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23

Table 7 — 

Three Phase Electric Heater Availability

LEGEND

NOTES:

1. Electric Heating Capacities BTUh)=Heater kW x 3413.

2. Electric  Heater  Amp.  for  3-phase  Power  =  (Heater  kW  x  1000)/

(Applied Voltage x 1.73).

Water Treatment

Proper water treatment is a specialized industry. Carrier recom

-

mends consulting a water treatment expert to analyze water for

compliance with water quality parameters listed below, and to rec

-

ommend an appropriate water treatment regimen. Water treatment

experts  are  able  to  recommend  typical  additives  such  as  rust

inhibitors,  scaling  preventative,  antimicrobial  growth  agents,  or

algae  preventatives. Anti-freeze  solutions  may  also  be  used  to

lower the freezing point.

Carrier  water  coil  tubes  and  headers  are  constructed  of

copper.  Multiple  brass  alloys  may  be  present  in  the  valve

package.  It  is  the  user’s  responsibility  to  ensure  tube  and

piping  materials  furnished  by  Carrier  are  compatible  with

treated water. (See Table 8.)

Failure  to  provide proper  water  quality may affect  the  fan  coil

units' warranty.

Table 8 — 

Water Quality Parameters

SERVICE

General

Each unit has an individual operating environment and conditions

that dictate its maintenance schedule. A formal schedule of regular

maintenance and an individual unit log should be established and

maintained.  This  will  achieve  maximum  performance  and  pre

-

serve the service life of each unit.

Observe and adhere to all safety precautions contained in the

preface  of  this  manual  during  all  service  and  maintenance

operations.

For  more  detailed  information  of  service  operations  consult  a

Carrier Sales Representative or the factory.

Coils

Coils should be cleaned by brushing the entering air face between

fins with a stiff brush. Brushing should be followed by cleaning

with a vacuum cleaner. If a compressed air source is available, the

coil may also be cleaned by blowing air through the coil fins from

the leaving air face. This should again be followed by vacuuming.

Units equipped with regularly replaced air filters will require less

frequent coil cleaning.

Electric Resistance Heater Assembly

Electric resistance heaters typically require no scheduled mainte

-

nance when unit air filters are changed properly. The operation

and service life may be affected by other conditions and equip

-

ment in the system. The two most important operating conditions

for an electric heater are proper airflow and proper supply voltage.

High supply voltage and/or poorly distributed or insufficient air

-

flow over the element will result in element overheating and possi

-

ble limit switch openings. (See Tables 6 and 7.)

kW

ELECTRIC HEATER 

AMPS

UNIT SIZE (HEATER STAGES)

THREE PHASE

(1, 2 OR 3 STAGE)

06

08

10

12

16

20/22

30

208v 240v 480v 1 stg 2 stg 1 stg 2 stg 1 stg 2 stg 1 stg 2 stg 3 stg 1 stg 2 stg 3 stg 1 stg 2 stg 3 stg 1 stg 2 stg 3 stg

