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Aprilaire 1750, Инструкция по установке, безопасности и обслуживанию

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CENTRAL INSTALLATION AND OPERATION

This installation is used when the HVAC equipment conditions the whole home or the area where dehumidification is needed.
Using an Aprilaire Central Dehumidifier in this application, in conjuction with the HVAC system, is the optimum solution for total,
year-round humidity control.

This installation is typically in attic or basement locations within the home. As shown in Figure 3 below, air is pulled from the
return duct, dehumidifed and returned to the supply duct.

1 – Backflow Damper

Duct Work

Thermostat Wire

REQUIRED COMPONENTS

OPTIONAL COMPONENTS

6506 Ventilation Damper

24 VAC Transformer (10 VA minimum) for Ventilation Damper

8052 Outdoor Temperature Sensor

Float Switch

Model 70 Living Space Control

6“ MIN

RETURN
AIRFLOW

SUPPLY

AIRFLOW

6“ MIN

BACKFLOW DAMPER

OPTIONAL
OUTDOOR
AIR INTAKE

AIR CLEANER

COOLING COIL

HVAC UNIT

APRILAIRE

CENTRAL

DEHUMIDIFIER

OPTIONAL N.C.
VENT CONTROL DAMPER
(SEE PAGES 10-11)

FIGURE 3 – DUCTING

90-945

Содержание 1750

Страница 1: ...rcuit is required for proper operation of the dehumidifier If a dedicated circuit is not available do not install unit Dehumidifier must be plugged in directly to an outlet Do not use an extension cord 4 For protection of the compressor unit must be transported and installed in an upright position If the unit was shipped or stored on its side a 24 hour settling period is required before running th...

Страница 2: ...in ventilation feature is designed to be able to meet ASHRAE 62 2 Standard for Ventilation See Ventilation page 10 for more details on this feature LOCATION NOTES Design Airflow 1750 275 CFM 0 6 in w c 1770 500 CFM 0 6 in w c Filter MERV 8 Filter Cabinet Insulation 1 foil faced EPS insulation Inlet Air Operating Conditions 40 F to 105 F Ambient Air Operating Conditions 40 F to 150 F This product m...

Страница 3: ...The duct should be capable of handling at least 2 w c pressure All joints and seams must be sealed Design airflow for the 1750 is 275 CFM 0 6 w c for the 1770 it is 500 CFM 0 8 w c This is equivalent to approximately 70 ft for the 1750 or 100 ft for the 1770 of 8 duct on the inlet and outlet side of the dehumidifier Elbows turns and the static pressure of the HVAC equipment will affect the airflow...

Страница 4: ...hin the home As shown in Figure 3 below air is pulled from the return duct dehumidifed and returned to the supply duct 1 Backflow Damper Duct Work Thermostat Wire REQUIRED COMPONENTS OPTIONAL COMPONENTS 6506 Ventilation Damper 24 VAC Transformer 10 VA minimum for Ventilation Damper 8052 Outdoor Temperature Sensor Float Switch Model 70 Living Space Control 6 MIN RETURN AIRFLOW SUPPLY AIRFLOW 6 MIN ...

Страница 5: ... SETUP ON B CONVERTIBLE HVAC FAN WHL HOUSE VENT AUTO A OFF Standard Air Cycling Ventilation OFF OFF OFF See pages 10 11 See pages 10 11 See pages 10 11 OFF OFF OFF OFF ON OFF Standard Air Cycling Ventilation OFF See pages 10 11 See pages 10 11 ON See pages 10 11 See pages 10 11 OFF See pages 10 11 See pages 10 11 OFF See pages 10 11 See pages 10 11 Standard Air Cycling Ventilation OFF See pages 10...

Страница 6: ... Trap included REQUIRED COMPONENTS OPTIONAL COMPONENTS Duct Work 24 VAC Transformer 10 VA minimum for Ventilation Damper Thermostat Wire 6506 Ventilation Damper 8052 Outdoor Temperature Sensor Grilles Normally Closed Condensate Overflow Safety Switch Model 70 Living Space Control RETURN AIRFLOW OPTIONAL OUTDOOR AIR INTAKE AIR CLEANER COOLING COIL TO SUPPLY GRILLE OR TO UNCONDITIONED SPACE HVAC UNI...

