DUOTEC AHV200024 Manual del propietario y de instalación - Página 14

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OWNER'S MANUAL INSTALLATION INSTRUCTIONS

Table 6

Airflow Adjust Table

MODEL #

AUX HEAT RANGE (KW/CFM)

VIOLET

Wire

Selection

15kw

AHV08

15 thru 20kw

AHV12

AHV16

AHV20

SEQUENCE OF OPERATION

AHV air handler will supply airflow in a range which is more than twice

the range of a standard air handler. Each air handler size is designed

to provide nominal cooling capacities at 50F evaporator temperature

and the required airflow in order to match with any of four (4) different

air conditioner or heat pump outdoor unit sizes. Table 2 outline the

CFM range for the different AHV air handler.

The blower motor is a true variable speed motor designed to deliver

constant CFM. Constant CFM is valid for systems with total external

static pressure between 0.1 and 1.2 inches water column (25 and

174 Pa).

A. CONTINUOUS FAN

•

Thermostat closes circuit R to G.

•

Blower runs at continuous fan airflow.

B. COOLING MODE - SINGLE STAGE

•

If indoor temperature is above temperature set point and humidity

is below humidity set point, thermostat closes circuits R to G, R

to Y/Y2 and R to O.

NOTE:

For single stage systems, do not use the Y1

terminal.

•

Air handler delivers single stage cooling airflow.

C. COOLING MODE - TWO STAGE

•

First stage (low) cooling: Thermostat closes circuits to R to G, R

to O, and R to Y1.

•

Air handler delivers low stage cooling airflow.

•

Second stage (high) cooling: Thermostat closes circuits to R to

G, R to O, R to Y1 and R to Y/Y2.

•

Air handler delivers high stage cooling airflow.

D. ELECTRIC HEAT HEATING MODE

•

Thermostat closes circuit R to W/W1, or W2.

•

Air handler delivers the selected electric heat airflow.

E. HEAT PUMP HEATING MODE - SINGLE STAGE

•

Thermostat closes circuits R to G and R to Y/Y2.

NOTE:

For single stage systems, do not use the Y1

terminal.

•

Air handler delivers single stage heat pump heating airflow.

F. HEAT PUMP HEATING MODE - TWO STAGES

•

First stage (low) heating: Thermostat closes circuits R to G and

R to Y1.

•

Air handler delivers low stage heating airflow.

•

Second stage (high) heating: Thermostat closes R to G, R to Y1

and R to Y/Y2.

•

Air handler delivers high stage heating airflow.

10kw

5kw

10kw

5kw

25kw

5 thru 20kw

25kw

5 thru 20kw

Table 7

MODEL #

BLUE Wire

Selection

AHV08

036

AHV12

048

AHV16

060

AHV20

060

G. HEAT PUMP HEATING WITH AUXILIARY ELECTRIC

HEAT

•

Thermostat closes circuits R to G, R to Y/Y2 and/or R to Y1 with

R to W/W1 or W2 (and R to O in the case of defrost).

If the thermostat calls for electric heat when the heat pump is

operating in heating or defrost, the motor will modify the airflow if

necessary. The motor will provide an airflow which is safe for the

operation of the electric heat. That airflow is the greater of the heat

pump heating airflow and the electric heat only airflow.

CAUTION

PROPERTY DAMAGE HAZARD

Failure to follow this caution may result in property

damage.

A field fabricated auxiliary drain pan, with a separate drain

is REQUIRED for all installations over a finished living

space or in any area that may be damaged by overflow

from a restricted main drain pan. In some localities, local

codes require an auxiliary drain pan for ANY horizontal

installation.

CARE AND MAINTENANCE

The system should be regularly inspected by a qualified service

technician. Consult the servicing dealer for recommended frequency.

Between visits, the only consumer service recommended or required

is air filter maintenance and condensate drain operation.

AIR FILTER

Inspect air filters at least monthly and replace or clean as required.

Disposable type filters should be replaced. Reusable type filters may

be cleaned by soaking in mild detergent and rinsing with cold water.

The frequency of cleaning depends upon the hours of operation and

the local atmospheric conditions. Install filters with the arrows on the

side pointing in the direction of air flow. Clean filters keep unit

efficiency high.

LUBRICATION

The bearings of the blower motor are permanently lubricated.

CONDENSATE DRAINS

During the cooling season check the condensate drain lines to be

sure that condensate is flowing from the primary drain but not from

the secondary drain. If condensate ever flows from the secondary

drain, the unit should be promptly shut off and the condensate pan

and drains cleaned to insure a free flowing primary drain.

DUOTEC AIR HANDLER: AHV

Outdoor Unit Size

OUTDOOR UNIT SIZE (BTU)

030

024

036

030

048

042

048

042

018

024

036