Instruction/ maintenance manual of the product R-410A Nordyne
Go to page of 20
Outdoor Heat Pump T w o Stage R-410A Split System User’ s Man ual / Installation Instructions Please read this inf or mation thoroughly and become f amiliar with the capabilities and use of y our appliance bef ore attempting to operate or maintain this unit.
2.
3 Safety Inf ormation ........................................ 6 Pressures Within the System ..................... 6 Labels, T ags, and Precautions .................... 6 Brazing Operations ..................................... 6 General Information .
4 ABOUT THE HEA T PUMP Y our heat pump is a unique, all weather comf or t- control appliance that will heat and cool your home year round and pro vide energy saving comf or t. It’ s an unknown f act that heat is always in the air , ev en when the outside temperature is below freezing.
5 SYSTEM MAINTENANCE CA UTION: Shut off all electrical power to the unit before perf orming any maintenance or service on the system. Failure to compl y may result in per sonal injury or death.
6 INST ALLER INFORMA TION SAFETY INFORMA TION IMPORT ANT : Saf ety markings are used frequently throughout this manual to designate a degree or le v el of seriousness and should not be ignored. W ARNING indicates a potentially hazardous situation that if not av oided, could result in personal injur y or death.
7 SITE PREP ARA TION Unpacking the Equipment Remov e the shipping car ton and User’ s Manual from the equipment. T ake care not to damage the tubing connections when removing the car ton. Inspect for Dama ge Inspect the equipment f or damage prior to installing the equipment at the job site.
8 • The maximum recommended interconnecting refrigerant line length is 75 f eet, and the vertical ele vation diff erence between the indoor and outdoor sections should not e xceed 20 f eet. • If precise f or ming of refrigerant lines is required, a copper tubing bender is recommended.
9 COPPER WIRE SIZE — A WG (1% V oltage Dr op) Supply Wire Length-Feet Supply Cir cuit Ampacity 200 150 100 50 6 8 10 14 15 46 8 1 2 2 0 46 8 1 0 2 5 44 6 1 0 3 0 34 6 8 3 5 34 6 8 4 0 23 4 6 4 5 23 4 6 5 0 23 4 6 5 5 12 3 4 6 0 Wire Size based on N.
10 again after the discharge pressure decreases to 460 psig. NO TE: When the switch opens and then closes, there will be a 3 min ute shor t cycling dela y bef ore the outdoor unit will energize .
11 FUNCTIONAL CHECK OUTS CA UTION: These units have a crankcase heater factory installed. W ait 24 hours prior to performing a function c heck out to allo w for heating of the compressor crankcase. Failure to compl y ma y result in damage and could cause premature failure of the system.
12 v erify system operation and compatibility with the heat pump . Ref er to the installation instructions f or this equipment and perf or m a functional check out in accordance with the manuf acturer’ s instructions. Indoor Blower 1. T urn the fan mode to ON.
13 • If the REMO VE FOR NO DELA Y jumper is installed, the compressor will energize immediately f ollowing a 30-second dela y . Note : If the Y2 ther mostat input is energized (2 - stage system), the second stage will tur n on. If the abov e steps will not initiate a defrost, replace the defrost board.
14 Cooling Charging Charts Figure 4. Charging Chart for 2 T on Units 250 275 300 325 350 375 400 425 450 475 70 75 80 85 90 95 100 105 110 115 120 125 Liquid T emperature (° F) Liquid Pressure (psig) Remov e refr igerant when abov e cur v e Add refrigerant when below curve Figure 5.
15 Cooling Charging Charts (continued) Figure 6. Charging Chart for 4 T on Units Li q uid T em p erature ( ° F ) Liquid Pressure (psig) 250 275 300 325 350 375 400 425 450 475 500 70 75 80 85 90 95 100 105 110 115 120 12 5 Remov e refr igerant when abov e cur v e Add refrigerant when below curve Figure 7.
16 Heating Charging Chart Figure 8. Heating Charging Chart Liquid T emperature (° F) Liquid Pressure (psig) 200 225 250 275 300 325 350 375 400 50 55 60 65 70 75 80 85 90 Remov e refr igerant when ab.
17 Status LED Status LED Description Status LED T r oubleshooting Information Green “PO WER” Module has power Supply v oltage is present at module ter minals Red “TRIP” Thermostat demand signa.
18 Status LED Status LED Description Status LED T r oubleshooting Information Y ellow “ALER T” Flash Code 3 Shor t Cycling / Compressor is running only briefl y • Ther mostat demand signal is i.
19 T able 5. Module Wiring T roub leshooting Miswired Module Indication Recommended T roubleshooting Action Green LED is not on, module does not pow er up • Deter mine if both R & C module ter minals are connected. • V er ify voltage is present at module’ s R & C ter minals.
INST ALLER: PLEASE LEA VE THESE INST ALLA TION INSTR UCTIONS WITH THE HOMEO WNER. 708868A (Replaces 7088680) Specifi cations and illustr ations subject to change without notice t incurring obligations.
An important point after buying a device Nordyne R-410A (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 R-410A 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 R-410A - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Nordyne R-410A you will learn all the available features of the product, as well as information on its operation. The information that you get Nordyne R-410A will certainly help you make a decision on the purchase.
If you already are a holder of Nordyne R-410A, 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 R-410A.
However, one of the most important roles played by the user manual is to help in solving problems with Nordyne R-410A. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Nordyne R-410A 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
