{"product_id":"lg-plafonnier-de-type-cassette-3x3-lgred-42-000-btu","title":"LG: 3X3 LGRED Cassette Ceiling Unit | 42,000 BTU","description":"\u003ch2 data-section-id=\"1rac0ui\" data-start=\"76\" data-end=\"179\"\u003eA 42,000 BTU ceiling cassette designed for large spaces where comfort needs to remain discreet\u003c\/h2\u003e\n\u003cp data-start=\"181\" data-end=\"716\"\u003eThe \u003cstrong data-start=\"184\" data-end=\"243\"\u003eLG: 3X3 LGRED Cassette Ceiling Unit | 42,000 BTU\u003c\/strong\u003e is intended for owners, building managers, businesses, offices, and large residential spaces who want a high-performance \u003cstrong data-start=\"378\" data-end=\"413\"\u003eHVAC heating and cooling\u003c\/strong\u003e solution without occupying a wall, without visible ducts, and without compromising interior design. At AirGreen, we consider it a particularly relevant product when the space to be treated is vast, open, frequented, and difficult to balance with a traditional wall-mounted heat pump.\u003c\/p\u003e\n\u003cp data-start=\"718\" data-end=\"1200\"\u003eThis four-way 3X3 cassette is designed to be integrated into a suspended ceiling or a suitable ceiling configuration. It diffuses air in multiple directions, allowing for more even distribution in environments such as a commercial space in \u003cstrong data-start=\"993\" data-end=\"1005\"\u003eMontreal\u003c\/strong\u003e, a conference room in \u003cstrong data-start=\"1033\" data-end=\"1042\"\u003eLaval\u003c\/strong\u003e, a professional office in \u003cstrong data-start=\"1070\" data-end=\"1083\"\u003eLongueuil\u003c\/strong\u003e, a common area on the \u003cstrong data-start=\"1105\" data-end=\"1117\"\u003eSouth Shore\u003c\/strong\u003e, a rental space on the \u003cstrong data-start=\"1140\" data-end=\"1153\"\u003eNorth Shore\u003c\/strong\u003e, or a large ground floor in \u003cstrong data-start=\"1185\" data-end=\"1199\"\u003eMontérégie\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp data-start=\"1202\" data-end=\"1736\"\u003eThe system presented here combines the indoor unit \u003cstrong data-start=\"1253\" data-end=\"1266\"\u003eKNSCB421A\u003c\/strong\u003e with the outdoor unit \u003cstrong data-start=\"1291\" data-end=\"1304\"\u003eKUSXA421A\u003c\/strong\u003e, under the system reference \u003cstrong data-start=\"1335\" data-end=\"1348\"\u003eKSSCA421A\u003c\/strong\u003e. It offers a nominal cooling capacity of \u003cstrong data-start=\"1384\" data-end=\"1415\"\u003e42,000 BTU\u003c\/strong\u003e and a nominal heating capacity of \u003cstrong data-start=\"1444\" data-end=\"1471\"\u003e48,000 BTU\u003c\/strong\u003e, according to the LG technical sheet. The brochure also indicates a cooling range of \u003cstrong data-start=\"1562\" data-end=\"1587\"\u003e16,800 to 49,000 BTU\/h\u003c\/strong\u003e and a heating range of \u003cstrong data-start=\"1617\" data-end=\"1642\"\u003e18,000 to 57,600 BTU\/h\u003c\/strong\u003e, with \u003cstrong data-start=\"1664\" data-end=\"1674\"\u003eLGRED°\u003c\/strong\u003e technology designed to maintain serious performance in cold weather.\u003c\/p\u003e\n\u003ch3 data-section-id=\"lkziqc\" data-start=\"1738\" data-end=\"1794\"\u003eWhat this 3X3 format changes in a real HVAC project\u003c\/h3\u003e\n\u003cp data-start=\"1796\" data-end=\"2237\"\u003eA wall-mounted heat pump can be perfectly suitable for a closed room, a bedroom, a small business, or a condo. But in a larger space, the lateral diffusion of a single wall-mounted unit quickly reaches its limits. Temperature differences are then observed: a too-warm zone near the unit, a cooler zone on the opposite side, employees constantly adjusting the thermostat, or uncomfortable customers near the windows.\u003c\/p\u003e\n\u003cp data-start=\"2239\" data-end=\"2538\"\u003eThe \u003cstrong data-start=\"2242\" data-end=\"2294\"\u003eLGRED 3X3 42,000 BTU cassette ceiling unit\u003c\/strong\u003e solves a significant part of this problem thanks to its four-way diffusion. Installed in the right location, it allows air to be distributed in the center of the area rather than pushing it from a wall. This is particularly advantageous in:\u003c\/p\u003e\n\u003cul data-start=\"2540\" data-end=\"2894\"\u003e\n\u003cli data-section-id=\"1crciv8\" data-start=\"2540\" data-end=\"2578\"\u003ebusinesses with a central counter;\u003c\/li\u003e\n\u003cli data-section-id=\"1vpsi1c\" data-start=\"2579\" data-end=\"2608\"\u003eopen-plan offices;\u003c\/li\u003e\n\u003cli data-section-id=\"116f7gr\" data-start=\"2609\" data-end=\"2632\"\u003ewaiting rooms;\u003c\/li\u003e\n\u003cli data-section-id=\"c8ixrj\" data-start=\"2633\" data-end=\"2683\"\u003esmall