec Sheet GROUND LOOP PIPE FROM PUMP MODULE PIPE TO GROUND LOOP WATER OUT[...]

  • Page 15

    Manual 2100-518B Page 15 of 30 GROUND FULL PORT BALL VALVE FOR BALANCING LOOP 4. All units must include P/T ports for flow rate measure and balancing. FIELD SUPPLIED MIS-2664 NOTES: 1. Piping is shown schematically. Actual pipe diameter and layout must be determined before installation. 2. Pressure drop calculation must be made to verify that paral[...]

  • Page 16

    Manual 2100-518B Page 16 of 30 Power wiring to the Flow Center should conform to all applicable codes. Figure 7 shows the required wiring between the geothermal heat pump and the ow center . Note : the ow center is only available in 208/230 V olt, 60 Hz, 1-phase. The ow center electrical connection interior of the heat pump control panel i[...]

  • Page 17

    Manual 2100-518B Page 17 of 30 L2 L1 3 PU SH 3 PU SH T er mi na l Blo ck FLOW CENT ER CO NN ECTI ON FLOW CENT ER ELECTRIC AL ENTRA NCE MIS- 2665 38 Circui t B rea k ers R ed 37 Bl a ck 2 fiGure 7 electrical cOnnectiOns[...]

  • Page 18

    Manual 2100-518B Page 18 of 30 All Flushing of earth loops should be performed using a 1.5 HP or lar ger pump (as specied by IGSHP A). Flushing can be accomplished using three different methods. The rst ushing method applies a one-step installation of the loop, unit and inside piping. The second method allows a Loop Contractor to use us[...]

  • Page 19

    Manual 2100-518B Page 19 of 30 SU PP LY RET URN MIS- 2661 flushinG & charGinG (cOntinued) fiGure 8 cOnnectinG flush cart tO flOw center[...]

  • Page 20

    Manual 2100-518B Page 20 of 30 MIS- 2662 FLUSH L OO P ON LY FLUSH L OO P& UN IT T OG ETH ER flushinG & charGinG (cOntinued) fiGures 9a & 9b flOw center V al Ve POsitiOninG[...]

  • Page 21

    Manual 2100-518B Page 21 of 30 FLUSH UN IT O NLY O PE RATI ON MIS- 2663 flushinG & charGinG (cOntinued) fiGures 9c & 9d flOw center V al Ve POsitiOninG[...]

  • Page 22

    Manual 2100-518B Page 22 of 30 flushinG & fillinG earth lOOP and unit(s) tOGether All air and debris must be removed from the earth loop piping system before operation. Flush the loop with a high volume of water at a high velocity (2 fps in all piping in accordance with IGSHP A guidelines). 1. Connect the unit and loop to the ow center . 2. [...]

  • Page 23

    Manual 2100-518B Page 23 of 30 flushinG unit Onl y (alsO used when rePlacinG unit , cOaXial cOil, hOse kit Or PumP) 1. Connect unit to ow center . 2. Rotate 3-way valve to position shown in Figure 9C. 3. Remove access port caps and plugs and connect either ush cart or Bard DORGHMT tting (service only - not intended for primary ush). 4. [...]

  • Page 24

    Manual 2100-518B Page 24 of 30 1. Check to make sure the loop and unit isolation valves are completely open and the ush ports are closed and sealed (see Figure 9D). 2. Geothermal units have two low pressure switches installed. One switch is intended for Ground W ater Applications (default factory wired - blue wires), and the second is intended f[...]

  • Page 25

    Manual 2100-518B Page 25 of 30 10 120 110 100 90 80 70 60 50 40 30 20 0 Retaining cap, hand tighten only Pete's test plug Test plug cap Barbed 90° adapter MIS-2622 A NOTE: Slide retaining cap back to expose double o-rings. Apply petroleum jelly to o-rings to prevent damage and aid in insertion with guage adaptor Dial face pressure guage Therm[...]

  • Page 26

    Manual 2100-518B Page 26 of 30 t able 3b Gt series cOil Pressure drOP t able 3c Qw series cOil Pressure drOP model GPm Gtc36s1 Gtc48s1 Gtc60s1 Psid ft. hd. Psid ft. hd. Psid ft. hd. 3 0.1 0.23 4 0.5 1.15 0.9 2.08 5 1.2 2.77 1.4 3.23 6 1.7 3.92 2.3 5.31 7 2.3 5.31 3.2 7.38 2 4.61 8 3.1 7.15 4.1 9.46 2.5 5.77 9 4.1 9.46 5.1 1 1.77 3.2 7.38 10 6.1 14.[...]

  • Page 27

    Manual 2100-518B Page 27 of 30 Problem Possible causes checks & corrections W ater Drips Out Condensation Insulate piping, check for insulation gaps. W ater Leak Inspect/tighten ttings. Low Flow / No Flow Power Loss Check power supply from the heat pump. Blown Circuit Breaker Reset circuit breaker for ow center in heat pump control box. B[...]

  • Page 28

    Manual 2100-518B Page 28 of 30 Selection of antifreeze solutions for ground loop applications requires consideration of many important factors, which may have long-term implications in regards to performance and system component life. Each area of concern leads to a different antifreeze solution. The fact that there is no “ideal” antifreeze and[...]

  • Page 29

    Manual 2100-518B Page 29 of 30 Propylene Glycol – Non-toxic, non-corrosive, expensive, hard to handle when cold, poorest heat transfer , has formed “slime-type” coatings inside system piping. Propylene Glycol is acceptable in systems anticipating loop temperatures no colder than 40°F (4.4°C). These systems typically use antifreeze because o[...]

  • Page 30

    Manual 2100-518B Page 30 of 30 antifreeze Verifica tiOn Both Glycol and Alcohol based antifreeze solutions can be veried to the specic percentage of volume within the ground loop system. One of the easiest ways to check this is through use of a Hydrometer to check the specic density of the ground loop uid and comparing these to the char[...]