Instruction/ maintenance manual of the product T3BN Nordyne
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Outdoor Heat Pump User’ s Inf ormation and Installation Instructions T3BN Series High Effi ciency Commer cial Split System These instructions are pr imarily intended to assist qualifi ed individuals e xpe- rienced in the proper installation of heating and/or air conditioning appliances.
2 2. Set the ther mostat temper ature to the desired temperature le v el using the temperature selector . Please ref er to the separate detailed thermostat user’ s manual f or complete instructions regarding ther mostat prog ramming.
3 T O MAINT AIN Y OUR HEA T PUMP— CA UTION: Be certain the electrical power to the outdoor unit and the furnace/air handler is disconnected before doing the follo wing recommended maintenance.
4 Read Y our W arranty Please read the separate w arranty document completely . It contains v aluable inf ormation about your system. GENERAL INFORMA TION Read the f ollowing instructions completely before perf or ming the installation. Outdoor Unit Section — Each outdoor unit is shipped with a refrigerant holding charge.
5 The maximum recommended interconnecting refrigerant line length is 75 f eet, and the v er tical elev ation diff erence between the indoor and outdoor sections should not e xceed 20 f eet. Consult long line application guide for installations in e xcess of these limits.
6 Electrical P ower Wiring — Electr ical po wer wiring must comply with the current provisions of the “National Electrical Code” (ANSI/NFP A 70) and with applicable local codes ha ving jurisdiction.
7 GR W 2 CE O Y Thermostat R Air Handler Heat Pump OD Section T ypical Heat Pump with Standar d Air Handler O NO TE: Jumper between W2 and E is required when no OD T -Stat is used.
8 Indoor Blower — Set the thermostat function s witch to COOLING and the fan s witch to ON. V erify that the indoor blo wer is operating and that airfl ow is not restricted. Set the f an s witch back to A UT O . Low-Pressure Switc h — A low-pressure s witch is f actor y-installed (see attached).
9 2. Jumper the “T2”-”DFT” test pins. This will indicate to the board that the defrost T -stat is closed(if the compressor is running). Defrost T -stat is closed at 32° or below and is open at 68° or abov e. But it’ s state is unknown if the temper ature is between 32°F and 68°F .
10 Refrigerant Charging Charts 7.5 Ton HP TXV Charging Chart 150 175 200 225 250 275 300 325 350 375 400 75 80 85 90 95 100 105 110 115 120 125 130 135 Liquid Temperature (F) Liquid Pressure (psig) Ad.
11 Refrigerant Charging Charts 10 Ton HP TXV Charging Chart 150 175 200 225 250 275 300 325 350 375 400 75 80 85 90 95 100 105 110 115 120 125 130 135 Liquid Temperature (F) Liquid Pressure (psig) Add.
12 REFRIGERANT CHARGING CHAR T Heating Mode of Operation PR OCEDURE FOR CHARGING 10-T ON HEA T PUMP IN HEA TING MODE. 1. Ev acuate the refr igerant system. 2. Charge the system by w eighing in 30 lbs R-22 refrigerant. This is the recommended charge for 5/8 inch 15 f oot line set.
13 RELA Y 4 2 3 1 6 5 T1 T2 T3 CCH C S R T1 T2 C Y O W2 R DFT DF1 DF2 E DEFROST CONTROL BOARD CY O W 2 R E L3 L2 L1 GRD REV VA LVE DFT LOW PRESSURE SWITCH THREE PHASE FIELD SUPPL Y CAP ACITOR CONT ACT.
14 A CCESSORIES — Condensing Unit Low Ambient Kit 913549A- Maintains system pressures during low ambient conditions. PHYSICAL AND ELECTRICAL SPECIFICA TIONS / OUTDOOR UNITS 10.
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INST ALLER: PLEASE LEA VE THESE INST ALLA TION INSTRUCTIONS WITH THE HOMEO WNER ¢708538G¤ 708538A 708538A (replaces 7085380) Specifi cations and illustr ations subject to change without notice and without incurring obligations.
An important point after buying a device Nordyne T3BN (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Nordyne T3BN 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 Nordyne T3BN - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Nordyne T3BN you will learn all the available features of the product, as well as information on its operation. The information that you get Nordyne T3BN will certainly help you make a decision on the purchase.
If you already are a holder of Nordyne T3BN, 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 Nordyne T3BN.
However, one of the most important roles played by the user manual is to help in solving problems with Nordyne T3BN. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Nordyne T3BN 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
