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Carrier AQUAZONE VQL, Installation, Start-Up And Service Instructions Manual

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Carrier AQUAZONE VQL Installation, Start-Up And Service Instructions Manual Download Page 25

25

Table 5E — 50VQL100 Blower Performance Data

                                  LEGEND

NOTES:
1. Bold numbers require 2 horsepower motor.
2. Due to alternate sheaves, ‘Turns Open’ may vary within ±0.5 turn from the

position shown above.

3. Units factory shipped with standard static sheave and drive at 2.5 turns

open (3500 cfm at 0.7 in. wg ESP Wet Coil). Other speeds require field
selection.

4. ISO/ARI rating point with standard static sheave and drive at 3.5 turns

open (3500 cfm at 0.45 in. wg ESP Wet Coil). Other speeds require field
selection.

5. For applications requiring higher static pressures, contact your local

representative.

6. Performance data does not include drive losses and is based on sea level

conditions.

7. Do not operate in gray region.
8. All airflow is rated at lowest voltage if unit is dual voltage rated, i.e., 208 v

for 208-230-v units.

9. For wet coil performance first calculate the face velocity of the air coil (Face

Velocity [fpm] = Airflow [cfm]/Face Area [sq ft]). Then for velocities of
200 fpm reduce the static capability by 0.03 in. wg, 300 fpm by 0.08 in. wg,
400 fpm by 0.12 in. wg and 500 fpm by 0.16 in. wg.

Table 5F — 50VQL120 Blower Performance Data

                                  LEGEND

NOTES:
1. Bold numbers require 2 horsepower motor.
2. Due to alternate sheaves, ‘Turns Open’ may vary within ±0.5 turn from the

position shown above.

3. Units factory shipped with standard static sheave and drive at 2.5 turns

open (4000 cfm at 0.5 in. wg ESP Wet Coil). Other speeds require field
selection.

4. ISO/ARI rating point with standard static sheave and drive at 2 turns open

(4000 cfm at 0.6 in. wg ESP Wet Coil). Other speeds require field
selection.

5. For applications requiring higher static pressures, contact your local

representative.

6. Performance data does not include drive losses and is based on sea level

conditions.

7. Do not operate in gray region.
8. All airflow is rated at lowest voltage if unit is dual voltage rated, i.e., 208 v

for 208-230-v units.

9. For wet coil performance first calculate the face velocity of the air coil (Face

Velocity [fpm] = Airflow [cfm]/Face Area [sq ft]). Then for velocities of
200 fpm reduce the static capability by 0.03 in. wg, 300 fpm by 0.08 in. wg,
400 fpm by 0.12 in. wg and 500 fpm by 0.16 in. wg.

RATED

CFM

EXTERNAL STATIC PRESSURE (in. wg)

