Carrier 62E Uživatelský manuál stáhnout pdf (Strana 16)

LEGEND *Sponsored by ASHRAE (American Society of Heating, Refrigerating,

and Air Conditioning Engineers).

Energy recovery wheel factory-installed

options

Total recovery energy wheel (standard) — The heat

recovery wheel utilizes a polymer film matrix with a silica

gel desiccant coating to transfer both sensible and latent

energy between the exhaust and ventilation air. The silica

gel desiccant provides optimal latent energy transfer when

the relative humidity of the airstream is above 30%.

Sensible energy recovery wheel — The heat recovery

wheel utilizes a polymer film matrix to transfer sensible

energy between the exhaust and ventilation air.

Total recovery energy wheel with mechanical purge

— A mechanical purge sector with an adjustable angle may

be used to limit the exhaust air transfer (carry-over) to less

than 1%. This option is only available on 3-in. wheel

options.

EzERV control factory-installed options — For appli-

cations where the ERV unit is to be run based on airflow

rates, an EzERV control option should be ordered. With

the EzERV control option, the outside air and exhaust air

volumes are measured and displayed on a LCD (liquid crys-

tal diode) screen located inside the ERV cabinet. The

variable speed motors will modulate to maintain the pro-

grammable airflow set points. Dirty filters and system

effect will not affect the unit airflow, provided the ERV fans

can overcome the system static pressures.

EzERV configurations

Constant volume supply and exhaust with manual

offset air control — The desired outside air cfm is pro-

grammed at the unit control panel. The offset between out-

side air cfm and exhaust air cfm is also programmed. This

allows the user to help control building pressure without

additional building pressure controls.

Modulating supply with CO

control with exhaust

air tracking and manual offset — The outside air

blower(s) are modulated based on return air CO

level. The

user will program minimum/maximum cfm levels and min-

imum/maximum CO

levels inside with the EzERV user

interface. The outside air cfm will now modulate between

the maximum/minimum cfm settings based on the CO

levels inside the building. The offset between outside air

cfm and exhaust air cfm is also programmed and the

exhaust blower(s) will modulate to maintain the differential

set point. A CO

sensor is included with this option.

ITEM OPTION ACCESSORY

Total Energy Recovery Wheel X (Std)

Sensible Energy Recovery Wheel X

Total Energy Recovery Wheel with Mechanical Purge (3-in. wheels only) X

EzERV - Constant Volume Supply and Exhaust with Manual Offset Air Control X

EzERV - Modulating Supply with CO

Control with Exhaust Air Tracking and Manual Offset X

EzERV - Constant Volume Supply, Modulating Exhaust with Building Pressure Control X

EzERV - Modulating Supply with CO

Control, Modulating Exhaust with Building Pressure Control X

BACnet* Communication Interface X

LON Communication Interface X

Pre-Heaters (for frost protection) X

Post-Heaters (for supply air heating) X

Three-Stage Electric Heater Control (for pre-heaters or post-heaters) X

Frost Protection X

ERV Modulating Wheel Frost Protection X

Low Temperature Lockout X

Electrical Disconnects X

ERV Filter Maintenance Indicators X

ERV Wheel and Blower Maintenance Indicators X

Motorized Dampers X

Rooftop Economizer Option, Shutdown ERV X

Rooftop Economizer Option, ERV Provides Power Exhaust Air Relief X

ERV Remote Timer X

Remote Readout X

Roof Curb X

Combination ERV-RTU Roof Curb X

Drop-in Damper Box X

ERV-to-Rooftop Unit Transition (horizontal return RTUs) X

Horizontal Supply and Return ERV Base X

ComfortLink™ Interface Device X

ERV — Energy Recovery Ventilator

RTU — Rooftop Unit

Options and accessories

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