Страница 7: ...EM SETUP ON B CONVERTIBLE HVAC FAN WHL HOUSE VENT AUTO A OFF Standard Air Cycling Ventilation OFF OFF OFF See pages 10 11 See pages 10 11 See pages 10 11 ON ON ON OFF ON OFF Standard Air Cycling Ventilation OFF See pages 10 11 See pages 10 11 ON See pages 10 11 See pages 10 11 OFF See pages 10 11 See pages 10 11 OFF See pages 10 11 See pages 10 11 Standard Air Cycling Ventilation OFF See pages 10 ...

Страница 8: ...8 N C Dampers 2 6608 N O Dampers and a 24 VAC Transformer 2 Running Constant fan on will prevent proper function in this mode 2 6508 Normally Closed Power Open Damper 2 6608 Normally Open Power Closed Damper Duct Work 24 VAC Transformer 40 VA minimum Thermostat Wire REQUIRED COMPONENTS OPTIONAL COMPONENTS 6506 Ventilation Damper 24 VAC Transformer 10 VA minimum for Ventilation Damper 8052 Outdoor ...

Страница 9: ... MIN 1 HOUR CYCLE PERIOD 4 3 2 1 ON VENT TIMED HVAC FAN SYSTEM SETUP ON B CONVERTIBLE HVAC FAN WHL HOUSE VENT AUTO A OFF Standard Air Cycling Ventilation OFF OFF OFF OFF OFF OFF ON ON ON OFF ON OFF Standard Air Cycling Ventilation OFF See pages 10 11 See pages 10 11 ON See pages 10 11 See pages 10 11 OFF See pages 10 11 See pages 10 11 OFF See pages 10 11 See pages 10 11 Standard Air Cycling Venti...

Страница 10: ...UTO A OFF 90 969 shown set to 30 minutes VENTILATION AIR CYCLING SETTINGS The Aprilaire Dehumidifier has the option to monitor HVAC heating cooling and fan calls to assure the HVAC fan has operated a predetermined amount of time each 1 2 1 2 or 3 hours The dehumidifier can also open a normally closed damper in an outdoor air intake to ventilate during this predetermined amount of time This feature...

Страница 11: ...o be combined with the fan cycling feature from the dehumidifier provided the outside air temperature is in the acceptable range 0 100 F This will allow the homeowner to receive the proper ventilation year round Note The dehumidifier can control the HVAC fan to provide fan cycling regardless of whether or not an outdoor ventilation duct is installed NORTH EAST OR WEST SIDE OF HOME OUTDOOR TEMPERAT...

Страница 12: ... B The CYCLE TIME dial determines how long during every Cycle Period the damper will open and ventilation will occur The dial can be adjusted from OFF to between 1 to 60 minutes see Figure 14 This will give outdoor air ventilation and HVAC fan operation from 1 to 60 minutes every Cycle Period C Refer to Table 3 to determine the Cycle Time setting based on airflow delivered and airflow required The...

Страница 13: ...osed CONVERTIBLE position This is used for zoned dehumidification The damper DEH terminals are actuated when the HVAC equipment is making a call for heat cool or fan and the dehumidifier is making an internal blower call for air sampling or dehumidification WHL HOUSE position This is used for central dehumidification The damper DEH terminals are actuated any time the dehumidifier is making an inte...

Страница 14: ...s running but no airflow Normally Open Damper was used instead of Normally Closed Damper in backflow Damper needs to be switched Total HVAC system static is higher than 0 8 w c Dehumidifier not adequately dehumidifying Unit will need time to dry materials in home before effectively changing RH Too little airflow through dehumidifier Total HVAC system static is higher than 0 8 w c Compressor is not...

Страница 15: ...h East or West side of the house Not in direct sunlight If the outdoor temperature is below 0 F or above 100 F the damper will remain closed If using the outdoor temperature sensor verify that it is reporting an accurate resistance Remove the Outdoor Temperature Sensor leads from ODT Sensor terminals and check the resistance Compare the reading with the resistance shown in Table 4 The HVAC fan tur...

Страница 16: ...NTILATION OR AIR CYCLING SEQUENCE OF OPERATION If the dehumidifier is providing outdoor air ventilation or air cycling it is monitoring the HVAC equipment to provide the amount of HVAC fan run time that has been set by the Cycle Time during the Cycle Period If an outdoor air damper has not been installed then the dehumidifier is providing air cycling The dehumidifier will monitor the HVAC system a...

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