0.0

0.1

0.2

0.3

0.4

0.5

0.6

0.7

0.8

0.9

1.0

1.1

1.2

1.3

1.4

1.5

2700

BHP

0.50

0.56

0.63

0.70

0.77

0.84

0.90

0.97

1.03

1.10

1.17

1.23

1.30

RPM

561

599

635

670

704

736

767

797

826

854

881

907

933

Turns Open

4.5

3.5

2.5

1.5

4.5

4

3.5

3

2

1.5

1

0.5

0

2900

BHP

0.57

0.63

0.70

0.78

0.86

0.92

0.99

1.06

1.13

1.20

1.26

1.33

1.40

RPM

576

613

648

682

714

746

776

805

833

861

887

913

938

Turns Open

4

3

2

1

4.5

4

3

2.5

2

1.5

1

0.5

0

3100

BHP

0.58

0.64

0.71

0.78

0.86

0.94

1.02

1.10

1.19

1.27

1.35

1.43

1.52

1.60

RPM

553

590

626

660

693

724

755

784

813

841

868

894

919

944

Turns Open

4.5

3.5

2.5

2

1

4.5

3.5

3

2.5

2

1.5

1

2.5

2

3300

BHP

0.66

0.73

0.80

0.87

0.94

1.02

1.11

1.19

1.28

1.36

1.45

1.53

1.62

1.70

RPM

569

604

638

671

703

734

764

793

821

848

874

900

925

950

Turns Open

4

3

2.5

1.5

4.5

4

3.5

3

2.5

2

3.5

3

2.5

2

3500

BHP

0.68

0.75

0.82

0.89

0.96

1.04

1.12

1.21

1.28

1.36

1.44

1.52

1.59

1.67

1.75

RPM

549

584

618

651

683

714

744

773

802

829

856

882

907

932

956

Turns Open

4.5

3.5

3

2

1

4.5

4

3.5

2.5

2

1.5

3

2.5

2

2

3700

BHP

0.78

0.85

0.92

0.99

1.07

1.15

1.23

1.31

1.40

1.48

1.55

1.63

1.70

1.78

RPM

566

600

633

665

696

726

755

783

811

838

864

889

914

939

Turns Open

4

3.5

2.5

1.5

1

4

3.5

3

2.5

4

3.5

3

2.5

2

3900

BHP

0.82

0.89

0.96

1.03

1.10

1.18

1.26

1.35

1.43

1.52

1.62

1.71

1.81

RPM

550

584

616

648

679

709

738

766

794

821

847

873

898

Turns Open

4.5

3.5

3

2

1.5

4.5

4

3.5

3

4

4

3.5

3

4100

BHP

0.93

1.00

1.08

1.15

1.23

1.31

1.39

1.48

1.56

1.66

1.75

1.85

RPM

570

602

633

664

693

722

751

778

805

832

857

883

Turns Open

4

3.5

2.5

1.5

1

4.5

3.5

5

4.5

4

3.5

3

A

—

Standard Static Sheave/Standard Motor

B

—

Low-Static Sheave/Standard Motor

E

—

High-Static Sheave/Large Motor

BHP —

Brake Horsepower

RPM —

Revolutions Per Minute

RATED

CFM

EXTERNAL STATIC PRESSURE (in. wg)