1.0

2.8

2.4

1.2

X

X

1.5

4.2

3.6

1.8

X

X

X

X

2.0

5.6

4.8

2.4

X

X

X

X

2.5

6.9

6.0

3.0

X

X

X

X

X

3.0

8.3

7.2

3.6

X

X

X

X

X

3.5

9.7

8.4

4.2

X

X

X

X

X

X

4.0 11.1

9.6

4.8

X

X

X

X

X

X

X

X

X

X

X

X

4.5 12.5

10.8

5.4

X

X

X

X

X

X

X

X

X

X

X

X

5.0 13.9

12.0

6.0

X

X

X

X

X

X

X

X

X

X

X

X

6.0 16.7

14.4

7.2

X

X

X

X

X

X

X

X

X

X

X

X

X

X

7.0 19.4

16.8

8.4

X

X

X

X

X

X

X

X

X

X

X

X

8.0 22.2

19.2

9.6

X

X

X

X

X

X

X

X

X

X

X

X

9.9 27.5

23.8

11.9

X

X

X

X

X

X

X

X

X

X

12.0 33.3

28.9

14.4

X

X

X

X

X

X

X

X

X

X

X

X

14.0 38.9

33.7

16.8

X

X

X

X

X

X

X

X

X

15.0 41.6

36.1

18.0

X

X

X

X

X

X

X

X

X

16.0

38.5

19.2

X

X

X

X

X

X

X

X

X

18.0

21.7

X

X

X

X

X

X

19.9

23.9

X

X

X

X

X

X

25.0

30.1

X

X

X

30.0

36.1

X

X

X

X — Available Option

— — Not Available

WATER CONTAINING

REQUIRED CONCENTRATION

SULPHATE

Less than 200 ppm

Ph

7.0-8.5

CHLORIDES

Less than 200 ppm

NITRATE

Less than 100 ppm

IRON

Less than 4.5 mg/l

AMMONIA

Less than 2.0 mg/l

MANGANESE

Less than 0.1 mg/l

DISSOLVED SOLIDS

Less than 1000 mg/l

CaCO3 HARDNESS

300-500 ppm

CaCO3 ALKALINITY

300-500 ppm

PARTICULATE QUANTITY

Less than 10 ppm

PARTICULATE SIZE

800 micron max

Содержание 42DH

Страница 1: ...ns and have a fire extinguisher available Read these instructions thoroughly and follow all warnings or cautions attached to the unit Consult local building codes and appropriate national electrical c...

Страница 2: ...ity for per sonal injury or property damage resulting from improper or unsafe practices during the handling installation service or operation of any equipment CAUTION Disconnect all power prior to any...

Страница 3: ...confirm incoming and control power requirements match available power source Refer to unit nameplate and wiring diagram 1 Review all tags on unit to determine if shipping screws are to be removed Rem...

Страница 4: ...rnished and Installed 5 8 Knockouts For Suspension rods 4 Places top and 4 places Bottom of unit Threaded rod suspension Field Furnished and installed Trapeze Recommended on Unit size 30 Minimum Recom...

Страница 5: ...nces Top View 29 In Minimum Recommened Clearance 29 In Minimum Recommened Clearance 29 In Minimum Recommened Clearance Filter Piping Package For drain pan or coil removal the recommended clearance sho...

Страница 6: ...ouble wall cabi net construction For a different coil and cabinet options use the weight correction factor table Table 1 Total Unit Weight Adjustment NOTES 1 Unit weights shown in pounds 10 are based...

Страница 7: ...Fig 8 All hardware required for assembly is included and the base rails are letter coded for ease of assembly See Fig 9 Fig 8 Base Rails Fig 9 Letter Coding on Base Rail Parts PLACE UNIT ON THE BASE...

Страница 8: ...mixing box with supplied No 8 x 1 2 in sheet metal screws two per side See Fig 12 For bottom entering configurations length adjustments to the bot tom damper shaft may need to be completed prior to fi...

Страница 9: ...lter access panel See Fig 14 Fig 14 Optional Mixing Box 3 76 A C 2 4 61 4 102 H 2 4 61 3 76 1 25 2 51 2 51 W B Top Views BTM Rear Inlet 42DH Top Rear Inlet 42DH Top Front Inlet 42DV W 4 102 2 4 61 C 1...

Страница 10: ...rence at any point during travel Tighten rod clamp of swivel onto each damper rod Fig 17 Install Damper 7 Confirm correct operation of dampers Adjust as needed Tighten remaining fasteners Step 3 Conne...

Страница 11: ...5 1 2 0 625 1 2 0 625 16 22 1 1 125 1 1 125 1 1 125 1 1 125 1 2 0 625 30 1 1 2 1 625 1 1 2 1 625 1 1 2 1 625 1 1 2 1 625 1 2 1 625 HR CR CS HS Return Air Drain LH TELL TALE RH TELL TALE LEGEND 2 Verti...

Страница 12: ...16 1 LH 10 5 8 7 3 4 12 9 5 8 7 RH 13 3 8 9 5 8 7 2 12 7 16 3 8 13 5 8 10 3 8 7 9 16 6 7 3 4 15 5 8 8 1 8 1 LH 10 5 8 7 3 4 12 11 13 16 9 3 16 RH 13 3 8 11 13 16 9 3 16 2 12 7 16 3 8 13 5 8 12 1 2 9 3...

Страница 13: ...06 12 0 375 1 4 3 4 0 875 1 2 0 625 1 2 0 625 16 22 0 375 1 4 1 1 125 1 1 125 1 2 0 625 30 0 625 1 2 1 1 2 1 625 1 1 2 1 625 1 1 2 1 625 LEGEND HR HS SL LL Return Air Drain LH TELL TALE RH TELL TALE N...