to medium-sized restaurants;\u003c\/li\u003e\n\u003cli data-section-id=\"s55ube\" data-start=\"2684\" data-end=\"2700\"\u003eclinics;\u003c\/li\u003e\n\u003cli data-section-id=\"1mt4m2\" data-start=\"2701\" data-end=\"2742\"\u003ecommon areas of multi-unit dwellings;\u003c\/li\u003e\n\u003cli data-section-id=\"lv5b53\" data-start=\"2743\" data-end=\"2796\"\u003elarge residential living rooms with suitable ceilings;\u003c\/li\u003e\n\u003cli data-section-id=\"2sg9jx\" data-start=\"2797\" data-end=\"2894\"\u003eservice premises on the \u003cstrong data-start=\"2824\" data-end=\"2836\"\u003eSouth Shore\u003c\/strong\u003e, \u003cstrong data-start=\"2838\" data-end=\"2851\"\u003eNorth Shore\u003c\/strong\u003e, \u003cstrong data-start=\"2853\" data-end=\"2865\"\u003eMontreal\u003c\/strong\u003e, \u003cstrong data-start=\"2867\" data-end=\"2876\"\u003eLaval\u003c\/strong\u003e, and \u003cstrong data-start=\"2880\" data-end=\"2893\"\u003eLongueuil\u003c\/strong\u003e.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"2896\" data-end=\"3356\"\u003eFor the \u003cstrong data-start=\"2915\" data-end=\"2934\"\u003ecommercial HVAC\u003c\/strong\u003e projects we evaluate, the question is not only whether the unit has enough BTUs. It is also important to know if the air will reach the right areas, at the right speed, without unpleasant direct drafts. The LG cassette meets this challenge well, thanks to features such as \u003cstrong data-start=\"3210\" data-end=\"3224\"\u003eSwirl Wind\u003c\/strong\u003e, \u003cstrong data-start=\"3226\" data-end=\"3252\"\u003eDirect \/ Indirect Wind\u003c\/strong\u003e, \u003cstrong data-start=\"3254\" data-end=\"3268\"\u003eSmart Mode\u003c\/strong\u003e, and \u003cstrong data-start=\"3272\" data-end=\"3288\"\u003eRefresh Mode\u003c\/strong\u003e, which help to better adapt diffusion according to space usage.\u003c\/p\u003e\n\u003ch3 data-section-id=\"1xium4z\" data-start=\"3358\" data-end=\"3416\"\u003eRelevant cold-climate performance for Quebec\u003c\/h3\u003e\n\u003cp data-start=\"3418\" data-end=\"3730\"\u003eThe \u003cstrong data-start=\"3427\" data-end=\"3437\"\u003eLGRED°\u003c\/strong\u003e designation is an important feature of this cassette. In the Quebec market, a unit that performs well in cooling is not enough. Our customers want an \u003cstrong data-start=\"3596\" data-end=\"3633\"\u003eefficient heat pump for heating\u003c\/strong\u003e, capable of providing comfort when the temperature drops below zero, sometimes well below zero.\u003c\/p\u003e\n\u003cp data-start=\"3732\" data-end=\"4336\"\u003eThe LG technical data sheet indicates an outdoor heating operating range down to \u003cstrong data-start=\"3821\" data-end=\"3831\"\u003e-13 °F\u003c\/strong\u003e, which is approximately \u003cstrong data-start=\"3846\" data-end=\"3856\"\u003e-25 °C\u003c\/strong\u003e, matching the information displayed on the product sheet. It also indicates maximum heating values for various outdoor temperatures, including \u003cstrong data-start=\"4031\" data-end=\"4055\"\u003e50,700 BTU\/h at 17 °F\u003c\/strong\u003e, \u003cstrong data-start=\"4057\" data-end=\"4080\"\u003e43,500 BTU\/h at 5 °F\u003c\/strong\u003e, \u003cstrong data-start=\"4082\" data-end=\"4106\"\u003e39,200 BTU\/h at -4 °F\u003c\/strong\u003e, and \u003cstrong data-start=\"4110\" data-end=\"4135\"\u003e36,100 BTU\/h at -13 °F\u003c\/strong\u003e. This data is useful for understanding the system's behavior in winter, especially in wind-exposed areas like certain parts of \u003cstrong data-start=\"4281\" data-end=\"4290\"\u003eLaval\u003c\/strong\u003e, the \u003cstrong data-start=\"4298\" data-end=\"4311\"\u003eNorth Shore\u003c\/strong\u003e, or \u003cstrong data-start=\"4321\" data-end=\"4335\"\u003eMontérégie\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp data-start=\"4338\" data-end=\"4974\"\u003eHowever, these figures must be interpreted correctly. A manufacturer's technical documents may present nominal, minimum, maximum capacities, AHRI certified values, and data used for eligibility for certain financial aid. At AirGreen, we always validate the \u003cstrong data-start=\"4638\" data-end=\"4663\"\u003eAHRI number 214837930\u003c\/strong\u003e, installation conditions, and project requirements before recommending the final model. This step prevents common errors, such as choosing a unit solely based on a BTU figure without considering insulation, ceiling height, windows, foot traffic, or the actual use of the premises.