0.0

0.1

0.2

0.3

0.4

0.5

0.6

0.7

0.8

0.9

1.0

1.1

1.2

1.3

1.4

1.5

2800

BHP

0.53

0.60

0.67

0.74

0.81

0.87

0.94

1.01

1.08

1.15

1.21

1.28

1.35

RPM

569

606

642

676

709

741

771

801

830

857

884

910

936

Turns Open

4

3

2.5

1.5

4.5

4

3.5

2.5

2

1.5

1

0.5

0

3000

BHP

0.54

0.60

0.67

0.74

0.82

0.89

0.98

1.06

1.16

1.22

1.29

1.36

1.43

1.50

RPM

546

583

619

654

687

719

750

780

809

837

864

891

916

941

Turns Open

4.5

4

3

2

1

4.5

4

3

2.5

2

1.5

1

0.5

0

3200

BHP

0.62

0.68

0.75

0.82

0.90

0.98

1.06

1.15

1.24

1.34

1.43

1.51

1.58

1.65

RPM

561

597

632

666

698

729

759

789

817

844

871

897

922

947

Turns Open

4.5

3.5

2.5

1.5

1

4

3.5

3

2.5

2

1.5

1

0.5

0

3400

BHP

0.70

0.77

0.84

0.91

0.99

1.07

1.16

1.24

1.33

1.42

1.50

1.58

1.67

1.75

RPM

576

611

645

677

709

739

769

797

825

852

878

904

929

953

Turns Open

4

3

2

1.5

4.5

4

3.5

3

2.5

1.5

1

0.5

0

2

3600

BHP

0.73

0.80

0.87

0.94

1.01

1.09

1.17

1.26

1.35

1.44

1.53

1.63

1.69

1.74

1.80 

RPM

557

592

625

658

689

720

750

778

806

833

860

886

911

935

959

Turns Open

4.5

3.5

2.5

2

1

4.5

4

3

2.5

2

1.5

1

0.5

0

2

3800

BHP

0.83

0.90

0.97

1.05

1.12

1.20

1.29

1.37

1.46

1.55

1.65

1.75

1.85

1.95

2.06

RPM

575

608

640

672

702

732

760

788

816

842

868

894

918

943

966

Turns Open

4

3

2.5

1.5

4.5

4

3.5

3

2.5

2

1.5

1

0.5

2

1.5

4000

BHP

0.87

0.94

1.01

1.09

1.16

1.24

1.33

1.41

1.50

1.59

1.68

1.78

1.88

1.98

2.08

2.19

RPM

560

593

624

656

686

715

744

772

799

826

852

878

902

927

951

974

Turns Open

4.5

3.5

2.5

2

1

4.5

4

3.5

3

2

1.5

1

0.5

2.5

2

1.5

4200

BHP

0.99

1.07

1.14

1.22

1.29

1.38

1.46

1.55

1.63

1.73

1.82

1.92

2.02

2.12

2.23

2.34

RPM

580

611

642

672

701

729

757

785

811

837

863

888

912

936

960

983

Turns Open

4

3

2.5

1.5

4.5

4

3.5

3

2.5

2

1.5

1

2.5

2

2

1.5

4400

BHP

1.13

1.20

1.28

1.36

1.44

1.52

1.61

1.69

1.79

1.88

1.98

2.07

2.17

2.28

2.39

2.49

RPM

601

631

660

689

717

745

772

798

824

850

875

899

923

947

970

993

Turns Open

3.5

2.5

2

1

4.5

4

3.5

3

2.5

2

3.5

3

2.5

2

1.5

1

4600

BHP

1.27

1.35

1.43

1.51

1.59

1.68

1.77

1.86

1.95

2.05

2.14

2.25

2.35

2.45

2.56

2.67

RPM

623

652

680

707

734

761

787

813

839

864

888

912

936

959

981

1003

Turns Open

2.5

2

1.5

4.5

4

3.5

3

2.5

4

3.5

3

2.5

2

2

1.5

1

A

—

Standard Static Sheave/Standard Motor

B

—

Low-Static Sheave/Standard Motor

C

—

High-Static Sheave/Standard Motor

E

—

High-Static Sheave/Large Motor

BHP —

Brake Horsepower

RPM —

Revolutions Per Minute

B

A

B

A

E

C

E

Summary of Contents for AQUAZONE VQL

Page 1: ...anger Well Systems 32 OPERATION 32 33 Power Up Mode 32 Units with Aquazone Complete C Control 32 Units with Aquazone Deluxe D Control 32 SYSTEM TEST 33 34 Test Mode 33 Retry Mode 33 Aquazone Deluxe D Control LED Indicators 33 SERVICE 34 35 Filters 34 Water Coil 34 Condensate Drain Pans 34 Refrigerant System 34 Condensate Drain Cleaning 34 Air Coil Cleaning 34 Condenser Cleaning 35 Checking System ...

Page 2: ...ser to file all necessary claims with the shipping company 1 Verify unit is correct model for entering water tempera ture of job 2 Be sure that the location chosen for unit installation pro vides ambient temperatures maintained above freezing Well water applications are especially susceptible to freezing 3 Be sure the installation location is isolated from sleeping areas private offices and other ...

Page 3: ...20 x 20 2 20 x 25 and 1 20 x 18 FPI Fins per Inch TPI Threads per inch UNIT 50VQL 080 100 120 160 200 240 300 NOMINAL CAPACITY tons 61 2 81 2 10 13 17 20 25 COMPRESSOR S Qty Type 1 Scroll 1 Scroll 1 Scroll 2 Scroll 2 Scroll 2 Scroll 2 Scroll WEIGHTS lb Operating 600 685 735 1120 1265 1350 1465 Shipping 610 695 745 1145 1275 1375 1475 AIR COIL Aluminum Fins Copper Tubes Total Face Area sq ft 9 00 1...

Page 4: ...er 6 Horizontal unit shipped with filter bracket only This bracket should be removed for return duct connection CONNECTIONS Water Outlet 11 4 FPT Water Inlet 11 4 FPT Condensate Drain 3 4 FPT High Voltage Access 7 8 2 2 K O Low Voltage Access 7 8 2 2 K O LEGEND BSP Blower Service Panel CAP Control Access Panel CSP Compressor Service Panel 1 2 3 4 5 HORIZONTAL MODEL OVERALL CABINET DISCHARGE CONNEC...

