Installation Manual

61601101901

EFF 350 -- fixed airflow used to achieve specified ratings –

no dehumidification airflow reduction. This is nominally 350

CFM/ton, but will vary if a 2--stage outdoor unit is used.

MAXIMUM

-- 400 CFM/ton. No dehumidification airflow re-

duction.

Multistage Heat Pumps Cooling Airflow

COMFORT (default)

-- cooling airflow is varied depending on

humidity and temperature demands settings. This selection en-

ables the full dehumidify and comfort capabilities of the system.

When COMFORT is not selected, the unit will not run reduced

airflows for dehumidification.

EFFICIENCY

-- Airflow to achieve specific ratings. At maxi-

mum stage, this is nominally 350 CFM/ton, but will vary with

stage and outdoor temperature.

MAXIMUM

-- 400 CFM/ton.

Dehum Airflow

NORMAL (default)

-- When equipment is running to dehu-

midify, the airflow is allowed to adjust to a minimum to satisfy

the d ehumidification call.

HIGH

-- Minimum airflow during the dehumidify mode is in-

creased to reduce duct and register sweating.

Furnace Airflow (Capacity) Limiting

The following settings allow the installer to r estrict the fur-

nace within certain minimum and maximum airflows. These

airflows are converted to capacities. The Min and Max limits

are determined b y the equipment size.

Min CFM (only appears with modulating

furnaces)