\u003c\/p\u003e\n\u003ch3 data-section-id=\"1t00g6m\" data-start=\"4976\" data-end=\"5021\"\u003eKey technical data to remember\u003c\/h3\u003e\n\u003cp data-start=\"5023\" data-end=\"5137\"\u003eHere are the characteristics that matter most in a serious evaluation of this \u003cstrong data-start=\"5109\" data-end=\"5135\"\u003e42,000 BTU LG cassette\u003c\/strong\u003e:\u003c\/p\u003e\n\u003cul data-start=\"5139\" data-end=\"6486\"\u003e\n\u003cli data-section-id=\"qtnk0n\" data-start=\"5139\" data-end=\"5175\"\u003e\n\u003cstrong data-start=\"5141\" data-end=\"5161\"\u003eIndoor Model\u003c\/strong\u003e: KNSCB421A\u003c\/li\u003e\n\u003cli data-section-id=\"11og972\" data-start=\"5176\" data-end=\"5212\"\u003e\n\u003cstrong data-start=\"5178\" data-end=\"5198\"\u003eOutdoor Model\u003c\/strong\u003e: KUSXA421A\u003c\/li\u003e\n\u003cli data-section-id=\"1th272j\" data-start=\"5213\" data-end=\"5250\"\u003e\n\u003cstrong data-start=\"5215\" data-end=\"5236\"\u003eSystem Reference\u003c\/strong\u003e: KSSCA421A\u003c\/li\u003e\n\u003cli data-section-id=\"pwp09f\" data-start=\"5251\" data-end=\"5282\"\u003e\n\u003cstrong data-start=\"5253\" data-end=\"5268\"\u003eAHRI Number\u003c\/strong\u003e: 214837930\u003c\/li\u003e\n\u003cli data-section-id=\"1ggfmrd\" data-start=\"5283\" data-end=\"5315\"\u003e\n\u003cstrong data-start=\"5285\" data-end=\"5303\"\u003eENERGY STAR ID\u003c\/strong\u003e: 3553101\u003c\/li\u003e\n\u003cli data-section-id=\"19p9ie9\" data-start=\"5316\" data-end=\"5356\"\u003e\n\u003cstrong data-start=\"5318\" data-end=\"5348\"\u003eENERGY STAR® Certification\u003c\/strong\u003e: yes\u003c\/li\u003e\n\u003cli data-section-id=\"1an0j9i\" data-start=\"5357\" data-end=\"5396\"\u003e\n\u003cstrong data-start=\"5359\" data-end=\"5388\"\u003eENERGY STAR® Cold Climate\u003c\/strong\u003e: yes\u003c\/li\u003e\n\u003cli data-section-id=\"1ks80zi\" data-start=\"5397\" data-end=\"5454\"\u003e\n\u003cstrong data-start=\"5399\" data-end=\"5439\"\u003eNominal Cooling Capacity\u003c\/strong\u003e: 42,000 BTU\u003c\/li\u003e\n\u003cli data-section-id=\"15gvx9n\" data-start=\"5455\" data-end=\"5524\"\u003e\n\u003cstrong data-start=\"5457\" data-end=\"5491\"\u003eNominal Heating Capacity\u003c\/strong\u003e: 48,000 BTU according to LG sheet\u003c\/li\u003e\n\u003cli data-section-id=\"1t4iqd7\" data-start=\"5525\" data-end=\"5545\"\u003e\n\u003cstrong data-start=\"5527\" data-end=\"5536\"\u003eSEER2\u003c\/strong\u003e: 21.5\u003c\/li\u003e\n\u003cli data-section-id=\"1ye0kq1\" data-start=\"5546\" data-end=\"5565\"\u003e\n\u003cstrong data-start=\"5548\" data-end=\"5556\"\u003eEER2\u003c\/strong\u003e: 13.5\u003c\/li\u003e\n\u003cli data-section-id=\"10wddso\" data-start=\"5566\" data-end=\"5586\"\u003e\n\u003cstrong data-start=\"5568\" data-end=\"5577\"\u003eHSPF2\u003c\/strong\u003e: 10.8\u003c\/li\u003e\n\u003cli data-section-id=\"1thup65\" data-start=\"5587\" data-end=\"5613\"\u003e\n\u003cstrong data-start=\"5589\" data-end=\"5604\"\u003eRefrigerant\u003c\/strong\u003e: R-32\u003c\/li\u003e\n\u003cli data-section-id=\"nqieul\" data-start=\"5614\" data-end=\"5651\"\u003e\n\u003cstrong data-start=\"5616\" data-end=\"5643\"\u003eRefrigerant Control\u003c\/strong\u003e: EEV\u003c\/li\u003e\n\u003cli data-section-id=\"bytg9k\" data-start=\"5652\" data-end=\"5691\"\u003e\n\u003cstrong data-start=\"5654\" data-end=\"5679\"\u003eRefrigerant Charge\u003c\/strong\u003e: 7.50 lb\u003c\/li\u003e\n\u003cli data-section-id=\"txmp2i\" data-start=\"5692\" data-end=\"5733\"\u003e\n\u003cstrong data-start=\"5694\" data-end=\"5715\"\u003eDehumidification\u003c\/strong\u003e: 8.36 pints\/h\u003c\/li\u003e\n\u003cli data-section-id=\"1w4fc72\" data-start=\"5734\" data-end=\"5783\"\u003e\n\u003cstrong data-start=\"5736\" data-end=\"5761\"\u003eIndoor Airflow\u003c\/strong\u003e: up to 1,130 CFM\u003c\/li\u003e\n\u003cli data-section-id=\"1tpsmoj\" data-start=\"5784\" data-end=\"5869\"\u003e\n\u003cstrong data-start=\"5786\" data-end=\"5816\"\u003eIndoor Sound Pressure\u003c\/strong\u003e: 46 \/ 43 \/ 41 dB(A), depending on indicated speeds\u003c\/li\u003e\n\u003cli data-section-id=\"1d25ra9\" data-start=\"5870\" data-end=\"5947\"\u003e\n\u003cstrong data-start=\"5872\" data-end=\"5902\"\u003eOutdoor Sound Pressure\u003c\/strong\u003e: 54 \/ 56 dB(A) in cooling\/heating\u003c\/li\u003e\n\u003cli data-section-id=\"1p6lm6d\" data-start=\"5948\" data-end=\"6004\"\u003e\n\u003cstrong data-start=\"5950\" data-end=\"5976\"\u003eIndoor Dimensions\u003c\/strong\u003e: 37.38 x 37.38 x 9.38 in\u003c\/li\u003e\n\u003cli data-section-id=\"1w29kn8\" data-start=\"6005\" data-end=\"6059\"\u003e\n\u003cstrong data-start=\"6007\" data-end=\"6033\"\u003eOutdoor Dimensions\u003c\/strong\u003e: 37.41 x 13 x 54.25 in\u003c\/li\u003e\n\u003cli data-section-id=\"1yo27je\" data-start=\"6060\" data-end=\"6112\"\u003e\n\u003cstrong data-start=\"6062\" data-end=\"6076\"\u003ePiping\u003c\/strong\u003e: 3\/8 in liquid and 5\/8 in vapor\u003c\/li\u003e\n\u003cli data-section-id=\"1jdesxo\" data-start=\"6113\" data-end=\"6172\"\u003e\n\u003cstrong data-start=\"6115\" data-end=\"6151\"\u003eMin.