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506254-01

Page 25 of  25

Issue  0912

Allied Air Enterprises, Inc. (“Allied”) provides its air conditioning and heating products with a standard five-year parts warranty.  This limited extended parts warranty is in addition to and
is intended to supplement Allied’s standard 5-year parts warranty.  As such, this limited extended warranty provides for a total of 10-years of limited warranty coverage (Standard 5-Year
Limited Parts Warranty plus Additional 5-Year Limited Extended Parts warranty).

EXTENDED COVERAGE -

PARTS/COMPRESSORS

The covered equipment and parts are warranted by Allied for a total of 

10 YEARS

 (standard 5 Year Limited Parts Warranty) from installation, except as provided below.

HEAT EXCHANGERS

The covered residential heating equipment’s heat exchanger is warranted by Allied for a Limited Lifetime (standard 20 Year Limited Warranty) from date of original installation, except
as provided below.

This warranty applies only to the original purchaser of the unit and cannot be transferred.  If during this period, a covered part fails because of a defect in materials or workmanship under
normal use and maintenance, Allied will provide a free replacement part to the purchaser through an Armstrong Air, Air Ease, Ducane or Concord dealer or other licensed service
contractor through an authorized Allied distributor.  The purchaser must pay shipping costs, including labor, of the warranty service.

EXCLUDED COMPONENTS -

The following components are expressly not covered by this limited warranty: cabinets, cabinet pieces, air filters, driers, refrigerant, refrigerant line sets, belts, wiring, fuses, oil nozzles,
and unit accessories, R-22 compressors, and any parts not affecting unit operation.

If this extended warranty does not apply, then parts are warranted for the standard warranty period of 

5 YEARS 

and all heat exchangers for 

20 YEARS

.  If the standard warranty

periods differ from the original warranty certificate, the periods stated on the original warranty certificate apply.

This limited extended warranty does not apply to, and no warranty is offered by Allied, on any unit ordered over the internet.  Proof of purchase may be required.

Any part replaced pursuant to this limited extended warranty is warranted only for the unexpired portion of the limited extended warranty term applying to the original part.  The
installation of replacement parts under the terms of this limited extended warranty does not extend the warranty period.

This limited extended warranty is an extension of Allied’s standard warranty. 

 ANY IMPLIED WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE

ON THIS PRODUCT IS LIMITED IN DURATION TO THE TERM OF THIS LIMITED EXTENDED WARRANTY.  

Some states and provinces do not allow limitations on how long an

implied warranty lasts, so the above limitation may not apply to you.

ALLIED SHALL IN NO EVENT BE LIABLE FOR INCIDENTAL OR CONSEQUENTIAL DAMAGES, INCLUDING BUT NOT LIMITED TO EXTRA UTILITY EXPENSES OR DAMAGES
TO PROPERTY.

 Some states and provinces do not allow the exclusion or limitation of incidental or consequential damages, so the above limitation or exclusion may not apply to you.

Allied is not responsible for:

1.  Damage or repairs required as a result of flood, fire, wind, lightening strike (to the home or unit), corrosive atmosphere, contact with corrosive material  (Chlorine, fluorine, salt,

recycled waste water, fertilizers or other damaging substances) or other conditions beyond the control of Allied;

2.  Use of parts, accessories, or refrigerant not compatible with the unit;
3.  Modification, change or alteration of the unit, except as expressly directed in writing by Allied;
4.  Improper use, accident, neglect or unreasonable use or operation of the unit, including operation of electrical equipment at voltages other than the  range specified on the unit

nameplate;

5.  Operation with system parts (indoor unit, outdoor unit and refrigerant control devices) which are not ARI matched or do not meet the specifications  recommended by Allied;
6.  Damage or repairs required as a consequence of faulty or installation or application;
7.  Normal maintenance as described in the installation and operating manual, such as cleaning of coils, filter cleaning and/or replacement and lubrication;

 and

8. Changes in the appearance or sound of the unit that do not affect its performance.

The parties intend this writing as a final expression of their agreement with respect to warranties.  Allied makes no other warranty beyond that which is expressly contained
in this writing.

Allied shall not be liable for any default or delay in performance under this warranty caused by any contingency beyond its control, including the unavailability of replacement parts.

This warranty gives you specific legal rights, and you may also have other rights that vary from state to state or province to province.

Steps for getting replacement parts under this limited extended warranty:
If you suspect a defect in your equipment, please contact the installer of the unit to obtain assistance.  If unsuccessful, please contact an Allied dealer or distributor in
your area.  If unable to obtain local assistance, refer to Allied’s website (

www.alliedair.com

) or contact Allied at 800-448-5872.

