Carrier 48HG014-028 Installation Instructions Manual Download Page 4 | Manualshive

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ECONOMIZER
BOARD
MOUNTING

RELAYS

ECONOMIZER CONTROL BOARD

ECB-J8

ECB-J7

ECB-J2

ECB-J5

ECB-J4

CEPL130346-01

STATUS

LEN

J1

J2

J4

J3

J5

J6

J7

J8

J9

J10

CCN

YELLOW LED -
CCN (CARRIER COMFORT NETWORK)

INSTANCE JUMPER

RED LED-STATUS

MAIN BASE BOARD
PART NUMBER

GREEN LED-
LEN (LOCAL EQUIPTMENT NETWORK)

Fig. 8 — Economizer Board Mounting Location

Fig. 9 — Economizer Control Board

Fig. 10 — Main Base Board

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Summary of Contents for 48HG014-028

Page 1: ...nnel When working on air conditioning equipment observe precau tions in the literature tags and labels attached to the unit and other safety precautions that may apply Follow all safety codes Wear safety glasses and work gloves Use quenching cloth for unbrazing operations Have fire extinguishers available for all brazing operations INSTALLATION 1 Remove two manual dampers and one mist eliminating ...

Page 2: ...stic bushing being careful not to damage the wires Route the harness across the back of the top member of the frame as shown and attach to the frame us ing the wire ties provided See Fig 4 RETURN END OF UNIT FRAME SUPPORT BRACKETS SIDE PANEL REMOVED WIRE ROUTING PLASTIC BUSHING EXISTING WIRE TIES PLASTIC BUSHING Fig 1 Return End of Unit Fig 2 Frame Support Brackets Side Panel Removed Fig 3 Slide E...

Page 3: ... unit panels can now be replaced using the screws saved from the earlier steps Be sure to inspect all panel seals prior to re assembly and replace any seals that appear damaged 12 The control wiring can now be completed 13 Open the hinged control box compartment on the unit and remove the control box cover Save the screws for use lat er Be sure not to place sharp objects on any surface that could ...

Page 4: ...J4 CEPL130346 01 STATUS LEN J1 J2 J4 J3 J5 J6 J7 J8 J9 J10 CCN YELLOW LED CCN CARRIER COMFORT NETWORK INSTANCE JUMPER RED LED STATUS MAIN BASE BOARD PART NUMBER GREEN LED LEN LOCAL EQUIPTMENT NETWORK Fig 8 Economizer Board Mounting Location Fig 9 Economizer Control Board Fig 10 Main Base Board ...

Page 5: ...lug marked ECB J8 16 18 to the J8 connector on the Economizer Control Board plug J8 pins 16 through 18 Connect the plug marked ECB J7 to the J7 plug on the Economizer Control Board 20 Several wires will need to be connected to the BACK SIDE of the terminal strips TB4 and TB5 The wires are marked with the appropriate locations Connect the wires as marked to the back of the TB4 terminal strip locati...

Page 6: ...then Use the arrow keys to scroll down to the Economizer High Temperature Lockout setting ECL H and press twice Use the arrow keys to increase or decrease the economizer lockout temperature and press and then Use the arrow keys to scroll down to the Economizer Low Temperature Lock out setting ECL L and press twice Use the ar row keys to increase or decrease the economizer lockout temperature and p...

Page 7: ...connections Damper is jammed Identify the obstruction and safely remove Economizer operation is limited to minimum position Minimum position is set incorrectly Adjust minimum position setting Outdoor air temperature is above economizer high temperature lockout Adjust the high temperature lockout setting if it is incorrect otherwise economizer is operating correctly Outdoor air temperature is below...

Page 8: ...any time specifications or designs without notice and without incurring obligations PC 111 Catalog No 534 80034 Printed in U S A Form 48 50HG 5SI Pg 8 8 01A 6 01 Replaces New Copyright 2001 Carrier Corporation Book 1 1 4 4 Tab 1a 1b 6a 6b 3 2 3 3 3 4 3 5 3 6 3 7 ...

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