\/Max. Piping Length\u003c\/strong\u003e: 16.4 ft \/ 246 ft\u003c\/li\u003e\n\u003cli data-section-id=\"ncd2ww\" data-start=\"6173\" data-end=\"6225\"\u003e\n\u003cstrong data-start=\"6175\" data-end=\"6213\"\u003eLength without added refrigerant\u003c\/strong\u003e: 24.6 ft\u003c\/li\u003e\n\u003cli data-section-id=\"2c91xp\" data-start=\"6226\" data-end=\"6262\"\u003e\n\u003cstrong data-start=\"6228\" data-end=\"6250\"\u003eMaximum Elevation\u003c\/strong\u003e: 98.4 ft\u003c\/li\u003e\n\u003cli data-section-id=\"z3tilq\" data-start=\"6263\" data-end=\"6324\"\u003e\n\u003cstrong data-start=\"6265\" data-end=\"6292\"\u003eElectrical Power\u003c\/strong\u003e: 208-230 V \/ 60 Hz \/ 1 phase\u003c\/li\u003e\n\u003cli data-section-id=\"8ncg9p\" data-start=\"6325\" data-end=\"6343\"\u003e\n\u003cstrong data-start=\"6327\" data-end=\"6334\"\u003eMCA\u003c\/strong\u003e: 32 A\u003c\/li\u003e\n\u003cli data-section-id=\"1pjh43p\" data-start=\"6344\" data-end=\"6362\"\u003e\n\u003cstrong data-start=\"6346\" data-end=\"6353\"\u003eMOP\u003c\/strong\u003e: 40 A\u003c\/li\u003e\n\u003cli data-section-id=\"1q0xp99\" data-start=\"6363\" data-end=\"6443\"\u003e\n\u003cstrong data-start=\"6365\" data-end=\"6386\"\u003eDisplayed Warranty\u003c\/strong\u003e: 10 years compressor, 10 years parts, 0 year labor\u003c\/li\u003e\n\u003cli data-section-id=\"hmkqle\" data-start=\"6444\" data-end=\"6486\"\u003e\n\u003cstrong data-start=\"6446\" data-end=\"6473\"\u003eAdditional Warranty\u003c\/strong\u003e: possible\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"6488\" data-end=\"6871\"\u003eThis data confirms that this is not a supplemental appliance for a small room. It is a \u003cstrong data-start=\"6589\" data-end=\"6625\"\u003ehigh-capacity HVAC solution\u003c\/strong\u003e that must be integrated into a coherent installation design. The indoor unit requires ceiling space, adequate drain management, service access, electrical coordination, and precise refrigeration path analysis.\u003c\/p\u003e\n\u003ch3 data-section-id=\"1i0xhk2\" data-start=\"6873\" data-end=\"6938\"\u003eAccessories and options: what to plan for before quoting\u003c\/h3\u003e\n\u003cp data-start=\"6940\" data-end=\"7276\"\u003eThe LG sheet mentions an included wireless remote control, the \u003cstrong data-start=\"7005\" data-end=\"7018\"\u003ePWLSSB21H\u003c\/strong\u003e. It also indicates that the \u003cstrong data-start=\"7046\" data-end=\"7072\"\u003ePT-AAGW0 grille kit\u003c\/strong\u003e is required. This precision is important because in an HVAC submission, certain accessories are essential for the final installation and should not be treated as simple aesthetic options.\u003c\/p\u003e\n\u003cp data-start=\"7278\" data-end=\"7344\"\u003eSeveral options may also be relevant depending on the project:\u003c\/p\u003e\n\u003cul data-start=\"7346\" data-end=\"8133\"\u003e\n\u003cli data-section-id=\"16ejjax\" data-start=\"7346\" data-end=\"7420\"\u003e\n\u003cstrong data-start=\"7348\" data-end=\"7373\"\u003eWiFi Module PWFMDD200\u003c\/strong\u003e, if the client wants remote control;\u003c\/li\u003e\n\u003cli data-section-id=\"109axwc\" data-start=\"7421\" data-end=\"7525\"\u003e\n\u003cstrong data-start=\"7423\" data-end=\"7476\"\u003epremium panel with air purification PT-AFGW0S\u003c\/strong\u003e, useful in certain commercial environments;\u003c\/li\u003e\n\u003cli data-section-id=\"z11bpc\" data-start=\"7526\" data-end=\"7600\"\u003e\n\u003cstrong data-start=\"7528\" data-end=\"7558\"\u003eMultiSITE™ CRC controllers\u003c\/strong\u003e, for buildings with multiple zones;\u003c\/li\u003e\n\u003cli data-section-id=\"1wvmsy2\" data-start=\"7601\" data-end=\"7668\"\u003e\n\u003cstrong data-start=\"7603\" data-end=\"7636\"\u003eAC Smart 5 central controller\u003c\/strong\u003e, for more advanced management;\u003c\/li\u003e\n\u003cli data-section-id=\"14edxq5\" data-start=\"7669\" data-end=\"7797\"\u003e\n\u003cstrong data-start=\"7671\" data-end=\"7705\"\u003eBACnet or LonWorks gateways\u003c\/strong\u003e, in buildings where the HVAC system must integrate with centralized technical management;\u003c\/li\u003e\n\u003cli data-section-id=\"1h1mj6h\" data-start=\"7798\" data-end=\"7910\"\u003e\n\u003cstrong data-start=\"7800\" data-end=\"7838\"\u003eremote temperature sensors\u003c\/strong\u003e, useful when the thermostat cannot be placed in the ideal location;\u003c\/li\u003e\n\u003cli data-section-id=\"w1nr59\" data-start=\"7911\" data-end=\"7985\"\u003e\n\u003cstrong data-start=\"7913\" data-end=\"7930\"\u003edry contacts\u003c\/strong\u003e, often requested in commercial environments;\u003c\/li\u003e\n\u003cli data-section-id=\"1pljd68\" data-start=\"7986\" data-end=\"8133\"\u003e\n\u003cstrong data-start=\"7988\" data-end=\"8038\"\u003elow temperature wind deflector ZLABGP04B\u003c\/strong\u003e, when the outdoor location is exposed and operating conditions require it.