Allied Air Enterprises 4AC16LT manuale d’uso

506467-01 Issue 1008 Page 1 The equipment covered in this manual is to be installed by trained and experienced service and installation technicians. Improper installation, modification, service, or use can cause electrical shock, fire, explosion, or other conditions which may cause personal injury , death, or property damage. Use appropriate safety[...]

506467-01 Issue 1008 INST ALLA TION Inspection of Shipment Upon receipt of equipment, carefully inspect it for possible shipping damage. If damage is found, it should be noted on the carrier ’s freight bill. T ake special care to examine the unit inside the carton if the carton is damaged. Any concealed damage discovered should be reported to the[...]

506467-01 Issue 1008 Electrical Wiring All field wiring must be done in accordance with the National Electrical Code (NEC) recommendations, Canadian Electrical Code (CEC) and CSA S tandards, or local codes, where applicable. Page 3 Unit must be grounded in accordance with national and local codes. Failure to ground unit properly can result in perso[...]

506467-01 Issue 1008 Placement Be aware that some localities are adopting sound ordinances based on how noisy the unit is at the neighbor ’ s home, not at the original installation. Install the unit as far as possible from the property line. When possible, do not install the unit directly outside a bedroom window . Glass has a verry high level of[...]

5 06 467 -01 Issue 1008 Page 5 Out side Unit Placement and Inst allation Figure 4 Install unit aw ay from windows T wo 90° elbows installed in lineset will reduce lineset vibration copper-to-brass or copper-to-steel brazing) which are rated for use with R410A refrigerant. 4. Remov e the Schrader core assemblies bef ore brazing to protect them from[...]

506467-01 Issue 1008 Page 6 Figure 6 Refrigerant Line Set s: T ransition from V ertical to Horizontal Anchored Heavy Nylon Wire Tie W all Stud Metal Slee ve V apor Line Wrapped in Armaflex – Liquid Line W all Stud A utomotive Muffler-T ype Hanger Strap Liquid Line to V apor Line Metal Slee ve V apor Line Wrapped in Armaflex – Liquid Line Strap [...]

5 06 467 -01 Issue 1008 Page 7 Flushing Existing Line Set and Indoor Coil This procedure should not be performed on systems which contain cont aminant s, such as compressor burn out. Flushing Procedure IMPORT ANT : The line set and/or indoor coil must be flushed with at least the same amount of refrigerant that previously charged the system. Check [...]

506467-01 Issue 1008 (It may be necessary to bypass the low pressure switches to ensure complete refrigerant evacuation.) When the low side system pressures reach 0 psig, close the suction line valve. Disconnect all power to the existing outdoor unit. Refer to the gauges af ter shutdown to confirm that the valves are not allowing refrigerant to flo[...]

506467-01 Issue 1008 Manifold Gauge Set Manifold guage sets used with systems charged with R410A refrigerant must be capable of handling the higher system operating pressures. The gauges should be rated for use with pressures 1 - 800 on the high side and a low side of 30” vacuum to 250 psi with dampened speed to 500 p si. Gauge hoses must be rate[...]

506467-01 Issue 1008 Page 10 Leak T esting After the line set has been connected to the indoor and outdoor units, the line set connections and indoor unit must be checked for leaks. Figure 1 1 2. With both manifold valves closed, connect the cylin- der of R410A refrigerant. Open the valve on the R410A cylinder (vapor only). 3. Open the high pressur[...]

5 06 467 -01 Issue 1008 Page 11 of 22 of 22 2. Connect micron gauge. 3. Connect the vacuum pump (with vacuum gauge) to the center port of the manifold gauge set. 4. Open both manifold valves and st art vacuum pump. 5. Evacuate the line set and indoor unit to a minimum of 500 microns or lower . During the early stages of evacuation, it is desirable [...]

506467-01 Issue 1008 Page 12 If the system is void of refrigerant, clean the system using the procedure described below . 1. Use dry nitrogen to pressurize the system and check for leaks. Repair leaks, if possible. 2. Evacuate the system to remove as much of the moisture as possible. 3. Use dry nitrogen to break the vacuum. 4. Evacuate the system a[...]

