Carrier DesertMaster 50TJM Скачать руководство пользователя страница 9

 

 

 
 

Table – 2 Unit Weights and Dimensions 

NOTES: 

1. Remove boards at ends of unit and runners prior to rigging. 
2. Rig by inserting hooks into unit base rails as shown. Use bumper boards for spreader bars. 

 
 
 
 
 
 
 
 
 

 

2.4 – Positioning and Clearance. 

Before positioning the unit, check the following: 

 

The permitted loading at the site is adequate or that appropriate strengthening measures have been taken. 

 

The unit is installed level on an even surface (maximum tolerance is 5 mm in both axes). 

 

Ensure access to the components (see “Unit Dimensional Drawings” Fig 1 & 2 & “Clearance Diagram” Fig 3). 

 

The number of support points is adequate and that they are in the right places. 

 

Although the unit is weatherproof guard against water from higher level runoff and overhangs. 

Unit may be installed directly on wood flooring or on approved roof - covering material when roof curb is used. Do not 
install unit in an indoor location. Do not locate air inlets near exhaust vents or sources of contaminated air. 

2.5 – Field Fabricate Ductwork 

Secure all ducts to building structure. Use flexible duct connectors between unit and ducts as required 

(a space for 2.5 

to 3ft is required in case of repairing or replacing the blower wheel).

 Insulate and weatherproof all external ductwork, 

joints, and roof openings with counter flashing and mastic in accordance with applicable codes. Ducts passing through 
an unconditioned space must be insulated and covered with a vapor barrier. 

The 50TJM units with electric heat require a 2-in.clearance for the first 24-in. of ductwork. Outlet grilles must not lie 
directly below unit discharge. 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2.6 – Make Unit Duct Connections

 

Unit is shipped for side duct connections. Ductwork openings are shown in Fig. 1 and Fig. 2. 

 

UNIT 

SHIPPING DIMENSIONS 

(mm) 

SHIPPING 

WEIGHT 

UNIT DIMENSIONS (mm) 

UNIT WEIGHT 

LENGTH 

WIDTH 

DEPTH 

GROSS (Kg) 

LENGTH 

WIDTH 

DEPTH 

NET(Kg) 

50TJM - 18 

2440 

2235 

1375 

925 

2440 

2182 

1348 

860 

50TJM - 24 

2440 

2235 

1375 

945 

2440 

2182 

1348 

880 

50TJM - 28 

3200 

2485 

1400 

1190 

3200 

2432 

1374 

1125 

50TJM - 34 

3200 

2485 

1400 

1215 

3200 

2432 

1374 

1150 

 

NOTE

 

IMPORTANT

 

A 90-degree elbow must be provided in drain hole and must be removed in ductwork to comply with UL 
(Underwriters’ Laboratories) codes for use with electric heat.

 

 

 

NOTE

 

IMPORTANT

 

All units are internally isolated against vibration. 
If extra isolation required, please see “Unit 
Dimensional Drawing” Fig - 1 and Fig - 2 for 
corner weights. 

 

 

UNIT DAMAGE HAZARD

 

Failure to follow this caution may result in 
equipment damage. 
All panels must be in place when rigging. 

 
 

 

CAUTION

 

Page 9

Содержание DesertMaster 50TJM

Страница 1: ...amiliarized with all steps and to identify if any additional reference materials as required The 50TJM units are single side discharge rooftop cooling unit utilizing electric heat as an option Units a...

Страница 2: ...l Wiring Schematic 13 14 3 0 START UP INSTRUCTIONS 15 3 1 Unit Preparation 15 3 2 Internal Wiring 15 3 3 Compressor Mounting 15 3 4 Refrigerant Service Ports 15 3 5 Compressor Rotation 15 3 6 Evaporat...

Страница 3: ...d to highlight suggestions which will result in enhanced installation reliability or operation 1 2 Installation Safety Considerations After the unit has been received and when it is ready to be instal...

Страница 4: ...nal unit disposal Wear safety glasses and gloves when handling refrigerants Keep torches and other ignition sources away from refrigerants and oils NOTE IMPORTANT Before performing service or maintena...

Страница 5: ...Diameter mm 100 28 132 38 Motor Pulley Pitch Diameter Min Max in 4 3 5 6 Fan RPM Range RPM 1030 745 1029 740 Fan Pulley Pitch Diameter in 8 4 Belt Quantity Type 1 BX71 Pulley Center To Center Distanc...

Страница 6: ...porator and condenser coil plate fins 5 With the exception of clearance for the condenser coil and the damper power exhaust as stated in Note no 6 a removal fence or barricade requires no clearance TO...

Страница 7: ...from the top TOP 1829mm to assure proper condenser fan operation SIDE 1219mm for Compressor Filter and Control boxes access Local codes or jurisdiction may prevail 5 With the exception of clearance fo...