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"8135\" data-end=\"8520\"\u003eIn a business in \u003cstrong data-start=\"8155\" data-end=\"8168\"\u003eLongueuil\u003c\/strong\u003e or an office on the \u003cstrong data-start=\"8185\" data-end=\"8197\"\u003eSouth Shore\u003c\/strong\u003e, for example, centralized control may be more relevant than simple wall control. In a high-end residence in \u003cstrong data-start=\"8324\" data-end=\"8336\"\u003eMontreal\u003c\/strong\u003e or on the \u003cstrong data-start=\"8343\" data-end=\"8356\"\u003eNorth Shore\u003c\/strong\u003e, WiFi and visual discretion may be priorities. Our role is to distinguish what adds real value from what would simply be superfluous.\u003c\/p\u003e\n\u003ch2 data-section-id=\"1afedfa\" data-start=\"8522\" data-end=\"8609\"\u003eAirGreen Installation: Where advertised performance becomes measurable comfort\u003c\/h2\u003e\n\u003cp data-start=\"8611\" data-end=\"8999\"\u003eA 42,000 BTU unit that is poorly placed, incorrectly sized, or improperly connected can lead to disappointing results. Conversely, a well-selected and properly installed cassette can transform a difficult-to-temper space. At AirGreen, our approach is based on a comprehensive analysis before installation, because every \u003cstrong data-start=\"8939\" data-end=\"8963\"\u003ecassette heat pump\u003c\/strong\u003e project has specific constraints.\u003c\/p\u003e\n\u003ch3 data-section-id=\"1a3d9if\" data-start=\"9001\" data-end=\"9073\"\u003eThe checks we perform before recommending this model\u003c\/h3\u003e\n\u003cp data-start=\"9075\" data-end=\"9160\"\u003eBefore proposing the \u003cstrong data-start=\"9096\" data-end=\"9124\"\u003eLG KNSCB421A \/ KUSXA421A\u003c\/strong\u003e, we validate several elements:\u003c\/p\u003e\n\u003col data-start=\"9162\" data-end=\"10947\"\u003e\n\u003cli data-section-id=\"11fa3op\" data-start=\"9162\" data-end=\"9397\"\u003e\n\u003cstrong data-start=\"9165\" data-end=\"9195\"\u003eThe actual thermal load\u003c\/strong\u003e\u003cbr data-start=\"9195\" data-end=\"9198\"\u003eWe assess the area, ceiling height, insulation, solar orientation, windows, frequently opened doors, human occupancy, and heat-generating appliances.\u003c\/li\u003e\n\u003cli data-section-id=\"2s8k2y\" data-start=\"9399\" data-end=\"9738\"\u003e\n\u003cstrong data-start=\"9402\" data-end=\"9429\"\u003eThe ceiling structure\u003c\/strong\u003e\u003cbr data-start=\"9429\" data-end=\"9432\"\u003eA 3X3 cassette requires sufficient space, a suitable opening, a compatible grille, and service access. In some commercial premises in \u003cstrong data-start=\"9583\" data-end=\"9595\"\u003eMontreal\u003c\/strong\u003e, suspended ceilings facilitate integration. In other buildings, coordination with a general contractor may be necessary.\u003c\/li\u003e\n\u003cli data-section-id=\"1whprxf\" data-start=\"9740\" data-end=\"10053\"\u003e\n\u003cstrong data-start=\"9743\" data-end=\"9774\"\u003eCondensate drainage\u003c\/strong\u003e\u003cbr data-start=\"9774\" data-end=\"9777\"\u003eThis model includes an internal condensate pump, which facilitates several configurations. This does not replace good drain planning. Insufficient slope, too long a run, or a poorly chosen discharge point can cause avoidable service calls.\u003c\/li\u003e\n\u003cli data-section-id=\"16v3yx6\" data-start=\"10055\" data-end=\"10409\"\u003e\n\u003cstrong data-start=\"10058\" data-end=\"10084\"\u003eThe refrigeration path\u003c\/strong\u003e\u003cbr data-start=\"10084\" data-end=\"10087\"\u003eThe \u003cstrong data-start=\"10107\" data-end=\"10127\"\u003e3\/8 in and 5\/8 in\u003c\/strong\u003e piping must comply with permitted lengths and best practices for brazing, protection, insulation, and sealing. On a building on the \u003cstrong data-start=\"10263\" data-end=\"10276\"\u003eNorth Shore\u003c\/strong\u003e or in \u003cstrong data-start=\"10282\" data-end=\"10291\"\u003eLaval\u003c\/strong\u003e, the outdoor location must also consider snow, clearance, noise, and access for maintenance.