Excludes residents of states or provinces where registration requirements are prohibited, such as California and Quebec.  Residents of these states or provinces may either register as noted above or

provide proof of when the unit was purchased and installed, such as an original invoice from the contractor with the Owner’s name, address, purchase date, serial and model number.

LIMITED EXTENDED PARTS WARRANTY

1. The unit is an Armstrong Air, Air ease, Ducane, or Concord branded unit;
2. The unit is installed in a residential application, which is an owner-occupied single-family residence.  No commercial applications are allowed;
3.

 

The unit is properly registered at 

(www.alliedair.com) 

with Allied Air Enterprises within 60-days after the original date of installation or

occupancy.

1   

To register follow the directions and complete the on line warranty registration at 

(www.alliedair.com).  

For customer inquiries

contact Allied Air at 1-800-448-5872.

4. The unit is part of a complete ARI matched system and installed by a state certified or licensed contractor in accordance with the unit installation,
operation, and maintenance instructions provided with the unit.
5. Coils and air handlers are covered only when they are branded Armstrong Air, Air ease, Ducane, or Concord and are purchased and installed as a
system along with a qualifying unit.  (Third party coils are not covered).
6. Installation takes place on or after October 3, 2008.

 COVERAGE REQUIREMENTS -

Содержание 4SCU18LT Series

Страница 1: ...injury death or property damage Use appropriate safety gear including safety glasses and gloves when installing this equipment WARNING Installation and servicing of air conditioning equipment can be hazardous due to internal refrigerant pressure and live electrical components Only trained and qualified service personnel should install or service this equipment Installation and service performed by...

Страница 2: ...onnel and do not supersede any national or local codes in any way The installation must comply with all provincial state and local codes as well as the National Electrical Code U S or Canadian Electrical Code Canada Compliance should be determined prior to installation 4SCU18LT condensing units use R410Awhich is an ozone friendly HFC refrigerant The unit must be installed with a matching indoor co...

Страница 3: ...of 2 or 2 per 5 This will prevent ice from building up under the unit during a defrost cycle Refer to following roof mounting section for barrier construction if unit must face prevailing winter winds If unit coil cannot be mounted away from prevailing winter winds a wind barrier should be constructed See Figure 3 Size the barrier at least the same height and width as the outdoor unit Mount barrie...

Страница 4: ...s the diameters for line sets up to 100 although vertical lift applications and trapping requirements need to be reviewed with Technical Services for line sets over 50 Installing Refrigerant Line During the installation of an air conditioning system it is important to properly isolate the refrigerant line to prevent unnecessary vibration Line set contact with the structure wall ceiling or floor ma...

Страница 5: ...e the refrigerant piping This will help to prevent oxidation and the introduction of moisture into the system 3 Use silver alloy brazing rods 5 or 6 silver alloy for copper to copper brazing or 45 silver alloy for copper to brass or copper to steel brazing which are rated for use with R410A refrigerant 4 Remove the Schrader core assemblies before brazing to protect them from damage due to extreme ...

Страница 6: ...d separately and which is approved for use with R410A refrigerant in the liquid line at the indoor coil see Refrigerant Metering Device on page 9 When flushing existing line set and or indoor coil be sure to empty all existing traps Residual mineral oil can act as an insulator preventing proper heat transfer It can also clog thethermalexpansionvalve reducingsystemperformance and capacity Failure t...

Страница 7: ...Figure 7 Figure 8 506254 01 Page 7 of 25 Issue 0912 ...

Страница 8: ...em Refer to the gauges after shutdown to confirm that the entire system is completely void of refrigerant Disconnect the liquid and suction lines from the existing outdoor unit If the existing outdoor unit is equipped with manual shutoff valves AND new R 22 refrigerant will be used to flush the system Start the existing R 22 refrigerant system in cooling mode and close the liquid line valve Pump a...

Страница 9: ... on the inverted R 22 cylinder and the gauge set valves Pump the remaining refrigerant out of the recovery machine and turn the machine off 10 Use nitrogen to break the vacuum on the refrigerant lines and indoor coil before removing the recovery machine gauges and R 22 refrigerant drum Re install pressure tap valve cores into the 4SCU18LT unit s service valves 11 Install the fixed orifice or therm...

Страница 10: ...chrader Port 1 Remove the service port cap with an adjustable wrench 2 Connect gauge to the service port 3 When testing is completed replace service port cap Tighten finger tight then an additional 1 6 turn To Open Liquid or Suction Line Service Valve Remove stem cap with an adjustable wrench Use service wrench with a hex head extension to back the stem out counterclockwise as far as it will go Us...