5 06 467 -01 Issue 1008 Page 13 2. Close manifold gauge set valves. Connect the center manifold hose to an upright cylinder of R410A. 3. If room temperature is below 70°F , set the room thermo- stat to call for heat. This will create the necessary load for properly charging the system in the cooling cycle. 4. Use a digit al thermometer to record t[...]

506467-01 Issue 1008 Page 1 4 6. Compare the approach value with those shown in T able 7. If the values do not agree with those provided in T able 7, add refrigerant to lower the approach temperature or recover refrigerant from the system to increase the approach temperature. Check Charge Using Normal Operating Pressures Use T able 8 to perform mai[...]

506467-01 Issue 1008 Page 15 T able 8 Normal Operating Pressures L = Liquid S = Suction V alues provided above are typical pressures. Indoor unit matchup, indoor air quality , and indoor load will cause pressures to vary .[...]

506467-01 Issue 1008 Page 16 OPERA TION Outdoor unit and indoor blower cycle on demand from the room thermostat. When the thermost at blower switch is moved to the ON position, the indoor blower operates continuously . System Diagnostic Module 4 AC 16L T units cont ain a diagnostic module for trouble- shooting air conditioning system failures. By m[...]

5 06 467 -01 Issue 1008 Page 17 Flash Codes T able 9 D E L s u t a t S n o i t p i r c s e D t l u a F n o i t a m r o f n I g n i t o o h s e l b u o r T R E W O P ) n e e r G ( r e w o p s a h e l u d o Ms l a n i m r e t e l u d o m t a t n e s e r p s i e g a t l o v y l p p u S P I R T ) d e R ( d n a m e d t a t s o m r e h T , t n e s e r p [...]

506467-01 Issue 1008 Page 18 Flash Codes (cont.) T able 10 D E L s u t a t S n o i t p i r c s e D t l u a F n o i t a m r o f n I g n i t o o h s e l b u o r T T R E L A ) w o l l e Y ( h s a l F 3 e d o C g n i l c y C t r o h S s i r o s s e r p m o C g n i n n u r y l f e i r b y l n o t n e t t i m r e t n i s i l a n g i s d n a m e d t a t s[...]

5 06 467 -01 Issue 1008 Page 19 T able 1 1 Miswired Module T roubleshooting n o i t a c i d n I e l u d o M d e r i w s i M n o i t c A g n i t o o h s e l b u o r T d e d n e m m o c e R , n o t o n s i D E L n e e r G . p u r e w o p t o n s e o d e l u d o m t n e s e r p s i e g a t l o v y f i r e V . d e t c e n n o c e r a s l a n i m r e t [...]

506467-01 Issue 1008 Page 20 4. Check all wiring for loose connections. 5. Check for correct volt age at unit (with unit operating). 6. Check amp-draw on blower motor . Unit nameplate _________ Actual _________ Maintenance and service must be performed by a quali- fied installer or service agency . At the beginning of each cooling season, the syste[...]

5 06 467 -01 Issue 1008 Page 21 St art-Up and Performance Checklist Job Name _______________________________ Job No. ________________ Date ______________ Job Location _____________________________ City ___________________ S tate ______________ Installer _________________________________ City ___________________ S tate ______________ Unit Model No. [...]

506467-01 Issue 1008 Page 22 Figure 13 Wiring Diagram P/N 48440-002 OUTDOOR FA N FCH R S C H C F C EQUIPMENT GROUND HR1 L2 208-230/60/1 L1 K1-1 BLACK YELLOW RED RED C12 BLACK ORANGE B4 PURPLE K1 S4 S24 Y1 C S4 HIGH PRESSURE SWITCH S24 LOSS OF CHARGE SWITCH B1 GROUND LUG GROUND L2 L1 208-230/60/1 C Y1 T O 24 V A C POWER SOURCE 20 V A MINIMUM NEC CLA[...]