MicroMetl ECD-SRT05TA-D2 Series Скачать руководство пользователя

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Fig. 4 - Typical Outdoor-Air Section

Access Panel Locations

Compressor

Access Panel

Outdoor-Air Opening and

Indoor Coil Access Panel

Filter Access Panel

Fig. 5 - Hood Assembly

Hood Top and

Side Assembly

Hood Divider

Fig. 6 - Filter Installation

Hood Top

Filter Clip

Outside Air

Cleanable

Aluminum Filter

Barometric

Airflow

Hood

Divider

ECONOMIZER P/N

SHIP WT.

ECD-SRT12TA-D2

33.37” 17.43” 19.05” 29.5”

55 lb

ECD-SRT34TA-D2

40.37” 22.28” 24.48” 36.27”

80lb

ECD-SRT05TA-D2

52.92” 27.03” 33.41” 49.92”

98lb

NOTE:

The ECD-SRT05TA-D2 Series hood has 2 aluminum

filters and a hood filter divider installed between the filters. (See

Fig. 6A.)

Fig. 7 - Ultra Low Leak Economizer Installed in

HVAC Unit

Fig. 6A - Hood for Extra Large Cabinet

Hood Filter

Divider

HVAC Unit Filters

Insert

Screw in

Flanges

Wiring

Harness

Economizer

Fig. 8 - Rear Ultra Low Leak Economizer Flange

Installation (Small and Large Cabinet)

Unit Filter

Rack

Unit Base

Hold Down Tab

Rear Flange

Содержание ECD-SRT05TA-D2 Series

Страница 1: ...d Electrostatic discharge can short equipment circuitry Ensure that you are properly grounded before handling the unit Economizer Package Unit Chassis 48 50TC 48 50HC 48 50LC 50TCQ 48 50HCQ Carrier Bryant ICP Carrier Bryant ICP Carrier Carrier Bryant ICP Carrier Bryant ICP ECD SRT12TA Chassis 1 48 50TC A04 A05 A06 B04 B05 B06 580J 558J 04A 05A 06A 04G 05G 06G RGS RAS 036 048 060 48 50HC A04 581J 5...

Страница 2: ...pin jumper plug from the unit wiring harness located in the upper left corner of the unit Insert the Ultra Low Leak Economizer plug into the unit wiring harness Refer to Fig 9 and 10A for wiring details Fig 1 Component Locations Small Economizer Shown WARNING ELECTRICAL SHOCK HAZARD Failure to follow this warning could result in personal injury and or death Disconnect power supply and install lock...

Страница 3: ...ng of all outside dampers Warning Any circumstance which involves emergency shutdown should be carefully studied and written into company policy Please adhere to all applicable electrical local and fire emergency codes before integrating emergency devices into your HVAC scheme We recommend the MicroMetl 9901 0091 Smoke Detector Optional Power Exhaust MicroMetl carries a large variety of Power Exha...

Страница 4: ...ECD SRT12TA D2 33 37 17 43 19 05 29 5 55 lb ECD SRT34TA D2 40 37 22 28 24 48 36 27 80lb ECD SRT05TA D2 52 92 27 03 33 41 49 92 98lb NOTE The ECD SRT05TA D2 Series hood has 2 aluminum filters and a hood filter divider installed between the filters See Fig 6A Fig 7 Ultra Low Leak Economizer Installed in HVAC Unit Fig 6A Hood for Extra Large Cabinet Hood Filter Divider HVAC Unit Filters Insert Screw ...

Страница 5: ...unt the sensor in the indoor fan section of the unit see Figure 12 Locate the orange and brown wires in the wire bundle in the indoor fan section Connect these orange and brown wires to the 2 wire harness attached to the Sensor Mixed air default setting is 53 F and can be adjusted from 38 F to 70 F 13 While everything is open install and wire any other accessories and or sensors as applicable and ...

Страница 6: ...6 Fig 10A Typical Wiring Diagram For 1 and 2 Speed Units 2 Speed Diagram Shown If using the OA enthalpy accessory the OAT must be removed Set sensor dip switches See Table 11 48TMHSRSE A20 Harness ...

Страница 7: ...ts 48 50LC 07 12 See 3 Speed Unit Instructions for Complete Diagram NOTES 1 Wires shown in bold are part of harness which is provided with 48 50LC 07 12 3 speed units 2 Harness which is provided with economizer accessory is not used on 3 speed units ...

