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Carrier COBRA 48HJ004-014, Installation And Service

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Carrier COBRA 48HJ004-014 Installation And Service Download Page 27

27

LEGEND

Fig. 7 — Power Wiring Connections

C

—

Contactor

COMP —

Compressor

IFC

—

Indoor-Fan Contactor

NEC

—

National Electrical Code

TB

—

Terminal Block

208/230-1-60

208/230-3-60

460-3-60

(SIZE 007 ONLY)

575-3-60

(SIZE 007 ONLY)

208/230-3-60

575-3-60, 460-3-60

(SIZES 004-006)

208/230-3-60 AND 460-3-60

(SIZES 008-014)

575-3-60

(SIZES 008-014)

Summary of Contents for COBRA 48HJ004-014

Page 1: ...in the literature tags and labels attached to the unit and other safety precautions that apply Verify that the power source supplied to the unit matches the voltages and amperages listed on the unit...

Page 2: ...ry section Assemble and install accessory roof curb in accordance with instructions shipped with curb See Fig 2A 4 Install insu lation cant strips roofing felt and counter flashing as shown Ductwork m...

Page 3: ...nnect duct work to unit Insulate and weatherproof all external ductwork joints and roof openings with counter flashing and mastic in accordance with applicable codes See Fig 5A and 5B for duct dimensi...

Page 4: ...de 7 Direction of airflow 8 Connector packages CRBTMPWR001A00 and 002A00 are for thru the curb type gas Packages CRBTMPWR003A00 and 004A00 are for thru the bottom type gas connections CONNECTOR PKG AC...

Page 5: ...ductwork to curb flanges of duct rest on curb 6 Service clearance 4 ft on each side 7 Direction of airflow 8 Connector packages CRBTMPWR001A00 and 2A00 are for thru the curb gas type Packages CRBTMPWR...

Page 6: ...f and overhangs Flue vent discharge must have a minimum horizontal clear ance of 4 ft from electric and gas meters gas regulators and gas relief equipment Minimum distance between unit and other elect...

Page 7: ...7 RIGHT SIDE REAR RIGHT SIDE FRONT LEFT SIDE FRONT LEFT SIDE Fig 5A Base Unit Dimensions COBRA Energy Recovery Unit 48 50HJ004 007 with 62AQ060 100...

Page 8: ...8 Fig 5A Base Unit Dimensions COBRA Energy Recovery Unit 48 50HJ004 007 with 62AQ060 100 cont...

Page 9: ...9 Fig 5B Base Unit Dimensions COBRA Energy Recovery Unit 48 50HJ008 014 with 62AQ200 300...

Page 10: ...10 Fig 5B Base Unit Dimensions COBRA Energy Recovery Unit 48 50HJ008 014 with 62AQ200 300 cont...

Page 11: ...jury if an electrical fault should occur This ground may consist of electrical wire connected to unit ground lug in control com partment or conduit approved for electrical ground when installed in acc...

Page 12: ...se average temperature in accordance with thermidistat installation instruc tions on page 30 Connect thermidistat wires to terminal board Route thermidistat cable or equivalent single leads of col ore...

Page 13: ...FUSE OR HACR BKR FLA LRA 48HJ004 208 230 1 60 STD NO 9 2 34 8 34 8 40 40 35 35 135 135 STD YES 9 2 40 8 40 8 45 45 41 41 140 140 208 230 3 60 STD NO 9 2 27 7 27 7 35 35 29 29 124 124 STD YES 9 2 33 7...

Page 14: ...7 20 14 63 007 10 6 20 9 25 15 63 008 13 8 25 0 25 24 63 009 16 8 28 7 30 27 63 STD YES 9 2 NONE 16 3 20 20 67 006 7 2 18 8 25 20 68 007 10 6 23 0 25 20 68 008 13 8 27 1 30 29 68 009 16 8 30 8 35 32...

Page 15: ...1 4 36 3 64 3 69 7 70 70 005 62 67 255 255 002 002 46 9 54 2 83 7 92 1 90 100 005 80 88 255 255 003 003 62 8 72 5 103 5 115 0 110 125 005 98 109 255 255 004 004 75 8 87 5 119 8 133 8 125 150 005 113 1...

