3.3除霜控制
冬季机组做热泵运行时，特别是当环境温度接近0℃或低于0℃时，机组将出现结霜状况。除霜时采用互锁控制，避免温度波动过大，即系统1进入除霜时，系统2不能同时进入除霜，系统3进入除霜时，系统4不能同时进入除霜；除霜时投必要的电加热。当机组进入制热工况后，低温低压的制冷剂进入翅片换热器，盘管温度不断下降，吸气温度也随着下降，当盘管温度下降到设定值时，并且除霜周期已到，plc控制四通换向阀换向进入除霜模式，同时停止冷凝风机，启动电加热器；当蒸发器盘管温度上升到设定值，或除霜执行时间到达设置的zui长除霜时间，四通阀换向，除霜结束，电加热停止运行，机组又进入制热工况，如此循环下去。
备货，备货，降降降，火火火，火火火……
备货，备货，降降降，火火火，火火火……
——————————————————————————————————————
公司名称：厦门泰尼电气有限公司
：小廖（销售代表）
：
传真号码：（麻烦备注01008收）
号码:
：
诚信经营，质量为首，诚信*，泰尼电气小廖竭诚为您服务！！！
———————————————————————————————————————
PALMGREN 13636PDAPH ACCUMET PALM PH/ MV METER 146042
CARRIER 19DK66021 PREVENT KIT FOR:19DK-SERIES 84474
BRINKMAN LAB SYSTEMS 015677104/09548120 SAFETY SHIELD 1
NORDYNE C5BHE48CC 4 TON AC/HP MULTI-POSITION CASED A CO
HONEYWELL Y8835A1028 ENVIRAZONE HEAT AND COOL NETWORK T
VULCAN AUO250B IMMERSION HEATER 5000 WATTS 162401
JACUZZI ? G145969 60" OYSTER BATHTUB WITH LEFT HAND
JACUZZI ? G150958 60" ALMOND SKIRTED BATHTUB RIGHT
LABNET INTERNATIONAL INC C02523GF ANGLE ROTOR 146048
TRANE 2TEC3F42C1000AA 3.5 TON UPFLOW/HORIZONTAL AIR HAN
TRANE BAYPWRX017B 460:VOLT POWER EXHAUST 3/4 HP 39817
WINSMITH 930MWN5LR132-B14/6KN45 METRIC SPEED REDUCER 5:
WINSMITH 935/6KN47 SPEED REDUCER, 5:1, C-FACE MOUNTING
WINSMITH 930MWN10LR100-B5/6KN39 METRIC SPEED REDUCER 10
USEM K06-G695-M/3N798 CLOSE COUPLED PUMP 10 HP 3-PHASE
TRANE BAYCO2K002B CO2 SENSING KIT 166075
TOTAL FIRE GROUP FIRE FIGHTERS TAILCOAT GSANAY000 21XL
HEATCRAFT CCL054D33 5,400 BTU 2 FAN UNIT COOLER 208-230
LYON DD115 CABINET 82"H 36"W 24"D 4 SHELVES 146498
THERMO SCI 72-312-230 SIMON VARISTALIC PUMP W/RE 145872
SHIMADZU SCIENTIFIC NC9179784 SPECTROPHOTOMETER 146077
WILMOD LABGLASS DIRECT DRIVE MOTOR 115V DEL/BP39009100
NORDYNE B5BM-T49K-C/NOR904279D 4 TON MULTIPOSITION FAN
LENNOX G60DFV-60C-110 110,000 BTU DOWNFLOW 2-STAGE NATU
ALLIANCE SPR047B3RPA 4 TON SCROLL AC/HP COMPRESSOR R22
CINCINNATI FAN 1500S/3Z574 1-1/2 HP FUME/SMOKE EXHAUSTE
Aqua Logic DCDS-2-WC 1/5HP DC DELTA-STAR IN-LINE WATER-
RHEEM RXHM-AB74H SINGLE STAGE MIXING BOX AIR ECONOMIZER
TOTALINE TEST KIT MULTIMETER DIGITAL 135/C4 87272
JACUZZI H530969 60 x 36 OYSTER FIBERGLASS BATHTUB 16061
CARRIER 19C471042 CHILLER RING 152673
CONTROL TECHNIQUES SE33200550 7.5 HP AC DRIVE 156837
TRANE BAYECON104A ECONOMIZER AND RAIN HOOD 166065
EMERSON DD06/49A4601 10 HP ELECTRIC MOTOR 230/400 VOLT
MI-T-M GC-1502-0ME1/3WB87 COLD WATER PRESSURE WASHER 2
HAIER HR24D2VAR 2 TON AIR CONDITIONER HEAT PUMP 13 SEER
PROTECH/RHEEM AS-61805-35 8 CELL HEAT EXCHANGER 166908
BERKO CPLAM4375-2T 5120btu 4'PEDESTAL CONVECTION HEATER
TRANE KBACT00003C THERMOSTAT-VER.6-24 VAC 44296
SQUARE D 2CN47/5S40F GENERAL PURPOSE TRANSFORMER 5 KVA
VESTIL SPS3-2848/4ZD46 STEEL STOCKPICKER TRUCK 151910
CARRIER 16JB660028 ELECTRONIC CONTROL KIT 152619
MITSUBISHI MSZ-GA24NA 2 TON INDOOR MINI-SPLIT HEAT PUMP
ELKAY PSDKAD2517VRC CLASSROOM DRINKING FOUNTAIN SINK 16
CARRIER 17FA4022624 OIL RESERVOIR 152593
EMERSON CA35/5N315 10HP ELECTRIC MOTOR 230/460 VOLT 176
REZNOR F25-E/RZF02500004 25,000 BTU NATURAL GAS UNIT HE
YORK AHP48D3XH21A 4 TON AC/HP MULTI-POSITION FAN COIL 2
ALLTECH AGILENT 763953-902 ZORBAX EXTENDER C-18 145844
CARRIER 17FA402-1343 BALANCING PISTON THREADED 152590
MTI WRO7236E WHIRLPOOL BATHTUB WITH PUMP 162321
WINSMITH 926MDSN30DLR90-B1425/6KM46 METRIC SPEED REDUCE
WINSMITH 926MDSN15DRL90-B1425/6KM62 METRIC SPEED REDUCE
WINSMITH 926MWSS072XODN/6KM55 METRIC SPEED REDUCER 20:1
WINSMITH 926MDSN5DLR100-B1425/6KM79 METRIC SPEED REDUCE
HAIER HC30D2VAE 2-1/2 TON SPLIT-SYSTEM AIR CONDITIONER
BLANCHARD-NESS ST-431H/ST431H 4,300 BTU SLIM TOPPER 3 F
WINSMITH 926MDSN60DLR80-B1425/6KM25 METRIC SPEED REDUCE
KOHLER K-1113-RA-96 WINDWARD 60X42 INTEGRAL APRON BATHT
MAAX/AKER 141055-R-000 CORNER SHOWER 156704
CRANE 6034STE5.295 BATH AND SHOWER DOORS/TEMPERED GLASS
ARCTIC CIRCLE ES330J HORIZONTAL ROOFTOP EVAPORATOR COOL
ASPEN ACB60E44245T005 5 TON AC/HP HORIZONTAL CASED A CO
DAYTON 1/4 HP 18"FAN CIRCULATOR 115/230V 1725:RPM 90818
3.4加湿器控制
送风机启动后，当室内相对湿度低于设定值时，加湿器按比例投入。若选用电极加湿器，则在加湿器上配有加湿控制板，能自动进行进、排水控制，为方便用户使用，在plc还加上加湿器手动排水和定时排水控制。