Страница 8: ...8 Fig 10C 48LCHSRADH A00 Harness for 3 Speed Units 48 50LC 07 12 Provided with 3 Speed Units FIELD ATTACH TO W7220 CONTROLLER CONNECT TO UNIT TERMINAL BOARD CONNECT TO UNIT TERMINAL BOARD ...

Страница 9: ...m in the currently displayed menu 3 Use the and buttons to scroll to the desired parameter 4 Press the Enter button to display the value of the currently displayed item 5 Press the button to increase change the displayed parameter value 6 Press the button to decrease change the displayed parameter value NOTE When values are displayed pressing and holding the or button causes the display to automat...

Страница 10: ...ge DA TEMP _ _ _o F 40 F to 150 F Displays when Discharge Air sensor is connected and displays measured discharge temperature Displays _ _ _o F if sensor sends invalid value if not con nected short or out of range OA TEMP _ _ _o F 40 to 140o F Displays measured value of outdoor air temperature Displays _ _ _o F if sensor sends invalid value short or out of range OA HUM _ _ 0 to 100 Displays measur...

Страница 11: ...V VENTMAX 2 8 V 2 to 10 Vdc or 100 to 9990 cfm increment by 10 Displays only if a CO2 sensor is connected Used for Vbz ventilation max cfm setpoint Displays 2 to 10 V if 3 sensors RA OA and MA In AUTO mode dampers controlled by CFM With 2 speed fan units VENTMAX L low speed fan and VENTMAX H high speed fan settings are required Default for VENTMAX L is 3 2V and VENTMAX H is 2 8V VENTMAX L 3 2 V VE...

Страница 12: ...nical cooling is 2nd stage Allows three stages of cooling 1 economizer and 2 mechanical OFF no Stage 3 cooling SD DMPR POS CLO CLO or OPN Indicates shutdown signal from space thermostat or unitary controller When controller receives 24 Vac input on the SD terminal in conventional mode the OA damper will open if programmed for OPN and OA damper will close if programmed for CLO All other controls e ...

Страница 13: ... actuator if damper is moveable and supply voltage is between 21 6 V and 26 4 V Check actuato count on STATUS menu FREEZE ALARM n a n a Check if outsoor temperature is below the LOW Temp Lockout on setpoint menu Check if Mixed air temperature on STATUS menu is below the Lo Setpoint on Advanced menu When conditions are back in normal range then the alarm will go away SHUTDOWN ACTIVE n a n a AUX2 IN...

Страница 14: ...Each Status item displays in turn and cycles to the next item after 5 seconds Label Type Description Top Left Terminal Block MAT MAT 20k NTC and COM Mixed Air Temperature Sensor Polarity insensitive connections OAT OAT 20k NTC and COM Outdoor Air Temperature Sensor Polarity insensitive connection S BUS S BUS S BUS Sylk Bus Enthalpy Control Sensor Polarity insensitive connection Bottom Left Termina...

Страница 15: ...ceeds 69 F Differential Dry Bulb 1 3 5 11 16 Outdoor air temperature exceeds return air temperature 2 4 10 Outdoor air temperature exceeds return air temperature minus 2 F 6 8 9 Outdoor air temperature exceeds return air temperature minus 4 F 7 Outdoor air temperature exceeds return air temperature minus 6 F Fixed Enthalpyb Fixed Dry Bulb All Outdoor air enthalpy exceeds 28 Btu lb of dry airb or O...

Страница 16: ...gized and HL high limit when a compressor stage is energized Table 10 provided the values for each boundary limit Enthalpy control Sensor Configuration The optional Enthalpy Control sensor Part Number communicates with the W7220 Economizer controller on the two wire communications bus and can either be wired using a two pin header or using a side connector This sensor is used for OA enthalpy and r...

Страница 17: ...r fully closed if fan is off If accessory power exhaust is installed the power exhaust fan motors will be energized by the economizer control as the dampers open above the EXH1 SET setpoint and will be energized as the dampers close below the EXH1 SET setpoint Damper movement from full closed to full open or vice versa will take between 1 1 2 and 2 1 2 minutes Heating with Ultra Low Leak Economize...

Страница 18: ... the temperature of air that you want to supply to the space In a commercial building this is between 50 to 55o F 10 to 13o C The mixed are is the mixing of the return air and the outdoor air I am using enthalpy sensors Why did the control ask me to input a dry bulb changeover temperature In the even the humidity sensor in the enthalpy sensors fails the backup algorithm in the control is to defaul...

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