Page 5: ... should be removed for return duct connection CONNECTIONS Water Outlet 11 4 FPT Water Inlet 11 4 FPT Condensate Drain 3 4 FPT High Voltage Access 7 8 K O Low Voltage Access 7 8 DIA LEGEND BSP Blower Service Panel CAP Control Access Panel CSP Compressor Service Panel 1 2 3 4 5 UNIT 50HQL OVERALL CABINET in DISCHARGE CONNECTIONS in Duct Flange 0 10 in WATER CONNECTIONS in ELECTRICAL KNOCKOUTS in RET...

Page 6: ...l Valve Ball Valve with integral P T plug Stainless steel braid hose with integral J swivel Building Loop Fig 2 Typical Horizontal Installation 50HQL Units T Optional Discharge Supply Air Optional Discharge Access Panel Access Panel Access Panel Access Panel Vibration Pad Control Box Supply Air Supply Water Return Water Balancing Valve Valves Trap Condensate 24 V Remote Mtd Stat Power Supply Disco...

Page 7: ...ice Panel CAP Control Access Panel CSP Compressor Service Panel NRP Non Removable Panel CONNECTIONS Water Inlet 11 2 FPT Water Outlet 11 2 FPT Condensate Drain 1 FPT High Voltage Access 13 8 or 13 4 K O Low Voltage Access 1 2 K O 1 2 3 4 5 Fig 4A 50VQL080 Unit Dimensions UNIT 50VQL OVERALL CABINET DISCHARGE CONNECTIONS Duct Flange 0 10 in WATER CONNECTIONS ELECTRICAL KNOCKOUTS RETURN AIR CONNECTIO...

Page 8: ...ons NOTES 1 All dimensions in inches cm 2 Units require 3 91 clearance for water connec tions CAP CSP and BSP service access 3 All side panels are removable except those iden tified by NRP Non Removable Panel LEGEND BSP Blower Service Panel CAP Control Access Panel CSP Compressor Service Panel NRP Non Removable Panel UNIT 50VQL OVERALL CABINET DISCHARGE CONNECTIONS Duct Flange 0 10 in WATER CONNEC...

Page 9: ...arance for water connec tions CAP CSP and BSP service access 3 All side panels are removable except those identi fied by NRP Non Removable Panel LEGEND BSP Blower Service Panel CAP Control Access Panel CSP Compressor Service Panel NRP Non Removable Panel Fig 4C 50VQL300 Unit Dimensions UNIT 50VQL OVERALL CABINET DISCHARGE CONNECTIONS Duct Flange 0 10 in WATER CONNECTIONS ELECTRICAL KNOCKOUTS RETUR...

Page 10: ...ers Proper attach ment of hanging rods to building structure is critical for safety See Fig 2 Rod attachments must be able to support the weight of the unit See Table 1 for unit operating weights VERTICAL UNITS 50VQL Vertical units are available in rear or front return air configurations Sound minimization is achieved by enclosing the unit with in a small mechanical room or a closet Additional mea...

Page 11: ...run of the condensate line should be at least 1 inch for every 10 feet of run in the direction of flow Avoid low points and unpitched piping since dirt collects in low or level areas and may cause stoppage and overflow Install a condensate trap at each unit with the top of the trap positioned below the unit condensate drain connection Design the length of the trap water seal based upon the amount ...

Page 12: ...uld not be used due to system high pressure and temperature extremes Water Supply and Quantity Check water supply Water supply should be plentiful and of good quality See Table 3 for water quality guidelines In all applications the quality of the water circulated through the heat exchanger must fall within the ranges listed in the Water Quality Guidelines table Consult a local water treat ment fir...

Page 13: ...ppm CuNi Hydrogen Sulfide None Allowable Brackish Use Cupro nickel heat exchanger when concentrations of calcium or sodium chloride are greater than 125 ppm are present Seawater is approximately 25 000 ppm Pressure Temperature Plugs Boiler Drains Strainer Field Installed Accessory 16 to 20 mesh recommended for filter sediment Shut Off Valve Water Control Valve Automatic Balance Valve Expansion Tan...