Страница 11: ...l vary with lenths Check all joints for leaks Purge nitrogen and R410A mixture Correct any leaks and rechecks Evacuation Evacuating the system of noncondensables is critical for proper operation of the unit Noncondensables are defined as any gas that will not condense under temperatures and pressures present during operation of an air conditioning system Noncondensables and water vapor combine wit...

Страница 12: ...rogen cylinder with pressure regulator set to 150 psig and purge the hose Open the manifold gauge valves to break the vacuum in the line set and indoor unit Close the manifold gauge valves 7 Shut off the nitrogen cylinder and remove the manifold gauge hose from the cylinder Open the manifold gauge valves to release the nitrogen from the line set and indoor unit 8 Reconnect the manifold gauge to th...

Страница 13: ...s based on a matching indoor coil and outdoor coil with 15 line set For varying lengths of line set refer to Table 5 for refrigerant charge adjustment A blank space is provided on the unit rating plate to list the actual field charge Table 5 If the system is void of refrigerant clean the system using the procedure described below 1 Use dry nitrogen to pressurized the system and check for leaks Rep...

Страница 14: ...e to liquid line service valve 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 thermostat to call for heat This will create the necessary load for properly charging the system in the cooling cycle 4 Use a digital thermometer to record the outdoor ambient temperature 5 When the heating demand has bee...

Страница 15: ...ch temperature or recover refrigerant from the system to increase the approach temperature Check Charge Using Normal Operating Pressures Use Table 8 to perform maintenance checks Table 8 is not a procedure for charging the system Minor variations in these pressures may be due to differences in installations Significant deviations could mean that the system is not properly charged or that a problem...

Страница 16: ... 147 344 147 348 150 363 144 105 372 148 391 149 402 151 405 148 115 413 151 438 153 456 154 447 152 High Capacity 24 36 48 60 Outdoor Coil Entering Air Temp F L S L S L S L S 65 212 137 210 141 237 137 248 123 75 254 139 247 143 286 139 293 128 85 295 142 298 145 330 140 337 132 95 337 144 349 147 374 142 382 137 105 379 146 400 149 418 144 427 142 115 424 149 451 151 462 145 471 146 506254 01 Pa...

Страница 17: ...r of times consecutively pause and then repeat the process To identify a flash code number count the number of consecutive flashes Refer to Table 9 on page 18 and Table 10 on page 19 for information on the flash codes Every time the module powers up the lastALERT LED flash code that occurred prior to shutdown is displayed for 60 seconds The module will continue to display the previous flash code u...

Страница 18: ...Table 9 Flash Codes 506254 01 Page 18 of 25 Issue 0912 ...

Страница 19: ...Table 10 Flash Codes cont 506254 01 Page 19 of 25 Issue 0912 ...

Страница 20: ...Table 11 Miswired Module Troubleshooting 506254 01 Page 20 of 25 Issue 0912 ...

Страница 21: ...the unit should be gauged and refrigerant charge checked Refer to the Refrigerant Charging section on page 12 Indoor Coil 1 Clean coil if necessary 2 Check connecting lines and coils for evidence of oil leaks 3 Check condensate pan line and clean if necessary Indoor Unit 1 Clean or change filters 2 Adjust blower speed for cooling Measure the pressure drop over the coil to determine the correct blo...

Страница 22: ... _________ Compressor Amperage ________ Outdoor Fan __________ Maximum Fuse or Circuit Breaker ________________________ Electical Connections Tight Indoor Filter Clean Supply Voltage Unit Off __________ Indoor Blower RPM ___________________ S P Drop Over Indoor Dry ____________________ Outdoor Coil Entering Air Temperature ________ Voltage with Compressor Operating __________ Discharge Pressure __...

Страница 23: ...506254 01 Page 23 of 25 Issue 0912 WIRE DIAGRAM ...

Страница 24: ...stallation date and location c an accurate description of the problem WARRANTY LIMITATIONS 1 This warranty is void if the covered equipment is removed from the original installation site 2 This warranty does not cover damage or defect resulting from a Flood wind fire lightning mold or installation and operation in a corrosive atmosphere or otherwise in contact with corrosive materials chorine fluo...

Страница 25: ... lightening strike to the home or unit corrosive atmosphere contact with corrosive material Chlorine fluorine salt recycled waste water fertilizers or other damaging substances or other conditions beyond the control of Allied 2 Use of parts accessories or refrigerant not compatible with the unit 3 Modification change or alteration of the unit except as expressly directed in writing by Allied 4 Imp...

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