Magic-Pak MHP4-12 Series, Installation And Maintenance Instructions Manual

Page 1: ...llation These units are not approved for mobile home applications Such use could result in property damage personal injury or death WARNING General These instructions explain the recommended method of installation of the MagicPak All In One HVAC system model MHP4 electric cooling unit and associated electrical wiring These instructions and any instructions packaged with mating components and or ac...

Page 2: ...e carrier s freight bill Take special care to examine the unit inside the carton if the carton is damaged File a claim with the transportation company If any damage is discovered and reported to the carrier do not install the unit as claim may be denied Check the unit rating plate to confirm specifications are as ordered Limitations The unit should be installed in accordance with all national and ...

Page 3: ...imension B represents the height of the optional front return air duct opening J Return Air Opening K M Thermostat Wiring Connections Line Voltage Knockouts 7 8 and 1 1 8 Dia Top View 3 4 H 2 1 4 5 Supply Air Opening 1 6 1 16 28 H 6 1 8 Side View D A N Outdoor Fan Discharge Outdoor Coil F G E Rear View Return Air Opening Supply Air Opening Ventilation Air Chase Secondary Condensate Drain Pan 3 4 N...

Page 4: ...ury or death Accessibility Clearances The front of the unit must be accessible for service A minimum clearance of 30 in front of unit is required for service If the unit is enclosed a door or access panel aligned with the front of the unit is the preferred method of providing access The door or access panel opening must be a minimum of 30 wide centered on the unit and be as tall as the unit Supply...

Page 5: ...ASLEEVE 5 Orientation of Flange Two Positions Three Positions MHP4 12 09 12 Lower Lower Down MHP4 12 18 Up MHP4 12 24 30 Upper Middle MHP4 14 36 N A Upper Table 2 4 Place the unit into the wall sleeve Lift leading end of unit and walk unit onto the sleeve Once in the wall sleeve lower the unit into position This prevents damage to the base pads Assure that the unit is level and completely seated a...

Page 6: ...heck unit supply and return air outlets for debris before making ductwork connections It is recommended that supply and return duct connections at the unit be made with flexible joints If flexible ducts are used a 6 sheet metal starter collar is required The supply and return air duct systems should be fabricated per the designed CFM and static requirements of the job see Table 3 Ductwork should n...

Page 7: ...57 0 21 3 kW TAP 4 AUX HEAT 615 93 0 12 590 97 0 13 555 101 0 14 N A N A N A N A N A N A TAP 5 AUX HEAT 715 127 0 17 685 134 0 18 655 140 0 19 630 146 0 20 600 151 0 20 5 kW TAP 4 AUX HEAT 665 110 0 15 635 114 0 15 605 118 0 16 N A N A N A N A N A N A TAP 5 AUX HEAT 750 148 0 20 725 154 0 21 700 160 0 21 675 166 0 22 650 171 0 23 7 kW TAP 4 AUX HEAT 725 137 0 18 705 144 0 19 675 150 0 20 N A N A N...

Page 8: ...1260 315 0 42 1230 328 0 44 1200 338 0 45 N A Do not operate unit using this blower speed at this external static pressure As shipped speed for Cooling operation Blower speed must be field adjusted to Speed Tap 3 for higher duct static applications As shipped speed for Heating operation Blower speed must be field adjusted to Speed Tap 5 for higher duct static applications Table 3 Blower Performanc...

Page 9: ...he unit and the design will allow drainage out through the wall sleeve and louver to the outside of the building Use thread sealant on the threaded fittings Install threaded fittings by hand only Do not over torque the fittings Do not thread metal condensate fittings to unit drain pans CAUTION Ventilation Air Units ship with a panel installed that seals the return air compartment at the ventilatio...

Page 10: ...sulated wires 18 AWG should be used to connect the thermostat to the unit Electrical Connections The unit must be electrically grounded in accordance with local codes or in the absence of local codes with the National Electrical Code ANSI NFPA No 70 latest edition or CSA C22 2 Part 1 latest edition Any alteration of internal wiring will void certification and warranty Units are factory wired for a...

Page 11: ...ter the thermostat is satisfied NOTE The 7 2 and 10 kW heats strips offer a W1 and W2 thermostat connection Taking advantage of the two heat strip circuits requires a 3 stage thermostat Y for heat pump W1 for electric heat stage 1 and W2 for electric heat stage 2 If a 2 stage thermostat is used pigtail W1 and W2 wires together when connecting the thermostat wires at the unit Defrost Cycle If the o...

Page 12: ...ate Drain Foreign material should not be allowed to clog the drain hole Inspect and clear drain opening prior to each heating and cooling season The defrost control is also equipped with a set of pins to aid in the troubleshooting of the defrost system see Figure 11 The following is a brief outline of the testing of the defrost system 1 Defrost sensor must be closed 32 F or below If temperatures a...

Page 13: ...all sleeve and louver accessories for safe operation Improper installations could result in property damage personal injury or death WARNING Refer to Table 9 for dimension information B 29 1 8 Required Wall Opening C Maximum Wall Thickness Exterior Wall 16 A 16 5 8 29 Wall Sleeve Figure 12 ...

Page 14: ...AL 7 32 3 4 32 7 8 8 ASLEEVE10 2 ASLEEVEXT4 2 ALVRP 2 ALVRAL 7 32 3 4 32 7 8 10 14 ASLEEVE12 2 ASLEEVEXT4 2 ALVRP 2 ALVRAL 7 32 3 4 32 7 8 12 16 ASLEEVE6 5 ALVRP 3 45 45 1 8 6 ASLEEVE8 5 ALVRP 3 45 45 1 8 8 ASLEEVE10 5 ASLEEVEXT4 3 ALVRP 3 45 45 1 8 10 14 ASLEEVE12 5 ASLEEVEXT4 3 ALVRP 3 45 45 1 8 12 16 ASLEEVE6 5 ALVRAL 3 ALVRALC 3 45 45 1 8 6 ASLEEVE8 5 ALVRAL 3 ALVRALC 3 45 45 1 8 8 ASLEEVE10 5...

Page 15: ...508196 01 Issue 2120 Page 15 of 18 Wiring Diagrams Figure 13 Wiring Diagram MHP with Single Circuit and Hard Start Enabled 0 75 Ton through 2 5 Ton ...

Page 16: ...Page 16 of 18 508196 01 Issue 2120 Figure 14 Wiring Diagram MHP with Dual Circuit and Hard Start Enabled 0 75 Ton through 2 5 Ton ...

Page 17: ...508196 01 Issue 2120 Page 17 of 18 Figure 15 Wiring Diagram MHP with Single Circuit 3 Ton ...

Page 18: ...Page 18 of 18 508196 01 Issue 2120 Figure 16 Wiring Diagram MHP with Dual Circuit 3 Ton ...