Page 14: ...former secondary ground via Control C board standoffs and screws to Control Box Ground available from top two standoffs as shown NOTES FOR FIG 9B 1 Compressor and blower motor thermally protected internally 2 All wiring to the unit must comply with NEC and local codes 3 208 230 v transformers will be connected for 208 v operations For 230 v operations disconnect RED lead at L1 and attach ORG lead ...

Page 15: ...15 AQUAZONE THERMOSTAT Fig 8A 50HQL072 120 and 50VQL160 With Complete C Controls Typical ...

Page 16: ...16 AQUAZONE THERMOSTAT Fig 8B 50HQL072 120 and 50VQL160 with Deluxe D Controls Typical ...

Page 17: ...17 AQUAZONE THERMOSTAT Fig 9A 50VQL080 120 with Complete C Controls Typical ...

Page 18: ...18 AQUAZONE THERMOSTAT Fig 9B 50VQL080 120 with Deluxe D Controls Typical ...

Page 19: ...19 AQUAZONE THERMOSTAT Fig 10A 50VQL200 300 with Complete C Controls Typical ...

Page 20: ...20 AQUAZONE THERMOSTAT Fig 10B 50VQL200 300 with Deluxe D Controls Typical ...

Page 21: ... 1 5 2 4 12 4 14 9 20 Large 1 10 0 75 1 2 0 3 1 13 1 15 6 25 575 518 633 Standard 1 8 2 54 1 1 5 1 9 10 1 12 1 20 Large 1 8 2 54 1 2 0 2 3 10 5 12 5 20 100 208 230 197 253 Standard 1 32 1 195 1 1 5 5 8 37 9 45 9 70 Large 1 32 1 195 1 2 0 6 2 38 3 46 3 70 460 414 506 Standard 1 16 4 95 1 1 5 2 4 18 8 22 9 35 Large 1 16 4 95 1 2 0 3 1 19 5 23 6 40 575 518 633 Standard 1 12 0 80 1 1 5 1 9 13 9 16 9 2...

Page 22: ... ESP external static pressure con ditions See Tables 5A 5J for unit airflows When fully closed the sheave will produce the highest static capability higher rpm To adjust sheave position follow the procedure outlined below 1 Loosen belt tension and remove belt 2 Loosen set screw on fan motor 3 Open sheave to desired position 4 Retighten set screw and replace belt NOTE Set belt tension as outlined b...

Page 23: ...9 0 75 0 81 0 86 0 92 0 99 1 05 1 11 1 17 1 24 1 30 1 37 1 44 1 51 1 57 RPM 667 705 742 779 814 849 884 917 950 983 1015 1046 1078 1108 1138 1168 Turns Open 1 5 1 0 4 5 4 0 3 0 2 5 2 0 1 0 0 5 0 0 3 5 3 0 2 5 2 5 2 0 1 5 2800 BHP 0 81 0 87 0 93 1 00 1 06 1 12 1 19 1 25 1 32 1 39 1 46 1 52 1 60 1 67 1 74 1 81 RPM 729 764 799 833 866 899 931 962 993 1024 1054 1084 1114 1143 1171 1199 Turns Open 5 0 ...

Page 24: ...5 2 50 RPM 1127 1154 1181 1207 1232 1257 1281 1306 1329 1352 1375 1398 1420 1441 1463 1485 Turns Open 0 5 4 5 4 0 3 5 3 0 2 5 2 0 1 5 1 0 0 5 0 0 0 0 3 5 3 0 3 0 2 5 4200 BHP 1 84 1 91 1 98 2 04 2 10 2 16 2 22 2 28 2 34 2 40 2 47 2 53 2 59 2 65 2 71 2 77 RPM 1164 1191 1217 1241 1266 1291 1314 1337 1360 1383 1406 1427 1449 1470 1492 1513 Turns Open 4 0 3 5 3 0 2 5 2 5 2 0 1 5 1 0 0 5 0 0 3 5 3 5 3 ...

