Carrier 40VM Series Service Manual

Also see for 40VM Series: Installation and operating instructions Installation and operating instructions Installation and operating instructions Installation and operating instructions

Contents

13LOUVER CONTROL OPERATIONThis control feature allows the user to set the air flow direction by controlling the position of the louver and discrete motor stepsas shown below. The range of air flow direction varies based on the indoor unit style.Table 11 —Louver Position (40VMC, F, W)Table 12 —Louver Position (40VMU, 40VMI)* 40VMU048---3 onlyOPERATION OF FAN IN AUTO FAN MODEWhen the fan speed mode is set to Auto, the fan will run at constant speed for three minutes before determining the range basedon supply air and evaporator pipe temperature. Fan speed control is based on the following tables:Table 13 —Fan Speed Operation in the First Three MinutesT1: Room or return air temperatureT2A: Inlet pipe temperatureTs: Target room temperatureTc: Condensing temperatureta: Air side temperaturetr: Refrigerant side temperatureINDOORUNIT OPERATIONMODEPOSITION SWING FACTORYSETTING STOPP0 P1 P2 P3 P4 P0 P440VMF Cooling 15 30 40 50 60 15 60 P2 0Heating 15 30 40 50 60 15 60 P4 040VMC Cooling 200 230 260 290 318 200 318 P2 0Heating 200 230 260 290 318 200 318 P4 040VMW Cooling 61 65 75 85 93 61 93 P1 0Heating 68 80 90 100 110 68 110 P4 0INDOOR UNIT OPERATIONMODEPOSITION (VERTICAL ANGLE) SWING FACTORYSETTINGSTOP RANGE OFHORIZONTALANGLEP0 P1 P2 P3 P4 P0 P4 VERTICALANGLE HORIZONTALANGLE40VMU Cooling 50 57 65 72 80 50 80 P3 0 32 [5,64]Heating 80 87 95 105 110 80 110 P4 0 32 [5,64]40VMU * Cooling 55 62 70 77 85 55 85 P3 0 60 [10,100]Heating 80 87 95 105 110 80 110 P4 0 60 [10,100]40VMI (05, 07, 09, 12) Cooling 25 43 60 70 80 25 80 60 0 / /Heating 25 43 60 70 80 25 80 60 0 / /40VMI (15, 18, 24) Cooling 25 43 60 70 80 25 80 60 0 48 [3, 93]Heating 25 43 60 70 80 25 80 60 0 48 [3, 93]P0P1P2P3P4P5RANGE COOLING OPERATION ΔTR < 21.6°F 21.6°F ≥ ΔTR < 36°F ΔTR ≥ 36°FΔTA = T1 – TS ΔTR = TS - T2A1 Δta ≥ 4.5°F High High High2 2.7°F ≥ Δta < 4.5°F High High Medium3 0.9°F ≥ Δta < 2.7°F High Medium Medium4 Δta < 0.9°F Medium Medium MediumRANGE COOLING OPERATION ΔTR < 21.6°F 21.6°F ≥ ΔTR < 36°F ΔTR ≥ 36°FΔTA = T1 – TS ΔTR = TC - TS1 Δta ≥ 4.5°F High High High2 2.7°F ≥ Δta < 4.5°F Medium Medium Medium3 0.9°F ≥ Δta < 2.7°F Medium Low Medium4 Δta < 0.9°F Medium Low Low