ECR International ENVIROair PTAC Series Installation, Operation & Maintenance Manual Download Page 7

CONTROL PANEL OPERATION  

The control panel keypad will look like the following 

Fig.1. For some models with REMOTE SIGNAL RECEPTOR, 

the unit can be controlled by the control panel alone or by the 

remote.  NOTE: Some models do not have REMOTE SIGNAL 

RECEPTOR.

POWER 

-

Press the POWER button to turn the unit on or off.

When the unit is on,the power indicator light will be

green.When the unit is off,the light will go out.

MODE

-

Push this button to cycle through the modes from COOL-

HEAT-FAN-COOL.The indicator light beside the “MODE”

option will illuminate, identifying the mode selected.

- COOL:The range of set temperature is 17°C/62°F

~30°C/86°F.Cooling begins automatically when the

room temperature is above the set point,and stops
when the room temperature is 2°C(4°F) below the

set point.But the compressor will run 5 minutes at least in

COOL mode before stoping. The fan runs in continuous

mode.

- HEAT:The range of set temperature is 17°C/62°F

~29°C/84°F. For heat pump models,the unit can

alternate to run between in reverse cycle heat mode and

electric heater mode according to the difference between

the setting temperature and the room temperature.The

fan motor cycles on and off with the compressor and

electric heater.                                NOTE:

The reverse cycle and electric heater cannot be run at the

same time. In following cases, it is normal that the reverse

cycle does not operate.

1.When the outdoor temperatrue is lower than

4°C/40°F or the room temperature falls to

4.5°C/8°F below the set point temperature.

2.There is a 3-minute minimum compressor run time at

any setting to prevent short cycling. The indoor fan

motors starts before the compressor and stops after the

compressor cycles off.

3.When frost builds up to the evaporator coils, the unit will

defrost automatically and the compressor will cycle off.

- FAN:Fan operation only without heating and cooling.

6  

UP/DOWN BUTTONS (+/-)

-

Push the UP (or DOWN) button to increase (or

decrease) the set temperature of the unit in cooling or

heating mode.The temperature can be set by

increments of 1°C (1°F).The setting temperature

appears in the display.

NOTE:Press and hold  

“+” 

and 

“-” 

buttons together for 3

seconds will alternate the temperature display between “°C”

&”°F” scale.

FAN (FAN SPEED)

-

Every time you push this button,the fan speed

cycles through the settings as follows:HIGH-MED- 

LOW-HIGH.

DISPLAYS:  

-

Shows the set temperature in °C or °F. While on

Fan only mode,it shows the room temperature.

Control code (on some models):

LC  

-  

Pads on the control panel is not available.The unit 

can be setted by using wire cotroller only.  

Error  codes:  

AS-  

Room temperature sensor error;  

ES-  

Evaporator temperature sensor error;  

CS-  

Condenser temperature sensor error;  

OS-  

Outside temperature sensor error;  

HS-  

Exhaust temperature sensor error;  

NOTE:When error occurs,unplug the unit and plug 

it back in.If error repeats, call for service. 

Other codes:  
LO-  

Room temperature is lower than 0°C/32°F;  

HI-  

Room temperature is higher than 37°C/99°F.  

NOTE

:  

All the illustrations in this manual are 

for explanation purpose only. Your air 

conditioner may be slightly different.  

The actual shape shall prevail. 

NOTE:

This air conditioner is designed to be 

operated under condition as follows:  

Note: Performance may be reduced outside of these 

operating temperatures.  

Fig.1 

NOTE: If the unit has DIP SWITCHES feature, the temperature 

range can be set/controlled by the DIP SWITCHES.  See “DIP 

SWITCHES CONFIGURATIONS” on page 8 for details.