Страница 8: ...m clearance REAR 2134mm for coil removal This dimension can be reduced to 1219mm if conditions permit coil removal from the top TOP 1829mm to assure proper condenser fan operation SIDE 1219mm for Comp...

Страница 9: ...ing or replacing the blower wheel Insulate and weatherproof all external ductwork joints and roof openings with counter flashing and mastic in accordance with applicable codes Ducts passing through an...

Страница 10: ...single leads of no 18 AWG American Wire Gage colored wire from sub base terminals through conduit in unit to low voltage connection Settings may be changed slightly to provide a greater degree of com...

Страница 11: ...d and Notes for Electrical Data Table HACR Heating Air Conditioning and Refrigeration AB 392v BC 404v AC 395v 1191 3 AB 397 392 5v BC 404 397 7v AC 457 397 2v 7 397 MCA MOCP 18 50TJM Size 18 34 Compre...

Страница 12: ...ion Factors table below to determine heater capacity for your particular voltage 40 40 50TJ601162 50TJ600730 Duct heater assembly 50TJM 18 480 V Heater capacity kW is based on heater voltage of 380v o...

Страница 13: ...Page 13 Fig 6...

Страница 14: ...Page 14 Fig 7...

Страница 15: ...the suction pressure does not drop and the discharge pressure does not rise to normal levels 1 Note that the evaporator fan is probably also rotating in the wrong direction 2 Turn off power to the uni...

Страница 16: ...IL Clean condenser coil annually and as required by location and outdoor air conditions Inspect coil monthly clean as required CONDENSATE DRAIN Check and clean each year at start of cooling season FIL...

Страница 17: ...cement 1 Remove supply air section panel The bolts holding the flexible connection to the panel should be removed 2 Remove the Control Side panel 3 Remove the Belt refer to the previous section for Be...

Страница 18: ...nt until conditions of the chart are met Note that charging chart is different from those normally used An accurate pressure gage and temperature sensing device is required Charging is accomplished by...

Страница 19: ...and bottom of the evaporator coil It detects frost build up and turns off the compressor allowing the coil to clear Once the frost has melted the compressor can be reenergized 4 9 Control Circuit 24...

Страница 20: ...51 4500 875 2 29 2 69 924 2 55 3 00 971 2 82 3 31 1018 3 09 3 64 1062 3 38 3 97 5000 891 2 66 3 12 939 2 94 3 45 986 3 22 3 79 1030 3 51 4 13 1073 3 81 4 48 5500 909 3 07 3 60 955 3 36 3 95 998 3 65 4...

Страница 21: ...8 4 72 6000 893 3 25 3 86 938 3 54 4 20 980 3 84 4 56 1023 4 15 4 93 1064 4 47 5 31 6500 913 3 73 4 43 956 4 04 4 80 998 4 36 5 17 1038 4 68 5 56 1077 5 01 5 95 7000 936 4 28 5 08 976 4 60 5 46 1016 4...

Страница 22: ...BHP 5000 801 2 22 2 64 849 2 51 2 98 898 2 83 3 35 944 3 16 3 75 989 3 51 4 17 5500 813 2 50 2 97 859 2 80 3 32 904 3 12 3 70 948 3 45 4 10 990 3 79 4 50 6000 827 2 83 3 35 870 3 12 3 70 913 3 44 4 09...

Страница 23: ...6 24 7500 887 4 27 5 12 924 4 61 5 53 961 4 96 5 95 996 5 32 6 38 1032 5 70 6 84 8000 908 4 80 5 76 944 5 15 6 18 978 5 51 6 61 1012 5 88 7 06 1046 6 26 7 52 8500 930 5 38 6 46 964 5 74 6 89 997 6 11...

Страница 24: ...e Add charge if above upper curve 40 50 60 70 80 90 100 110 120 130 140 150 200 250 300 350 400 450 500 550 600 Liquid Temperature at Valve F Liquid Pressure PSIG CHARGING CHART 50TJM 18 Both Circuits...

Страница 25: ...curve Add charge if above upper curve 40 50 60 70 80 90 100 110 120 130 140 150 200 250 300 350 400 450 500 550 600 Liquid Temperature at Valve F Liquid Pressure PSIG CHARGING CHART 50TJM 34 Both Circ...

Страница 26: ...ak repair and recharge Air in system Recover refrigerant evacuate system and recharge Condenser coil dirty or restricted Clean coil or remove restriction Dirty drier filter Replace filter Dirty conden...

Страница 27: ...10 SEALED ALL POWER AND CONTROL WIRES ENTRY INTO THE UNIT AND INSIDE THE BOX L3 L1 L3 L3 START UP CHECKLIST Remove and Store in Job File II PRE START UP Insert checkmark in box as each item is complet...

Страница 28: ...serves the rights to discontinue or change at any time specifications or designs without notice and without incurring obligations Supersedes Version 50TJM IOM05 Version 50TJM IOM06 Effective Date 22 0...

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