\u003c\/li\u003e\n\u003c\/ol\u003e\u003cli data-section-id=\"1fyi012\" data-start=\"10411\" data-end=\"10698\"\u003e\n\u003cstrong data-start=\"10414\" data-end=\"10443\"\u003ePower Supply\u003c\/strong\u003e\u003cbr data-start=\"10443\" data-end=\"10446\"\u003eWith a \u003cstrong data-start=\"10457\" data-end=\"10472\"\u003e32 A MCA\u003c\/strong\u003e and a \u003cstrong data-start=\"10480\" data-end=\"10511\"\u003emaximum protection of 40 A\u003c\/strong\u003e, electrical coordination must be done correctly. We check panel constraints, distance, compliance, and local requirements before finalizing the submission.\u003c\/li\u003e\n\u003cli data-section-id=\"j1c8jh\" data-start=\"10700\" data-end=\"10947\"\u003e\n\u003cstrong data-start=\"10703\" data-end=\"10731\"\u003eActual Building Use\u003c\/strong\u003e\u003cbr data-start=\"10731\" data-end=\"10734\"\u003eA hair salon, a clinic, an office, a daycare, and a showroom do not behave in the same way. Schedules, occupancy density, and ventilation influence the system choice.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003ch3 data-section-id=\"1k44cjy\" data-start=\"10949\" data-end=\"11017\"\u003eField example: a commercial space with uncomfortable zones\u003c\/h3\u003e\n\u003cp data-start=\"11019\" data-end=\"11426\"\u003eA frequent scenario at AirGreen involves commercial premises where the old system blows too hard in one area and almost not at all elsewhere. In an open space of about 1,500 to 2,000 sq ft, with a suspended ceiling and a large glass facade, the traditional wall-mounted solution can create a recurring complaint: people near the unit are cold in summer, while the back of the room remains too hot.\u003c\/p\u003e\n\u003cp data-start=\"11428\" data-end=\"11897\"\u003eIn this type of situation, a \u003cstrong data-start=\"11459\" data-end=\"11487\"\u003e3X3 ceiling cassette\u003c\/strong\u003e like this LG model becomes interesting. Strategically placed, it distributes air more evenly. The maximum flow rate of \u003cstrong data-start=\"11620\" data-end=\"11633\"\u003e1,130 CFM\u003c\/strong\u003e helps treat a significant volume of air, while four-way diffusion avoids concentrating the flow on a single area. The desired result is not just an adequate average temperature, but stable comfort in the actually occupied zones.\u003c\/p\u003e\n\u003ch3 data-section-id=\"aksb3g\" data-start=\"11899\" data-end=\"11972\"\u003eResidential example: a large ground floor where aesthetics matter\u003c\/h3\u003e\n\u003cp data-start=\"11974\" data-end=\"12348\"\u003eWe also receive requests for large open-plan residential areas, particularly in renovated homes in \u003cstrong data-start=\"12092\" data-end=\"12104\"\u003eMontreal\u003c\/strong\u003e, \u003cstrong data-start=\"12106\" data-end=\"12115\"\u003eLaval\u003c\/strong\u003e, and on the \u003cstrong data-start=\"12126\" data-end=\"12138\"\u003eSouth Shore\u003c\/strong\u003e. Clients often want to avoid a large, visible wall-mounted unit in a living room or dining room. When the structure allows, a \u003cstrong data-start=\"12275\" data-end=\"12308\"\u003eceiling-recessed cassette\u003c\/strong\u003e can offer a more discreet integration.\u003c\/p\u003e\n\u003cp data-start=\"12350\" data-end=\"12706\"\u003eIn this context, installation must be carefully considered. Perceived noise, grille location, drain access, distance to the outdoor unit, and ceiling finish all influence satisfaction as much as the stated BTUs. This is why we rarely recommend this type of equipment without a technical visit or detailed analysis.\u003c\/p\u003e\n\u003ch3 data-section-id=\"1kbt475\" data-start=\"12708\" data-end=\"12774\"\u003eLogisVert Grant: a point to validate before installation\u003c\/h3\u003e\n\u003cp data-start=\"12776\" data-end=\"13115\"\u003eThe product sheet indicates a \u003cstrong data-start=\"12805\" data-end=\"12852\"\u003eLogisVert provincial grant of $3,432\u003c\/strong\u003e, with an update displayed on \u003cstrong data-start=\"12887\" data-end=\"12907\"\u003eNovember 26, 2025\u003c\/strong\u003e. As financial aid programs can evolve based on installation dates, eligibility criteria, and certified numbers, we always validate the information before the final submission.\u003c\/p\u003e\n\u003cp data-start=\"13117\" data-end=\"13485\"\u003eHydro-Québec provides a search tool to assess financial aid based on the model number or the \u003cstrong data-start=\"13244\" data-end=\"13259\"\u003eAHRI number\u003c\/strong\u003e of a heat pump, and specifies that the application must be submitted within nine months of installation. For this model, the displayed AHRI number is \u003cstrong data-start=\"13417\" data-end=\"13430\"\u003e214837930\u003c\/strong\u003e, which facilitates verification at the time of the file.