Carrier 48ZT manual

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- informations concerning technical data of Carrier 48ZT
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- safety signs and mark certificates which confirm compatibility with appropriate standards

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Table of contents for the manual

  • Page 1

    Manufacturer reserves the right to disco ntinue, or change at any time, specifications or de signs without notice and without inc urring obligations. Catalog No . 04-53480045-01 Printed in U. S.A. Form 48Z-5SO Pg 1 7-07 Replaces: 48Z-3SO Book 1 Ta b 1 a User’ s Inf or mation Man ual NO TE T O INST ALLER: This manual should be left with the equipm[...]

  • Page 2

    2 10. Using the scrolling marquee, enable the unit to run using the following procedure: a. Push the key unit a blank display screen is shown. b. Push the key until the SER VICE TEST LED is lit. c. Push the key . The display will show STOP . d. Pu sh the key again. The NO/ YES display will flash. e. Push the or key to toggle the d isplay to NO and [...]

  • Page 3

    3 STEP 1 Fig. 2 — To Light Unit STEP 5 STEP 4 STEP 3 STEP 2 STEP 7 STEP 6 STEP 10 STEP 8 LOCK-OUT TA G ON OFF MAIN STEP 9 Run Status Service T est T emperature Pressures Setpoints Inputs Outputs Configuration Time Clock Operating Modes Alarms Alarm Status ENTER MODE ESCAPE Run Status Service T est T emperature Pressures Setpoints Inputs Outputs C[...]

  • Page 4

    4 T O SHUT UNIT OFF See Fig. 1 for location of gas valve(s). Refer to Fig. 3 while proceeding with the following steps. 1. T urn off the unit demand for cooling or heating by using the scrolling marquee. The scrolling marquee is located in the control box at the compressor end of the unit. a. Push the key unit a blank display screen is shown. b. Pu[...]

  • Page 5

    5 When replacing your unit filters, always use the same size and type of filter that was originally supplied by the installer . Units with outdoor air capability have a cleanable filter for the outdoor air . This filter should be checked annually and cleaned as necessary . Remove by removing screws in outdoor- air filter retainer and sliding filter[...]

  • Page 6

    6 FIL TER ACCESS CONTROL BOX FLUE OUTLETS (F AR SIDE) ACCESS DOOR (BOTH SIDES) ACCESS DOOR (F AR SIDE ONL Y) ACCESS DOOR (NEAR SIDE ONL Y) ACCESS DOOR (F AR SIDE ONL Y) POWER EXHAUST VFD (NEAR SIDE) POWER EXHAUST CONTROL BOX (F AR SIDE) ACCESS DOOR (BOTH SIDES) POWER EXHAUST ACCESS DOOR (BOTH SIDES) GAS SECTION ACCESS DOOR (F AR SIDE) Fig. 4 — Do[...]

  • Page 7

    7 Fan a nd Belts — Periodically check the condition of fan wheels and housings and belt tens ion. When service is neces- sary , call your dealer . Evaporator -Fan Motor , Condenser -F an Motor and Comb ustion-F an Motor — Lubrication is not recommended. Bearings will not require lubrication for at least 5 years of normal operation. After 5 year[...]

  • Page 8

    Manufacturer reserves the right to disco ntinue, or change at any time, specificatio ns or designs without notice and without inc urring obligations. Catalog No . 04-53480045-01 Printed in U. S.A. Form 48Z-5SO Pg 8 7-07 Replaces: 48Z-3SO Book 1 Ta b 1 a Copy right 2007 Carrier Cor poration REGULAR DEALER MAINTENANCE In addition to the type of routi[...]