McQuay PDHA Especificaciones descargar pdf (Pagina 15)

Catalog 1300-1 / Page 15 of 42

Applied 16" × 42" Chassis Common Features

Digital Touchpad Control

The PDAC/PDHP Standard Touchpad Control is

used to control both an integral air conditioner and

a source of heat. The user will by default control

the electronic controller via the touchpad. The user

can select with a jumper for the unit to receive

commands from a remote thermostat.

Standard (Non-Programmable) Dgital Touchpad

• Provides 5-selectable modes of operation:

Sleep, Cool, Cool/Dry, Fan, Heat

• Temperature can be displayed in Fahrenheit

(default) or Celsius

Inputs And Outputs

• Indoor coil sensor, (ICS)

• Outdoor coil sensor, (OCS)

• Indoor air sensor, (IAS)

• Outdoor air sensor, (OAS)

• Remote thermostat, T’STAT (RCBYWG)

• Power supply: (24VAC)

• Line voltage input, (L1, L2)

• Indoor fan standby voltage, (L1STB L2STB)

• Control selection: (LUI, T’STAT

• Model selection: (AC/E, HP, HP/E)

• Time delay bypass, (TEST)

• Indoor off fan cycle: (FAN, OFF CYCLE–10,

20, 30, 1 HR)

Outputs

• Compressor output, COM

• Indoor fan, BLOWER LO, HI

• Outdoor fan, OUTDOOR FAN

• Electric heater, ELE

• Reversing valve, REV VALVE

Keys And Indicators Labels

ON/OFF, FAN SPEED, MODE

7 Push Buttons

FAN MODE, SLEEP

Temp buttons: for

Temp UP and for Temp DOWN

9 LED Indicators

SLEEP, COOL, COOL/DRY, FAN,

HEAT, HIGH, LOW, CYCLE, CONT.

LED 2 Digit Displays No Label

Display Function Legend

Tr = Room Temperature

hI = High Room Temperature

Lo = Low Room Temperature

LA = Low Ambient Lockout

rT = Remote Thermostat Control

tP = Touchpad Control

t = Time

Ts = Temperature Setpoint

Rf = Room Freeze Condition

CF = Coil Freeze Protection

F = Fahrenheit

C = Celsius

LC = Control Lockout Mode

Remote Thermostat Control

The remote thermostat can be any thermostat

that can interface with an electronic thermostat via

RCBWYG terminals. The Control Selection jumper

must be in T’STAT position. During a call the

remote thermostat will pass R back to the controller

on a respective terminal. The push buttons on the

touchpad become inactive in the remote thermo-

stat mode. However, the control pad LED display

will indicate the mode of operation, and the room

temperature.

Note:

In terms of outputs, there are two types of thermostats:

relay contacts and solid state.

If you open the thermostat and don’t see relays then it

must be solid state.

Manufacturers of solid state output thermostats include

loading resistors on their installation kits. They are of 560

Ohm and 3W value. These resistors are meant to load ther-

mostat solid state outputs in order for the output voltage to be

either 0 or 24VAC, i.e. no oating voltage. These resistors are

connected from W, Y, G to common (C), respectively.

You can wire any type of 24Vac thermostat straight into

the REMOTE T’STAT connector of PTAC control boards,

667997101 and 667997201 (Basic and Premium models) and

the control boards will recognize the signals from them.

9- LED

Indicators

LED

2-Digit Display

7- Push Buttons

1 2 ... 10 11 12 13 14 15 16 17 18 19 20 ... 41 42

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McQuay PDHA Especificaciones Pagina 15

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