\u003c\/p\u003e\n\u003cp data-start=\"13487\" data-end=\"13865\"\u003eThis step is particularly important for clients in \u003cstrong data-start=\"13551\" data-end=\"13563\"\u003eMontreal\u003c\/strong\u003e, \u003cstrong data-start=\"13565\" data-end=\"13574\"\u003eLaval\u003c\/strong\u003e, \u003cstrong data-start=\"13576\" data-end=\"13589\"\u003eLongueuil\u003c\/strong\u003e, the \u003cstrong data-start=\"13591\" data-end=\"13604\"\u003eNorth Shore\u003c\/strong\u003e, and the \u003cstrong data-start=\"13608\" data-end=\"13620\"\u003eSouth Shore\u003c\/strong\u003e who compare several quotes. A lower quote on paper can become less advantageous if the unit is not eligible, if the grant calculation is misunderstood, or if the required documents are not provided correctly.\u003c\/p\u003e\n\u003ch3 data-section-id=\"5h7m9x\" data-start=\"13867\" data-end=\"13920\"\u003eMistakes to avoid with a 42,000 BTU cassette\u003c\/h3\u003e\n\u003cp data-start=\"13922\" data-end=\"14063\"\u003eA \u003cstrong data-start=\"13926\" data-end=\"13947\"\u003eHVAC installation\u003c\/strong\u003e of this level requires more than just a simple connection. Here are the mistakes we see too often in the market:\u003c\/p\u003e\n\u003cul data-start=\"14065\" data-end=\"14638\"\u003e\n\u003cli data-section-id=\"107ogky\" data-start=\"14065\" data-end=\"14139\"\u003echoosing the unit solely based on area, without a load calculation;\u003c\/li\u003e\n\u003cli data-section-id=\"1e19rms\" data-start=\"14140\" data-end=\"14200\"\u003einstalling the cassette too close to a wall or partition;\u003c\/li\u003e\n\u003cli data-section-id=\"17k3ogy\" data-start=\"14201\" data-end=\"14263\"\u003eneglecting ceiling height and actual air throw;\u003c\/li\u003e\n\u003cli data-section-id=\"17gd76\" data-start=\"14264\" data-end=\"14314\"\u003eforgetting future access for \u003cstrong data-start=\"14295\" data-end=\"14313\"\u003eHVAC maintenance\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli data-section-id=\"1wt6wv3\" data-start=\"14315\" data-end=\"14356\"\u003eunderestimating condensate management;\u003c\/li\u003e\n\u003cli data-section-id=\"seoki8\" data-start=\"14357\" data-end=\"14422\"\u003eplacing the outdoor unit in an area where snow accumulates;\u003c\/li\u003e\n\u003cli data-section-id=\"1tttasu\" data-start=\"14423\" data-end=\"14468\"\u003eignoring clearance around the condenser;\u003c\/li\u003e\n\u003cli data-section-id=\"7hfjmt\" data-start=\"14469\" data-end=\"14513\"\u003enot coordinating the electrician early enough;\u003c\/li\u003e\n\u003cli data-section-id=\"fknrvy\" data-start=\"14514\" data-end=\"14573\"\u003eomitting necessary accessories in the initial price;\u003c\/li\u003e\n\u003cli data-section-id=\"14jix4m\" data-start=\"14574\" data-end=\"14638\"\u003ecomparing quotes that do not include the same work.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"14640\" data-end=\"14979\"\u003eAt AirGreen, we prioritize transparent pricing. Before work begins, we provide a clear final offer to avoid unforeseen additions. This is essential with a product like the \u003cstrong data-start=\"14840\" data-end=\"14880\"\u003eLGRED 42,000 BTU cassette ceiling unit\u003c\/strong\u003e, as installation quality directly influences performance, comfort, and durability.\u003c\/p\u003e\n\u003ch3 data-section-id=\"r39j10\" data-start=\"14981\" data-end=\"15033\"\u003eRecommended maintenance to preserve performance\u003c\/h3\u003e\n\u003cp data-start=\"15035\" data-end=\"15280\"\u003eA ceiling cassette must remain clean to function properly. In a commercial space, office, or high-traffic area, filters can become loaded more quickly than in a residence. A good \u003cstrong data-start=\"15244\" data-end=\"15262\"\u003eHVAC maintenance\u003c\/strong\u003e plan should include:\u003c\/p\u003e\n\u003cul data-start=\"15282\" data-end=\"15670\"\u003e\n\u003cli data-section-id=\"kl5ys7\" data-start=\"15282\" data-end=\"15315\"\u003eregular filter cleaning;\u003c\/li\u003e\n\u003cli data-section-id=\"ikwvv0\" data-start=\"15316\" data-end=\"15356\"\u003egrille and vane inspection;\u003c\/li\u003e\n\u003cli data-section-id=\"2qnvrr\" data-start=\"15357\" data-end=\"15409\"\u003edrain and condensate pump verification;\u003c\/li\u003e\n\u003cli data-section-id=\"1t1oi1y\" data-start=\"15410\" data-end=\"15469\"\u003echecking operating pressures and temperatures;\u003c\/li\u003e\n\u003cli data-section-id=\"1vlbuur\" data-start=\"15470\" data-end=\"15519\"\u003eoutdoor unit inspection before winter;\u003c\/li\u003e\n\u003cli data-section-id=\"aedisl\" data-start=\"15520\" data-end=\"15580\"\u003eclearing snow and debris around the condenser;\u003c\/li\u003e\n\u003cli data-section-id=\"u3n1ds\" data-start=\"15581\" data-end=\"15623\"\u003eelectrical connection checks;\u003c\/li\u003e\n\u003cli data-section-id=\"1b1c6i0\" data-start=\"15624\" data-end=\"15670\"\u003ecoil cleaning when necessary.