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438MG / 40MA / 40MB
Multi-zone
18 to 48
SAFETY CONSIDERATIONS. . . . . . . . . . . . . . . . . . . . . . . . 2
SYSTEM REQUIREMENTS. . . . . . . . . . . . . . . . . . . . . . . . . 2
MODEL NUMBER NOMENCLATURE. . . . . . . . . . . . . . . . 3
SAFETY PRECAUTIONS. . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
INSTALLATION INSTRUCTIONS. . . . . . . . . . . . . . . . . . . . 6
REFRIGERANT PIPE CONNECTION. . . . . . . . . . . . . . . . . 29
ELECTRICAL WORK. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
AIR PURGING. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
TEST RUNNING. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
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Summary of Contents for Carrier 438MG series
- Page 1 438MG / 40MA / 40MB Multi-zone 18 to 48 SAFETY CONSIDERATIONS......2 SYSTEM REQUIREMENTS......2 MODEL NUMBER NOMENCLATURE.
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Page 3: Model Numbers
Model Numbers System System Volt- Ph @ Outdoor Model Tons Btuh 60Hz Number 18,000 208/230-1 38MGQC18---3 2.25 27,000 208/230-1 38MGQD27---3 208/230-1 36,000 38MGQF36---3 208/230-1 48,000 38MGQF48---3 Model number Nomenclature Digit 12 indicates voltage 1 = 115/l/60 3 = 208-230-1-60Hz Digits 10, 11 - blank Digit 9 - Indoor Fan Coil Unit Type B = High-Wall C = Cassette... - Page 5 0.12in(3mm)
- Page 6 4.72in(12cm). 7.55ft(2.3metres) 5.91in(15cm) More than 11.8in(30cm) More than 11.8in(30cm) of the unit is more than 11.8in(30cm) and left side is More than 23.6in(60cm) more than 11.8in(30cm). The front of the unit should have more than 78.7in(200cm) of clearance and the connection side (right side) should have more More than 78.7in ( 200cm) than 23.6in(60cm) of clearance.
- Page 7 2.6in/65mm ) User’s 13lbf.ft/1.8kgf.m, 30.4lbf.ft/4.2kgf.m 39.8lbf.ft/5.5kgf.m ,47.7lbf.ft/6.6kgf.m 0.16in/4mm) 1/4(6.35) 3/8(9.52) 3/8(9.52) 1/2(12.7) 5/8(15.9) Pipe size differs from appliance to appliance. To meet different pipe size requirem ents, sometimes the pipe connections need the transfer connector to install on the outdoor unit .) (Fasten it on the connective cable between the indoor units and outdoor unit after installation.) Except the above parts provided, the other parts needed for the installation must be purchased.
- Page 8 More than 5.9in(15cm) This illustration is for illustration purposes only. A minimum pipe run of 9.84ft(3m) is required to minimize vibration and excessive noise.
- Page 9 If the wall is made of brick, concrete or a similar material , drill five or eight 5mm diameterholes in the wall.Insert clip anchor for the appropriate mounting screws. 4.3/110 7.1/180 29.5/750 units. See Fig.5 for example. in(mm) 4.3/110 5.5/140 in(mm) 32.9x11(835x280) 5.5(140)
- Page 10 2.6in/65mm 2.6in/65mm When connecting the extension drain hose, insulate the connecting part of the extension drain hose with a shield pipe, do not let the drain hose slack. Fix the end of the connective pipe. (Refer to the Tightening Connection in the REFRIGERANT PIPING CONNECTION).
- Page 11 Get it out after the piping is complete. from side to side, up and down to ensure if it is fastened securely. 98.4ft(30m) 147.6ft(45m) 196.8ft(60m) 246.1ft(75m) 65.6ft(20m) 82ft(25m) 98.4ft(30m) 98.4ft(30m) 32.8ft(10m) 32.8ft(10m) 32.8ft(10m) 32.8ft(10m) 49.2ft(15m) 49.2ft(15m) 49.2ft(15m) 49.2ft(15m) Max. height difference between indoor units 32.8ft(10m) 32.8ft(10m) 32.8ft(10m)
- Page 12 1X+1X flow. noticeable Where piping between the indoor and outdoor units is possible within the allowable limit.(Refer to the installation manual of the outdoor unit.) 1 Remote controller 3.28ft/1m 2 Batteries Installation and owner's manual Anti-shock rubber (on some models) 3.28ft/1m Drain plug(only heat pump models)(with the outdoor unit) Seal ring(only heat pump models)(with the outdoor unit)
- Page 13 21.45in/545 22.44in/570 25.47in/647 Decoration panel dimensions...
- Page 14 or less.If the spacing between the ceiling and the unit is over 0.79in 20 mm , attach sealing material in the part or recover the ceiling. Establish a ceiling opening needed for After creating an opening in the ceiling, it may be necessary to reinforce the ceiling beams to keep the weight of the unit.
- Page 15 Install the drain piping as shown in the figure below and take measures against condensation. Improperly Check if the unit is leveled at all four corners with a water level or a water-filled vinyl tube as shown in the figure below.
- Page 16 Keep in mind that if water collects in the drain pipe, the pipe may become blocked. Unit: in/mm The incline of the drain hose should be Unit: in/mm 2.95in 75 mm or less so that the drain socket does not have to withstand additional force. pipes as shown in the figure below.
- Page 17 are properly seated in the groove of the panel. supplied screws as shown in the figure below.
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Page 18: Ducted Type
Ducted type Move the unit in install the original state. Make sure to install the electric insulation according to the relevant electric standard in case the unit is installed on metal part of building. Please keep away from the following places, or amalfunction may occur. (if unavoidable, please consult a professional): A. - Page 19 0.4/10 0.4/10 The treatment to the ceiling varies for each construction; please consult professionals for details. Reinforce the area that is cut off and consolidate the roof beam. Perform the connection of piping and wiring inside the ceiling. Install the hanging bolt in the following different situations: Install the hanging hook with an expansible Install with an insertion or embedding screw.