Page 16: ...NONE 48 0 48 0 60 60 48 48 239 239 002 13 6 15 6 48 0 48 0 60 60 48 48 239 239 004 21 9 25 3 48 9 52 5 60 60 48 51 239 239 005 33 4 38 5 63 2 69 1 70 70 003 61 66 239 239 004 004 43 8 50 5 76 3 84 1...

Page 17: ...6 25 24 95 48HJ005 208 230 1 60 STD NO 15 1 50 3 50 3 60 60 51 51 199 199 STD YES 15 1 56 3 56 3 70 70 57 57 204 204 208 230 3 60 STD NO 15 1 37 6 37 6 45 45 39 39 166 166 STD YES 15 1 43 6 43 6 50 5...

Page 18: ...77 008 13 8 28 4 35 0 025 27 80 009 16 8 32 1 35 0 025 31 83 STD YES 15 1 NONE 19 2 20 0 23 80 006 7 2 22 2 30 0 23 81 007 10 6 26 4 30 0 23 81 008 13 8 30 5 35 0 025 32 82 009 16 8 34 2 40 0 025 35 8...

Page 19: ...67 4 67 4 80 80 68 68 281 281 002 23 5 27 1 67 4 67 4 80 80 004 68 68 281 281 003 31 4 36 3 70 6 76 0 80 80 005 69 74 281 281 002 002 46 9 54 2 90 0 98 4 90 100 005 87 95 281 281 003 003 62 8 72 5 10...

Page 20: ...0 260 004 005 55 2 63 8 92 6 103 2 100 110 003 88 97 260 260 STD YES 15 1 NONE 53 9 53 9 60 60 55 55 265 265 002 13 6 15 6 53 9 53 9 60 60 55 55 265 265 004 21 9 25 3 55 7 59 3 70 70 002 55 58 265 265...

Page 21: ...21 9 63 2 70 69 391 HIGH STATIC YES 21 9 69 2 80 75 395 460 3 60 STD NO 10 2 29 4 35 32 184 STD YES 10 2 32 1 35 34 186 HIGH STATIC NO 10 2 30 8 35 34 197 HIGH STATIC YES 10 2 33 5 35 36 199 48HJ009...

Page 22: ...197 0 HIGH STATIC YES 10 2 NONE 33 5 35 0 36 0 198 0 016 16 7 39 6 45 0 006 39 0 199 0 013 19 8 43 5 45 0 006 42 0 199 0 014 33 4 60 5 70 0 008 58 0 199 0 015 39 7 68 3 70 0 008 65 0 199 0 014 016 50...

Page 23: ...5 150 165 493 493 010 012 104 2 120 3 175 7 165 1 200 200 168 186 493 493 460 3 60 STD NO 10 2 NONE 35 1 40 0 38 0 233 0 016 16 7 37 5 40 0 011 38 0 234 0 013 19 8 41 4 45 0 011 40 0 234 0 015 39 7 66...

Page 24: ...8 71 1 80 78 445 HIGH STATIC YES 29 8 77 1 80 84 449 460 3 60 STD NO 15 8 35 0 40 38 211 STD YES 15 8 37 7 40 41 213 HIGH STATIC NO 15 8 36 4 40 40 224 HIGH STATIC YES 15 8 39 1 45 43 226 48HJ009 208...

Page 25: ...24 0 HIGH STATIC YES 15 8 NONE 39 1 45 0 43 0 225 0 016 16 7 47 9 60 0 006 45 0 226 0 013 19 8 51 8 60 0 006 49 0 226 0 014 33 4 68 8 80 0 008 65 0 226 0 015 39 7 76 6 90 0 008 72 0 226 0 014 016 50 2...

Page 26: ...200 159 174 547 547 010 012 104 2 120 3 184 2 173 6 200 200 177 195 547 547 460 3 60 STD NO 15 8 NONE 40 7 45 0 44 0 260 0 016 16 7 45 8 60 0 011 44 0 261 0 013 19 8 49 7 60 0 011 47 0 261 0 014 33 4...

Page 27: ...mpressor IFC Indoor Fan Contactor NEC National Electrical Code TB Terminal Block 208 230 1 60 208 230 3 60 460 3 60 SIZE 007 ONLY 575 3 60 SIZE 007 ONLY 208 230 3 60 575 3 60 460 3 60 SIZES 004 006 20...