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"15672\" data-end=\"15971\"\u003eNeglected maintenance can increase noise, reduce airflow, decrease dehumidification, and cause protective shutdowns. For a unit of this capacity, a preventive visit is often more cost-effective than an emergency call in the middle of a heatwave or cold snap.\u003c\/p\u003e\n\u003ch3 data-section-id=\"1mcmulo\" data-start=\"15973\" data-end=\"16021\"\u003eWhy choose AirGreen for this LG product\u003c\/h3\u003e\n\u003cp data-start=\"16023\" data-end=\"16549\"\u003eAt AirGreen, we install and maintain \u003cstrong data-start=\"16082\" data-end=\"16135\"\u003eresidential, commercial, and multi-dwelling HVAC systems\u003c\/strong\u003e in Greater Montreal, including \u003cstrong data-start=\"16169\" data-end=\"16181\"\u003eMontreal\u003c\/strong\u003e, \u003cstrong data-start=\"16183\" data-end=\"16192\"\u003eLaval\u003c\/strong\u003e, \u003cstrong data-start=\"16194\" data-end=\"16207\"\u003eLongueuil\u003c\/strong\u003e, the \u003cstrong data-start=\"16212\" data-end=\"16225\"\u003eNorth Shore\u003c\/strong\u003e, the \u003cstrong data-start=\"16230\" data-end=\"16242\"\u003eSouth Shore\u003c\/strong\u003e, and \u003cstrong data-start=\"16249\" data-end=\"16263\"\u003eMontérégie\u003c\/strong\u003e. Our team of experienced refrigeration technicians understands the specific constraints of Quebec buildings: harsh winters, old buildings, irregular suspended ceilings, occupied commercial premises, co-ownership requirements, restricted access, and coordination with other trades.\u003c\/p\u003e\n\u003cp data-start=\"16551\" data-end=\"16927\"\u003eWe are also covered by \u003cstrong data-start=\"16621\" data-end=\"16636\"\u003e$5,000,000\u003c\/strong\u003e in liability insurance, and our \u003cstrong data-start=\"16655\" data-end=\"16677\"\u003eRBQ license #5645-9605-01\u003c\/strong\u003e allows clients to work with a structured and responsible company. Beyond installation, we also offer after-sales service, maintenance, service calls, and support for information related to grants.\u003c\/p\u003e\n\u003cp data-start=\"16929\" data-end=\"17350\"\u003eThe \u003cstrong data-start=\"16932\" data-end=\"16991\"\u003eLG: 3X3 Cassette Ceiling Unit LGRED | 42,000 BTU\u003c\/strong\u003e is an excellent choice when the project requires discrete diffusion, high capacity, good heating performance, and careful integration. However, it merits a thorough analysis before purchase. Properly installed, it can provide stable comfort in spaces where a wall-mounted solution would be too visible, too concentrated, or simply insufficient.\u003c\/p\u003e\n\u003ch3 data-section-id=\"qtmvej\" data-start=\"17352\" data-end=\"17388\"\u003eRequest an AirGreen evaluation\u003c\/h3\u003e\n\u003cp data-start=\"17390\" data-end=\"17778\"\u003eTo get a price, validate eligibility for the \u003cstrong data-start=\"17441\" data-end=\"17465\"\u003eLogisVert grant\u003c\/strong\u003e, confirm sizing, or plan the installation of an \u003cstrong data-start=\"17530\" data-end=\"17556\"\u003eLG 42,000 BTU cassette\u003c\/strong\u003e in \u003cstrong data-start=\"17559\" data-end=\"17571\"\u003eMontreal\u003c\/strong\u003e, \u003cstrong data-start=\"17573\" data-end=\"17582\"\u003eLaval\u003c\/strong\u003e, \u003cstrong data-start=\"17584\" data-end=\"17597\"\u003eLongueuil\u003c\/strong\u003e, on the \u003cstrong data-start=\"17606\" data-end=\"17619\"\u003eNorth Shore\u003c\/strong\u003e, or the \u003cstrong data-start=\"17626\" data-end=\"17638\"\u003eSouth Shore\u003c\/strong\u003e, contact AirGreen. We will propose a clear solution, adapted to the building, budget, and comfort requirements of your space.\u003c\/p\u003e","brand":"LG","offers":[{"title":"Default Title","offer_id":53340600467748,"sku":"KNSCB421A","price":0.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0715\/1694\/6724\/files\/CASSETTEDEPLAFONDr32LGREDMONTREAL_LAVAL_LONGUEUIL_RIVESUD_RIVENORD_ae918696-c84c-4a32-be70-3ac053b6c21c.png?v=1777634901","url":"https:\/\/airgreen.ca\/en\/products\/lg-plafonnier-de-type-cassette-3x3-lgred-42-000-btu","provider":"AirGreen Climatisation \u0026 Chauffage \/ Air Conditioning \u0026 Heating","version":"1.0","type":"link"}