Страница 14: ...1 2 2 3 4 6 1 4 5 1 8 17 1 8 3 3 4 2 5 8 2 5 8 6 2 4 4 7 8 3 1 4 3 1 4 6 16 4 6 1 2 7 1 8 12 1 2 2 3 4 6 1 4 5 1 8 17 1 8 3 3 4 2 5 8 2 5 8 6 2 4 6 3 8 10 13 5 8 6 6 8 4 1 8 2 5 8 6 20 22 4 6 1 2 7 1...

Страница 15: ...WIDTH HEIGHT SUPPLY DUCT RETURN DUCT MOUNTING HOLES AUX CTRL BOX M A B C D E F G J K L 06 9 x 6 36 28 19 3 4 8 7 8 10 7 8 13 3 4 2 1 4 24 1 4 14 2 3 4 27 1 4 35 1 4 5 3 4 2 08 9 x 6 36 28 19 3 4 8 7...

Страница 16: ...tors and or cabinet lighting option not required with low voltage 0 10v controls UNIT SIZE FAN SIZE DEPTH UNIT DEPTH WIDTH HEIGHT SUPPLY DUCT RETURN DUCT MIX BOX MOUNTING HOLES AUX CTRL BOX M A B C D...

Страница 17: ...g UNIT SIZE FAN SIZE DEPTH WIDTH HEIGHT SUPPLY DUCT FLANGE RETURN DUCT FLANGE AUX CTRL BOX UNIT SIDE TO DUCT FLANGE UNIT BOTTOM TO DUCT FLANGE A B C E F L M N 06 9 x 6 20 28 36 1 2 8 7 8 10 7 8 15 1 8...

Страница 18: ...field installation of actuator Kit consists of 2 crank arms 2 swivels and either a 25 in sizes 06 16 or 34 in sizes 20 30 length of 5 16 in rod 10 Add 2 in if using a prefilter or 4 in filter UNIT SIZ...

Страница 19: ...ld wiring shall be made in compliance with all governing codes and ordinances Compliance with all codes is the responsibility of the installing contractor All components furnished for field installati...

Страница 20: ...sible before beginning any system balancing Cooling Heating System Prior to the water system start up and balancing flush the chilled hot water systems to clean out dirt and debris which may have coll...

Страница 21: ...tronically Commutated Motors ECM constant speed brushless DC which are easily adjustable in the field for desired performance Motors are pre programmed for constant speed mode 1 2 HP and 1 HP motors h...

Страница 22: ...low rates in a convenient place for future reference Before and during water system balancing conditions may exist due to incorrect system pressures which may result in noticeable water noise or undes...

Страница 23: ...air through the coil fins from the leaving air face This should again be followed by vacuuming Units equipped with regularly replaced air filters will require less frequent coil cleaning Electric Res...

Страница 24: ...ed main drain line by flow from tell tale connection Should algae and or bacteria growth become a concern con sult an air conditioning and refrigeration supply organization familiar with local conditi...

Страница 25: ...Detail Y Detail Y Filter Support Angle Bracket Filter Support Angle Bracket 1 Filter Slot 2 Filter Slot D See Detail Y See Detail X Detail X Detail Y Magnets C 2 Filter 1 Filter 4 Filter B A D 2 Filt...

Страница 26: ...h Control Board Fig B No Electric Heat Three Phase Power with Control Board WARNING Wiring diagrams are provided as an example only ALWAYS refer to WIRING DIAGRAM attached to the unit WARNING Wiring d...

Страница 27: ...WIRING DIAGRAM EXAMPLES cont Fig C Single Element Heater Single Stage Heat Single Phase Power with Control Board WARNING Wiring diagrams are pro vided as an example only ALWAYS refer to WIRING DIAGRAM...

Страница 28: ...28 Fig D Two Element Heater Single Stage Heat Single Phase Power with Control Board WARNING Wiring diagrams are provided as an example only ALWAYS refer to WIRING DIAGRAM attached to the unit...

Страница 29: ...CAL WIRING DIAGRAM EXAMPLES cont Fig E Two Element Heater Two Stage Heat Single Phase Power with Control Board WARNING Wiring diagrams are provided as an example only ALWAYS refer to WIRING DIAGRAM at...