Page 25: ...9 0 96 1 04 1 12 1 21 1 28 1 36 1 44 1 52 1 59 1 67 1 75 RPM 549 584 618 651 683 714 744 773 802 829 856 882 907 932 956 Turns Open 4 5 3 5 3 2 1 4 5 4 3 5 2 5 2 1 5 3 2 5 2 2 3700 BHP 0 78 0 85 0 92 0 99 1 07 1 15 1 23 1 31 1 40 1 48 1 55 1 63 1 70 1 78 RPM 566 600 633 665 696 726 755 783 811 838 864 889 914 939 Turns Open 4 3 5 2 5 1 5 1 4 3 5 3 2 5 4 3 5 3 2 5 2 3900 BHP 0 82 0 89 0 96 1 03 1 1...

Page 26: ...036 1066 1095 1123 Turns Open 2 1 5 0 5 4 5 4 3 2 5 2 1 5 0 5 0 3 2 5 2 1 5 1 4800 BHP 1 11 1 20 1 28 1 37 1 46 1 56 1 65 1 74 1 84 1 93 2 03 2 13 2 23 2 33 2 43 2 53 RPM 670 705 740 774 807 840 872 903 934 964 993 1022 1051 1079 1107 1134 Turns Open 1 5 1 4 5 4 3 5 2 5 2 1 5 1 0 5 3 2 5 2 2 1 5 1 5200 BHP 1 36 1 45 1 55 1 64 1 74 1 84 1 94 2 04 2 14 2 24 2 34 2 45 2 55 2 66 2 77 2 87 RPM 708 741 ...

Page 27: ... 852 878 904 929 953 Turns Open 4 3 2 1 5 4 5 4 3 5 3 2 5 1 5 1 0 5 0 2 7200 BHP 0 73 0 80 0 87 0 94 1 01 1 09 1 17 1 26 1 35 1 44 1 53 1 63 1 69 1 74 1 80 RPM 557 592 625 658 689 720 750 778 806 833 860 886 911 935 959 Turns Open 4 5 3 5 2 5 2 1 4 5 4 3 2 5 2 1 5 1 0 5 0 2 7600 BHP 0 83 0 90 0 97 1 05 1 12 1 20 1 29 1 37 1 46 1 55 1 65 1 75 1 85 1 95 2 06 RPM 575 608 640 672 702 732 760 788 816 8...

Page 28: ...ned before starting the unit A ten percent solu tion of dishwasher detergent and water is recommended for both sides of the coil Rinse thoroughly with water FIELD SELECTABLE INPUTS Jumpers and DIP dual in line package switches on the control board are used to customize unit operation and can be configured in the field C Control Jumper Settings See Fig 8A 9A and 10A WATER COIL FREEZE PROTECTION FP1...

Page 29: ...utput Dehumidification Fan Mode Switch 5 provides selection of normal or dehumidification fan mode Select OFF for dehu midification mode The fan speed relay will remain OFF dur ing cooling stage 2 Select ON for normal mode The fan speed relay will turn on during cooling stage 2 in normal mode Switch 6 Not used Boilerless Operation Switch 7 provides selection of boiler less operation and works in c...

Page 30: ...di ty and corrosive water or air will adversely affect the unit per formance reliability and service life POWER SUPPLY A voltage variation of 10 of name plate utilization voltage is acceptable UNIT STARTING CONDITIONS All units start and op erate in an ambient of 45 F with entering air at 40 F entering water at 20 F and with both air and water at the flow rates used NOTE These operating conditions...

Page 31: ... method is to install a flow control device These devices are typically an orifice of plastic material de signed to allow a specified flow rate that are mounted on the outlet of the water control valve Occasionally these valves produce a velocity noise that can be reduced by applying some back pressure To accomplish this slightly close the leaving isolation valve of the well water setup Flushing O...

Page 32: ...all subsequent compressor calls the random start delay is omitted HEATING STAGE 2 To enter Stage 2 mode terminal W is active Y is already active Also the G terminal must be active or the W terminal is disregarded The compressor relay will remain on and EH1 is immediately turned on EH2 will turn on after 10 minutes of continual stage 2 demand NOTE EH2 will not turn on or if on will turn off if FP1 ...

