Geostar GAH022 Скачать руководство пользователя страница 19 | Manualshive

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Geostar GAH022 Скачать руководство пользователя страница 19

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ECM Blower Control

The ECM blower motor is controlled by an interface board installed
in the air handler and allows field selectable CFM settings. The
interface board receives inputs from the thermostat and converts
them to signals used by the ECM motor. There are four different
airflow settings that are field selectable via DIP switches (see
Blower Performance table).

Cooling/Heating settings

The cooling/heating CFM settings determine the normal cooling/
heating CFM when the unit is not in dehumidification mode or
auxiliary heat mode. DIP switches 1 and 2 ‘off’ is the lowest CFM
setting while with DIP switches 1 and 2 ‘on’ is the highest CFM
setting. To prevent air coil freeze up, the lowest CFM setting can
not be used when dehumidification mode is selected. DIP 9 must
be ‘on’ to enable normal airflow settings.

Dehumidification Mode settings

This setting provides for field selection of humidity control (via
setting DIP 9 ‘off’). The cooling airflow settings are determined by
the Cooling/Heating DIP switch settings above. Dehumidification
mode reduces the selected normal cooling CFM by 15%-20%
which increases the moisture removing capability of the heat pump.
To prevent air coil freeze up, the lowest CFM setting can not be
used when dehumidification mode is selected.

Dehumidification Mode (Continuous) – This mode is selected via
setting DIP 9 ‘off’ on the ECM interface board and will be engaged
whenever an ‘O’ input is present. In this mode any time the unit is
operating in cooling mode, it will run at a CFM level 15%-20% lower
than the selected normal cooling CFM.

NOTE:

Do not select dehumidification mode if the lowest Cooling/

Heating airflow level is selected (DIPS 1 & 2 off).

Auxiliary Heat settings - DIP 5 & 6 on the ECM interface board are
used to select the desired CFM in auxiliary/emergency heat mode.
Whenever auxiliary or emergency electric heat is energized this air
flow setting will be used.

ASTON SERIES AIR HANDLER INSTALLATION MANUAL

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Содержание GAH022

Страница 1: ...I N S TA L L AT I O N M A N U A L GEOTHERMAL HEAT PUMPS AFF ORDABLE RENEWABLE CLEAN A S T O N S E R I E S A I R H A N D L E R...

Страница 2: ......

Страница 3: ...tallation Information 5 11 Hydronic Models 12 13 Electrical Data 14 15 Wiring Schematics 16 18 ECM Blower Control 19 Blower Performance Data 20 Dimensional Data 21 24 Unit Startup 25 Replacement Proce...

Страница 4: ...1 3 4 6 7 8 9 10 11 12 Model GAH G Series Air Handler Unit Capacity Refrigeration DX Models with Nominal CFM 022 MBTUH 800 026 MBTUH 925 030 MBTUH 980 036 MBTUH 1225 042 MBTUH 1425 048 MBTUH 1625 060...

Страница 5: ...H026 GAH030 GAH036 GAH042 GAH048 GAH060 Air Coil Total Face Area ft2 m2 Tube outside diameter in mm Number of rows Fins per inch Suction line connection in mm sweat Liquid line connection in mm sweat...

Страница 6: ...glass or constructed of ductboard for the first few feet On systems employing a metal duct system canvas connectors should be used between the unit and the ductwork If air noise or excessive airflow i...

Страница 7: ...eeze It is recommended that the trap material be of a type that will allow for expansion of water when it freezes Drain lines must be in conformance with local codes Air Handler Configuration The air...

Страница 8: ...installed on combustible flooring protect the edges of the floor opening with sheet metal over wrap or other non combustible material 9 Bottom air discharge units should be sealed well to the floor to...

Страница 9: ...is secured to the A coil for shipping The indoor and outdoor compressor section is shipped with a factory charge and the service valves are not to be opened until the line set and air handler have be...

Страница 10: ...actory set 33P609 03 factory set 33P609 05 factory set open 2 turns 33P609 06 open 2 turns Note When installing these air handlers follow the table for initial txv setting Check sub cooling and superh...

Страница 11: ...11 General Installation Information cont Figure 4 Decrease Superheat Open Valve Increase Superheat Close Valve ASTON SERIES AIR HANDLER INSTALLATION MANUAL...

Страница 12: ...n tank to allow room for the heated liquid to expand A system is considered closed when a check valve or backflow prevention valve is installed in the cold water pipe upstream of the water heater Once...

