The Signature Series is NOT designed for amateur installation. Installation SHOULD be performed by an authorized technician. Please read this manual carefully before installation and keep it for future reference. Installation Manual Signature Series MAC16*A A/C SPLIT SYSTEM The Signature Series is NOT designed for amateur installation. Installation SHOULD be performed by an authorized technician. Please read this manual carefully before installation and keep it for future reference.
INSTALLATION INSTRUCTIONS MAC16*A A/C SPLIT SYSTEM This manual must be left with the homeowner for future reference. This is a safety alert symbol and should never be ignored. When you see this symbol on labels or in manuals, be alert to the potential for personal injury or death. Table of Contents Safety Precautions ......................................................2 Installation ...................................................................2 Electrical Connections .............................
These units are designed for use in residential and commercial type buildings. Units should be installed with combinations listed in the Air-Conditioning, Heating Products. Refer to http://www.ahridirectory.org. 5. When passing refrigerant tubes through the wall, seal opening with RTV or other silicon-based caulk. 6. Avoid direct tubing contact with water pipes, duct work, 7. Do not suspend refrigerant tubing from joists and studs with a rigid wire or strap which comes in direct contact with tubing.
Do not leave the lines open to the atmosphere for any period of time, moisture, dirt and bugs may contaminate the lines. Filter Drier and reliability. If the drier is shipped loose, it must be void, if the drier is not installed. Model Figure 1.
3. CAUTION If ANY refrigerant tubing is required to be buried by state or local codes, provide a 6 inch vertical rise at service valve. Before making braze connections, be sure all joints are clean. Before heat is applied for brazing, dry nitrogen procedure. 4. Isolate the vacuum pump from the system by closing the shutoff valves on the gauge-set. Disconnect the vacuum pump. 5. After evacuation of the connecting lines, remove the service valve cap and fully insert the hex wrench into the stem.
Remove access panel to gain access to unit wiring. Extend wires from disconnect through power wiring hole provided and into unit control box. Flexible conduit is required for the swing out control box feature. WARNING The unit cabinet must have an uninterrupted or unbroken ground. The ground must be installed in accordance with all electrical codes. Failure to follow this warning Connect ground wire to ground connection in control box for safety. Connect power wiring to contactor.
6. Measure indoor air (entering indoor coil) wet-bulb temperature with a sling psychrometer. 7. Compare superheat reading at service valve with the chart located on control box cover. 8. If unit has a higher suction line temperature than charted temperature, add refrigerant until charted temperature is reached, 9. If unit has a lower suction line temperature than charted temperature, reclaim refrigerant until charted temperature is reached.
Figure 3. A/C Single Phase Wiring Diagram (single-speed condenser fan) 507043-04C mrcool.
Figure 4. A/C Single Phase Wiring Diagram (multi-speed condenser fan) Page 8 of 9 mrcool.
Important System Information Homeowner’s Information • Your system should never be operated without a clean • Return air and supply air registers should be free from WARNING SHARP OBJECT HAZARD! Regular Maintenance Requirements service technician. These regular visits may include (among other things) checks for: • • • • • • • • • • • Periodically, debris should be brushed from the condenser coils. Condenser coils have sharp edges. Wear adequate body protection on body extremities (e.g. gloves).
Signature Series MAC16*A A/C SPLIT SYSTEM ELECTRICIAN and/or HVAC TECHNICIAN: LICENSE #: INSTALLATION DATE: INSTALLATION LOCATION: SERIAL NUMBER: The design and specifications of this product and/or manual are subject to change without prior notice. Consult with the sales agency or manufacturer for details.
