Instruction/ maintenance manual of the product 48ZT Carrier
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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 .
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.
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 Con.
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.
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 .
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.
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.
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 .
An important point after buying a device Carrier 48ZT (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Carrier 48ZT yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Carrier 48ZT - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Carrier 48ZT you will learn all the available features of the product, as well as information on its operation. The information that you get Carrier 48ZT will certainly help you make a decision on the purchase.
If you already are a holder of Carrier 48ZT, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Carrier 48ZT.
However, one of the most important roles played by the user manual is to help in solving problems with Carrier 48ZT. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Carrier 48ZT along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
