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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.

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.

Owner & Installation

Manual

MAHM*CTA

AIR Handler

Signature Series

Содержание Signature MAHM CTA Series

Страница 1: ...nual carefully before installation and keep it for future reference The Signature Series is NOT designed for amateur installation Installation SHOULD be performed by an authorized technician Please re...

Страница 2: ...General 3 Requirements 3 Installation Clearances 4 Installation 4 Condensate Drain 7 Duct System and Filters 8 Brazing Refrigerant Lines 9 Sealing the Unit 12 Electrical Connections 12 16 Check Out Pr...

Страница 3: ...2 368 DETAIL OF PIPING PLATE LIQUID LINE CONDENSATE DRAINS 2 Horizontal 1 3 4 44 3 4 19 2 3 4 70 3 1 2 89 PIPING PLATE 4 3 4 121 4 3 8 111 2 3 8 60 CONDENSATE DRAINS 2 Upflow and Downflow SUCTION LIN...

Страница 4: ...njury Take and protective clothing Requirements can result in back or other type of injury MAHM CTA units include a factory installed check capacities These units must be installed as a part of a matc...

Страница 5: ...ld cabinet they exit the conduit opening Sealant is required to prevent air leakage into and condensate from forming inside of the air handler the control box and on the electrical controls This unit...

Страница 6: ...air discharge horizontal applications Adequate support panels if installing in the horizontal position Right Hand Discharge 1 connections 2 With access door removed remove drain line plugs to install...

Страница 7: ...op cap has a 45 bend on one side and a 90 bend on the other The 90 bend must be on the same side as the horizontal drain pan as illustrated in Figure 4 DOWN FLOW RAIL FRONT EDGE OF HORIZONTAL DRAIN PA...

Страница 8: ...AIR HANDLER DRAIN PAN WHEN A COIL IS LOCATED ABOVE A FINISHED SPACE A 3 4 19 1MM SECONDARY DRAIN LINE MUST BE CONNECTED TO SECONDARY DRAIN PAN OR CONNECTED TO THE OVERFLOW DRAIN OUTLET OF THE AIR HAN...

Страница 9: ...ap in the main primary drain lines as close to the unit as practical see Figure 7 Make sure NOTE NOTE 7 Route the drain line to the outside or to an appropriate drain Drain lines must be installed so...

Страница 10: ...e 018 024 030 036 042 048 060 18 3 8 21 1 2 Figure 9 Cabinet and Duct Flange Brazing Refrigerant Lines Refrigerant lines must be clean dry refrigerant grade copper lines Air handler coils should be in...

Страница 11: ...th and that neither suction nor 3 To avoid damaging the rubber grommets in the cabinet source NOTE suction line connections 4 Connect the suction and liquid lines to the evaporator coil Take care to p...

Страница 12: ...CHARGE IF THERE IS NO PRESSURE WHEN THE RUBBER PLUGS ARE REMOVED CHECK THE COIL FOR LEAKS BEFORE INSTALLING REFER TO INSTRUCTIONS PROVIDED WITH OUTDOOR UNIT FOR LEAK TESTING EVACUATING AND CHARGING PR...

Страница 13: ...e foil faced insulation comes in provide a path for current to pass through to the outer metal cabinet While the current produced may not be enough to trip existing electrical safety devices e g fuses...

Страница 14: ...Figure 11 Electrical Connections NOTE in Figure 12 TOP SIDE Figure 12 Control Panel Relocated to End Panel 208 Volt Conversion 1 2 Remove the air handler access panel 3 panel as a reference move the...

Страница 15: ...507787 01C mrcool com Page 14 of 22 Figure 14 Typical Wiring Diagram MAHM CTA...

Страница 16: ...507787 01C mrcool com Page 15 of 22 Figure 15 Typical Wiring Diagram MAHM CTA...

Страница 17: ...EE NOTE SEE NOTE SEE NOTE Y Y AIR CONDITIONER UNIT R G BU W BK CONNECT COMMON WIRE ONLY IF REQUIRED REFER TO THE APPROPRIATE THERMOSTAT INSTALLATION INSTRUCTIONS AIR HANDLER THERMOSTAT HEAT PUMP UNIT...

Страница 18: ...0 WC 018 LOW 538 525 503 471 418 MED 688 670 639 603 548 HIGH 919 881 855 788 710 024 LOW 677 673 657 629 592 MED 1011 979 942 803 742 HIGH 1106 1045 999 917 857 030 LOW 871 870 853 812 769 MED 1078 1...

Страница 19: ...g cooled air 4 Set the thermostat 5 F higher than the indoor should cycle off 1 Set thermostat to call for auxiliary heat approximately minimum of 3 minutes for all sequencers to cycle on 2 Set the th...

Страница 20: ...temperature and humidity and the varying conditions inside the unit If the insulation inside surface temperature of the cabinet and outside of the cabinet can cause condensation on the corrosion and s...

Страница 21: ...Air Handler During Construction It is not recommended to use this air handler unit during any Air handler units may be used for heating heat pumps conditions are met A room thermostat must control the...

Страница 22: ..._____ TEMPERATURE DROP Cooling Mode Return Duct Temperature ___________ THERMOSTAT Adjusted and Programmed Return External Static ______ ______ Total External Static ______ ______ 6 Supply Duct Temper...

Страница 23: ...eturn External Static ______ ______ Total External Static ______ ______ 6 6 Supply Duct Temperature ___________ Temperature Drop ___________ TEMPERATURE RISE Heating Mode Return Duct Temperature _____...

Страница 24: ...d or manual are subject to change without prior notice Consult with the sales agency or manufacturer for details Signature Series MAHM CTA Air Handler ELECTRICIAN and or HVAC TECHNICIAN LICENSE INSTAL...

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