- Page 20 Unit: in/mm...
- Page 21 Size of Outline dimension Air outlet opening size Air return opening size mounted lug 27.6/700 8.3/210 25/635 22.4/570 2.6/65 19.4/493 1.4/35 4.7/119 23.4/595 7.9/200 3.2/80 29.1/740 13.8/350 36.2/920 8.3/210 25/635 22.4/570 2.6/65 28.1/713 1.4/35 4.7/119 32.1/815 7.9/200 3.2/80 37.8/960 13.8/350 Take off the ventilation panel and flange, cut off the staples at the side rail.
- Page 22 0.24in/6mm Please heat insulate the piping joint. Bind the contact insulation part between the unit and the installation location with bandage.
- Page 23 4.9ft~6.6ft/1.5m~2m condensation Please connect the pipe with PVC bond primer and glue and ensure there is no leakage. Do not impose any pressure on the connecting part of drainpipe. The downward gradient of the drain pipe should be over 1/100. Do not bend the drain pipe. 65.6ft/20m Refer to the figures on pipe right for the installation.
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Page 24: Console Type
5. Console Type This manual is subject to change due to technological improvements without further notices. are scope. If there are some spare and Its Frame Decide on before hand the path along Move this unit in its original package if unit’s center of gravity. - Page 25 Keep the indoor unit, outdoor unit, power supply 3.28ft/1m 3.28ft/1m ≥3.9in/100mm ≥39.4in/ 1000mm 8.3in/210mm 27.6in/700mm Do not allow air, dust, or other impu rities enter the 7.7in/195mm pipe system during the installation. connected. Execute the heat insulation work completely on both sides of the gas piping and the liquid piping.
- Page 26 Drill a hole in the wall (suitable for thesize of the wall conduit), then set thefittings (for example the wall conduit and its Allow the front panel to fall forward to cover). enable you remove it. the pipe allocation to not damage the open the stop values to the outdoor unit to ensure the refrigerant pipe connects the indoor unit with the outdoor unit to create...
- Page 27 signal wiring to avoid cross-disturbance. 65.6ft/20m pipe is long. A prop stand must be installed The installation bearer of the sensing device rotates to the another side, and 4.9ft~6.6ft/1.5m~2m thenremoves the cover of the electrical box. (Takeoff the electrical box if the capacity is18000btu/h or when using network function.) (Refer to Fig.50-10) (about 3.9in/10cm)
- Page 28 winds operates installing Particularly in windy areaw, install the unit to prev- ent the admission of wind. If you need to suspend the unit, the installation bracket should meet with technique requirement in the concrete or the same type of construction, or actions to reinforce shouldbe taken.
- Page 29 joint may differ from appliance of the outdoor unit, and then locally defects in the flaring work. 4.9ft/1.5m to the indoor and having completed the burr removal.(not possible to put them on after the flaring work is done).
- Page 30 D: Flaring work Tightening Connection Flare dimensin A Pipe gauge Flare shape Tightening torque (in/mm) 153～163 kgf.cm Ø1/4in/6.35 0.33/8.3 0.34/8.7 (15～16 N.m) 90 ° ± 4 255～265 kgf.cm Ø3/8in/9.52 0.47/12.0 0.48/12.4 (25～26N.m) 357～367 kgf.cm R0.016~0.031 Ø1/2in/12.7 0.61/15.4 0.62/15.8 (35～36 N.m) 0.4~0.8 459～480 kgf.cm Ø5/8in/15.9...
- Page 31 sq in/mm 0.001/0.75 0.002/1 0.002/1.5 refrain from working for at least 5 minutes 0.004/2.5 after the power is disconnected. and are switch. Please refer to the above tables and select the proper wire size under the local 0.4in/10mm 1.6in/40mm Prepare of the signal of the outdoor unit as identified Incorrect wiring connections may cause some...
- Page 32 of the indoor and outdoor units. For example, see Please refer to the following figures,if the client wants to perform their own wiring. Please run the main power cord through the lower line-outlet of the cord clamp. (Used to hi connect the con nective cable of the indoor and outdoo r units after installation.)
- Page 33 NOTE:Please refer to the following figures,if the client wants to perform their own wiring.
- Page 34 Always have an individual power circuit specifically for the air conditioner. As for the method of wiring, use the circuit diagram posted on the inside of control cover. fastens and ensure that they are all tightly fastened. (If they Make sure wiring.
- Page 35 AIR PURGING Air purging Air and moisture in the refrigerant system have undesirable effects as indicated below: ● Pressure in the system rises. ● Operating current rises. ● Cooling or heating efficiency drops. ● Moisture in the refrigerant circuit may freeze and block capillary tubing. ●...
- Page 36 AIR PURGING 4. Operate the vacuum pump to evacuate. After Manifold valve starting the evacuation, slightly loosen the flare Compound meter Pressure gauge nut of the Lo valve on the gas pipe side and check that the air is entering(operation noise -76cmHg of the vacuum pump changes and a compound meter indicates 0 instead of minus).
- Page 37 TEST RUNNING ● Gas leak check Soap water method: Apply a soap water or a liquid neutral detergent on the indoor unit connection Indoor unit check point or outdoor unit connections by a soft brush to check for leakage of the connecting points of th piping.
- Page 38 Catalog No: 38MG-40MA-MB-01SI Copyright 2014 Carrier Corporation S 7310 W. Morris St. S Indianapolis, IN 46231 Edition Date: 11/14 Replaces: New Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.