Page 28: ...ews along the top as shown in Fig 11 Step 10 Mount the Barometric Relief Damper The hood kit supplied with the energy recovery section is needed to complete this installation The exhaust air hood that...

Page 29: ...thermostat set at 55 F which locks out mechanical cooling on the RTU rooftop unit and the energy recovery section compressor If this feature is not desirable the rooftop unit s compressor can be allow...

Page 30: ...unted Close to a window on an outside wall or next to a door leading to the outside Exposed to direct light and heat from a lamp sun fire place or other temperature radiating object that may cause a f...

Page 31: ...t Option 21 Keyboard lock TO ENTER CONFIGURATION MODE Press and hold FAN button for approximately 10 seconds until COOL set point display indicates a flashing 01 The Light Commercial Thermidistat is n...

Page 32: ...Heat Set Point This selection deter mines the heating set point 40 to 90 minus deadband F when the HOLIDAY function is active TO SELECT 1 Enter Configuration mode Use up and down buttons to make smal...

Page 33: ...eypad will return to lock once the keypad is idle for a 2 minute period or immedi ately if after exiting the Configuration mode 4 Press SET TIME TEMP button again to flash upper small display for sele...

Page 34: ...e and humidity pro tection for the building in all seasons but not comfort Holiday Set Points The settings for HEAT COOL and DEHUM should have been done in the Configuration mode Options 9 10 and 11 O...

Page 35: ...nections for proper locations Ensure connections are tight Cooling Set Light Commercial Thermidistat mode selec tion to Cooling and fan mode to Auto Ensure thermostat has been adjusted to a setting b...

Page 36: ...R MIXED AIR CONDENSER COMPRESSOR E V A P O R A T O R EVAPORATOR ROOFTOP UNIT ROOF LINE OUTSIDE AIR EXHAUST AIR ENERGY RECOVERY SECTION Fig 17 Unit Operation Flow Diagram Fig 18 Fuse Box 48HJ012 014 20...

Page 37: ...0 Indoor Temperature Below 2nd Stage Set Point Off Off Off On cyc On 100 OCCUPIED COOLING ER Comp ER Fans RT Comp 1 RT Comp 2 RT Fan RT Heat Indoor Temperature Above 2nd Stage Set Point Humidity Low O...

Page 38: ...OCR Occupied Relay OF Outdoor Fan OFM Outdoor Fan Motor OLR Overload Relay PL Plug Assembly QT Quadruple Terminal RS Rollout Switch RVS Reversing Valve Solenoid SEN Sensor TB Terminal Block TRAN Trans...

Page 39: ...39 Fig 19 Typical Wiring Schematic Standard Controls cont...

Page 40: ...8 9 10 11 12 NK PNK VIO VIO GRA ORN PNK PNK ACCUSENSOR TR TR1 3 2 GRA GRA GRA GRA GRA SAT ORN BLK RED Space Temp Set Point Adjustment Indoor Air Quality Sensor OAT PNK VIO YEL YEL BLU BLU EconomiSer2...

Page 41: ...r Replace and determine cause Insufficient line voltage Determine cause and correct Blocked outdoor coil or dirty air filter Determine cause and correct Defective run start capacitor overload or start...

Page 42: ...at any time specifications or designs without notice and without incurring obligations PC 111 Catalog No 534 80122 Printed in U S A Form 48 50HJ 62AQ 2SIS Pg 42 9 02 Replaces 48 50HJ 62AQ 1SIS Copyrig...

Page 43: ...RUCTIONS 62AQ300 BELT DRIVE EXHAUST FAN AND SUPPLY FAN III START UP COMBINED ELECTRICAL COBRA ENERGY RECOVERY UNIT TEMPERATURES PRESSURES IN COOLING MODE ROOFTOP UNIT VERIFY REFRIGERANT CHARGE USING C...

Page 44: ...Book 1 1 4 4 Tab 1a 1b 6a 6b III START UP cont AIRFLOWS 62AQ SUPPLY AIR CFM MOTOR SPEED Circle One LOW MEDIUM HIGH DAMPER SETTING Circle One 30 45 60 90 EXHAUST AIR CFM MOTOR SPEED Circle One LOW MEDI...

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