Страница 30: ...30 Fig F Three Element Heater Single Stage Heat Three Phase Power with Control Board WARNING Wiring diagrams are provided as an example only ALWAYS refer to WIRING DIAGRAM attached to the unit...

Страница 31: ...AL WIRING DIAGRAM EXAMPLES cont Fig G Six Element Heater Single Stage Heat Three Phase Power with Control Board WARNING Wiring diagrams are provided as an example only ALWAYS refer to WIRING DIAGRAM a...

Страница 32: ...32 Fig H Six Element Heater Two Stage Heat Three Phase Power with Control Board WARNING Wiring diagrams are provided as an example only ALWAYS refer to WIRING DIAGRAM attached to the unit...

Страница 33: ...L WIRING DIAGRAM EXAMPLES cont Fig I Nine Element Heater Single Stage Heat Three Phase Power with Control Board WARNING Wiring diagrams are provided as an example only ALWAYS refer to WIRING DIAGRAM a...

Страница 34: ...34 Fig J Nine Element Heater Two Stage Heat Three Phase Power with Control Board WARNING Wiring diagrams are provided as an example only ALWAYS refer to WIRING DIAGRAM attached to the unit...

Страница 35: ...Power with Control Board Fig L No Electric Heat Single Phase Power without Control Board WARNING Wiring diagrams are provided as an example only ALWAYS refer to WIRING DIAGRAM attached to the unit WA...

Страница 36: ...Board Fig N Single Element Heater Single Stage Heat Single Phase Power without Control Board WARNING Wiring diagrams are provided as an example only ALWAYS refer to WIRING DIAGRAM attached to the unit...

Страница 37: ...L WIRING DIAGRAM EXAMPLES cont Fig O Two Element Heater Two Stage Heat Single Phase Power without Control Board WARNING Wiring diagrams are provided as an example only ALWAYS refer to WIRING DIAGRAM a...

Страница 38: ...38 Fig P Three Element Heater Single Stage Heat Three Phase Power without Control Board WARNING Wiring diagrams are provided as an example only ALWAYS refer to WIRING DIAGRAM attached to the unit...

Страница 39: ...WIRING DIAGRAM EXAMPLES cont Fig Q Six Element Heater Single Stage Heat Three Phase Power without Control Board WARNING Wiring diagrams are provided as an example only ALWAYS refer to WIRING DIAGRAM...

Страница 40: ...40 Fig R Six Element Heater Two Stage Heat Three Phase Power without Control Board WARNING Wiring diagrams are provided as an example only ALWAYS refer to WIRING DIAGRAM attached to the unit...

Страница 41: ...WIRING DIAGRAM EXAMPLES cont Fig S Nine Element Heater Single Stage Heat Three Phase Power without Control Board WARNING Wiring diagrams are provided as an example only ALWAYS refer to WIRING DIAGRAM...

Страница 42: ...42 Fig T Nine Element Heater Two Stage Heat Three Phase Power without Control Board WARNING Wiring diagrams are provided as an example only ALWAYS refer to WIRING DIAGRAM attached to the unit...

Страница 43: ...WIRING DIAGRAM EXAMPLES cont Fig U Nine Element Heater Three Stage Heat Three Phase Power without Control Board WARNING Wiring diagrams are provided as an example only ALWAYS refer to WIRING DIAGRAM...

Страница 44: ......

Страница 45: ......

Страница 46: ...the right to discontinue or change at any time specifications or designs without notice and without incurring obligations Catalog No 04 53420022 01 Printed in U S A Form 42DHV 2SI Pg 46 1 22 Replaces...

Страница 47: ...Y N __________ ARE FURNISH ONLY PARTSACCOUNTED FOR Y N __________ IS THE UNIT ARRANGEMENT HAND CORRECT Y N __________ IS THE UNIT STRUCTURAL SUPPORT COMPLETEAND CORRECT Y N __________ Handling and Ins...

Страница 48: ...YTRAP IS DEEP ENOUGH __________ PRIME THE TRAPWITH WATER __________ CHECK SUPPLYAND RETURN WATER CONNECTIONS FOR LEAKS __________ FILL SYSTEMS WITH WATER REFRIGERANT __________ OPENAIR VENT ON TOP OF...

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