Page 33: ...l will continue normal operation NOTE If 3 consecutive faults occur without satisfying the thermostat input call to terminal Y the control will go into lockout mode The last fault causing the lockout is stored in memory and can be viewed by entering Test mode Aquazone Deluxe D Control LED Indica tors There are 3 LED indicators on the D Control STATUS LED Status LED indicates the current status or ...

Page 34: ...omb of the correct tooth spacing when straightening mashed or bent coil fins DESCRIPTION STATUS LED Green TEST LED Yellow FAULT LED Red ALARM RELAY Normal Mode On Off Flash Last Fault Code in Memory Open Normal Mode with PM On Off Flashing Code 8 Cycle closed 5 sec open 25 sec D Control is non functional Off Off Off Open Test Mode On Flash Last Fault Code in Memory Cycling Appropriate Code Night S...

Page 35: ...n insulating rubber sleeve on liquid line near filter drier Use a digital thermometer for all temperature measurements DO NOT use a mercury or dial type thermometer 2 Connect pressure gage to discharge line near compressor 3 After unit conditions have stabilized read head pressure on discharge line gage NOTE Operate unit a minimum of 15 minutes before checking charge 4 From standard field supplied...

Page 36: ...freeze protection Be sure FP1 is located in the discharge fluid and FP2 is located in the air discharge See Fig 17 0 0 10 0 20 0 30 0 40 0 50 0 60 0 70 0 80 0 90 0 0 0 20 0 40 0 60 0 80 0 100 0 120 0 140 0 Temperature F Resistance kOhm Fig 16 Thermistor Nominal Resistance SUCTION COMPRESSOR DISCHARGE COAX EXPANSION VALVE FP2 FP1 LIQUID LINE WATER IN WATER OUT CONDENSATE OVERFLOW CO AIR COIL FREEZE...

Page 37: ... high external static Check Tables 5A 5J X Air temperature out of range Too much cold vent air Bring entering air temperature within design parameters X Improper freeze protect set ting 30 F vs 10 F Normal airside applications will require 30 F only X X Bad thermistor Check temperature and impedance correlation Condensate Fault Code 6 X X Blocked drain Check for blockage and clean drain X X Improp...

Page 38: ...Thermostat improperly located Check location and for air drafts behind thermostat X X Unit undersized Recheck loads and sizing check sensible cooling load and heat pump capacity X X Scaling in water heat exchanger Perform Scaling check and clean if necessary X X Inlet water too hot or cold Check load loop sizing loop backfill ground moisture High Head Pressure X Reduced or no airflow in heating Ch...

Page 39: ...NS BEEN MADE AND IS FLUID AVAILABLE AT HEAT EXCHANGER Y N HAS PUMP BEEN TURNED ON AND ARE ISOLATION VALVES OPEN Y N HAS CONDENSATE CONNECTION BEEN MADE AND IS A TRAP INSTALLED Y N IS AN AIR FILTER INSTALLED Y N II START UP IS FAN OPERATING WHEN COMPRESSOR OPERATES Y N IF 3 PHASE SCROLL COMPRESSOR IS PRESENT VERIFY PROPER ROTATION PER INSTRUCTIONS Y N UNIT VOLTAGE COOLING OPERATION PHASE AB VOLTS P...

Page 40: ...OLING CYCLE ANALYSIS HEAT OF EXTRACTION ABSORPTION OR HEAT OF REJECTION FLOW RATE GPM x TEMP DIFF DEG F x FLUID FACTOR Btu hr SUPERHEAT SUCTION TEMPERATURE SUCTION SATURATION TEMPERATURE DEG F SUBCOOLING DISCHARGE SATURATION TEMPERATURE LIQUID LINE TEMPERATURE DEG F Use 500 for water 485 for antifreeze SUCTION COMPRESSOR DISCHARGE COAX EXPANSION VALVE F F AIR COIL F PSI WATER OUT WATER IN F PSI F ...

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