Страница 13: ...6 0 1 4 1 4 1 4 1 2 1 2 1 2 1 2 9 0 2 8 2 6 2 5 2 4 2 4 2 4 2 3 12 0 4 6 4 4 4 2 4 0 4 0 4 0 3 9 15 0 7 0 6 8 6 6 6 0 6 0 5 9 5 8 Water Presure Drop Hydronic Coil Entering Water Temperature F EAT F 10...

Страница 14: ...of Circuit Breaker One and on the L2 side of Circuit Breaker Two The voltmeter should read approximately 0 volts If the meter reads high voltage the aux iliary heat breakers need to be rewired so that...

Страница 15: ...765 single 900 4 0 34 7 40 0 38 7 44 0 48 4 55 0 50 60 042 0 0 7 0 7 0 7 0 8 8 8 8 15 15 9 6 32 765 single 900 7 0 34 7 40 0 41 7 47 0 52 1 58 8 60 60 14 4 49 147 single 1 275 7 0 52 0 60 0 59 0 67 0...

Страница 16: ...iring Optional block DC Voltage PCB traces Internal junction Quick connect terminal Thermal Limit Switch Field wire lug Ground HE PB SW1 Heater element Power block DIP package 10 position Legend N O N...

Страница 17: ...Gry 6 Yel 15 Yel 7 P2 P1 C 1 2 3 4 Gray ER4 NO ER3 NO ER2 NO ER1 NO C 1 2 3 4 HE3 TS3 NOTE 2 Grn 9 Air Handler 5kW Electric Heat Thermostat R C Y1 O W Y2 Transformer G Grn 2 3 4 5 1 Blk Wh Yel 24V 20...

Страница 18: ...Yel 22 P2 Gray ER4 NO NOTE 2 ER3 NO ER2 NO ER1 NO C 1 2 3 4 C 1 2 3 4 P1 PNK 19 Pnk 23 Pnk 27 HE4 TS4 Pnk 18 Air Handler w 15kW Electric Heat Thermostat R C Y1 O W Y2 Transformer G Grn 2 3 4 5 1 Blk W...

Страница 19: ...r field selection of humidity control via setting DIP 9 off The cooling airflow settings are determined by the Cooling Heating DIP switch settings above Dehumidification mode reduces the selected norm...

Страница 20: ...0 580 440 On Off 975 0 50 1 2 Off Off 800 630 425 Off Off 900 036 0 50 1 2 On On 1300 1025 760 Off 1105 871 760 On On 1300 0 50 1 2 Off On 1225 950 685 Off 1041 808 685 Off On 1250 0 50 1 2 On Off 115...

Страница 21: ...2 0 3 9 26 7 39 4 Condensate is stainless steel 3 4 O D tube Discharge flange is field installed and extends 1 25 4 mm from cabinet 026 060 Refrigerant Water Connections GG HH II S T U V W X Y Z AA B...

Страница 22: ...ondensate is stainless steel 3 4 O D tube Rev 4 28 14 Discharge flange is field installed and extends 1 25 4 mm from cabinet Refrigerant Water Connections 026 060 CC DD EE S T U V W X Y Z AA BB 1 cond...

Страница 23: ...2 7 9 2 0 3 9 26 7 39 4 Condensate is stainless steel 3 4 O D Discharge flange is field installed and extends 1 25 4 mm from cabinet 026 060 Refrigerant Water Connections GG HH II S T U V W X Y Z AA B...

Страница 24: ...2 4 Condensate is stainless steel 3 4 O D Rev 8 15 14 Discharge flange is field installed and extends 1 25 4 mm from cabinet Refrigerant Water Connections 026 060 CC DD EE S T U V W X Y Z AA BB 1 cond...

Страница 25: ...coil should be cleaned before startup A 10 percent solution of dishwasher detergent and water is recommended for both sides of coil A thorough water rinse should follow Maintenance Filters Filters mus...

Страница 26: ...ronic Models 022 R 026 R 030 R 036 R 042 R 048 R 060 R 026 H 036 H 048 H 060 H Refrigeration Air Coil 61S641 02 61S640 02 61S642 02 TXV 33P609 01 33P609 03 33P609 05 33P609 06 N A ECM Motor Blower Blo...

Страница 27: ...t Up 01 April 2015 MA 5 7 22 24 Updated Hydronic Data 15 Aug 2014 MA 4 6 19 20 Updated Drain Pan 20 May 2014 DS MA All Updated Dimensional Data for New Vertical Condensate Drain 02 May 2014 DS All Upd...

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Страница 30: ...R 410A Size 2 5 Tons Document Type Installation Manual Part Number IM1008HG Release Date 07 15 2015 The manufacturer has a policy of continual product research and development and reserves the right t...

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