Cooling 

operation

Heating 

operation

Outdoor temp:

18-43°C/64-109°F 

Indoor temp:

17-32°C/62-90°F

Outdoor temp:

-5-24°C/23-76° F

Indoor temp:

0-27°C/32-80°F

Summary of Contents for ENVIROair PTAC Series

Page 1: ...onditioner Heat Pump Installation Operation Maintenance Manual ECRinternatio11 J A Family of Heating Cooling Brands l ENVIROair ECR International Inc 2201 DwyerAvenue Utica New York 13501 Phone 800 325 5279 Web enviromaster com PN 615000151 REV B 09 2015 ...

Page 2: ...hooting tips If you review our chart of Troubleshooting Tips first you may not need to call for service at all CAUTION If the supply cord is damaged it must be replaced by the manufacturer its service agent or similarily qualified persons in order to avoid a hazard the appliance shall be installed in accordance with national wiring regulations Do not operate your air conditioner in a wet room such...

Page 3: ...nd electric shock WARNING Do not operate or stop the unit by inserting or pulling out the power plug It may cause electric shock or fire due to heat generation Do not damage or use an unspecified power cord It may cause electric shock or fire If the power cord is damaged it must be replaced by the manufacturer or an authorized service centre or a similarly qualified person in order to avoid a haza...

Page 4: ... shock or damage Ensure the appliance sleeve and unit are not damged due to prolonged exposure to weather If sleeve is damaged unit may cause property damage or personal injury Do not place heavy object on the power cord and ensure that the cord is not compressed Failure to follow these instructions may cause fire or electric shock Use caution when unpacking and installing Sharp edges could cause ...

Page 5: ... This information can be found on the serial plate which is located on the side of the cabinet and behind the grille Be sure the air conditioner is properly grounded To minimize shock and fire hazards proper grounding is important The power cord is equipped with a three prong grounding plug for protection against shock hazards Your air conditioner must be used in a properly grounded wall receptacl...

Page 6: ...e unit is designed to give a minimum of three minutes to have a time of equalizing the refrigerant pressures for optimizing cycling Memory The unit has memory If power is lost all of the control settings mode fan speed on off and configuration are remembered So when power is restored the unit will start back up in the mode and configuration it was in when power was lost Automatic Evaporator Freeze...

Page 7: ...s off 3 When frost builds up to the evaporator coils the unit will defrost automatically and the compressor will cycle off FAN Fan operation only without heating and cooling 6 UP DOWN BUTTONS Push the UP or DOWN button to increase or decrease the set temperature of the unit in cooling or heating mode The temperature can be set by increments of 1 C 1 F The setting temperature appears in the display...

Page 8: ...CONTROL PANEL OPERATION CONTINUED THIS UNIT IS CONTROLLED BY WALL MOUNTED THERMOSTAT 7 ...

Page 9: ...select set point DOWN UP 3 F 80 F 17 C 27 C range DOWN DOWN 68 F 75 F 20 C 24 C S6 Fan Continuous Run for Heating Fan Cycle for Heating S Fan Continuous Run for Cooling Fan Cycle for Cooling S9 Use some types of wall Use PTAC other Wall you can consult with the sales agency or manufacturer Thermostat Thermostat for details NOTE on heating mode the setting temperature can not be higher than 29 C 84...

Page 10: ...all thermostat Installation instruction of some types of wall Thermostat you can Consult with the sales agency or manufacturer for details Pull the dip switch to the DOWN OFF position as shown below 9 Insert the wire connector of the wall thermostat into the relevant terminal according to different shapes as shown below Term inal of some types of wall thermostat Installation instruction of PTAC ot...

Page 11: ......

Page 12: ...nge of the sleeve to secure the new air conditioner To avoid vibration and noise make sure the unit is installed securely and firmly When installing the sleeve make certain there is nothing within 20 of the back that would interfere with heat radiation and exhaust air flow See Fig 2 COOLED AIR INTAKE AIR PREPARATION OF SLEEVE ASSEMBLY optional Refer to the installation instruction of sleeve assemb...

Page 13: ...INSTALLATION CONTINUED 12 ...

Page 14: ...tdoor side of unit should be checked regularly Unit will need to be removed to inspect dirt build up that will occur on the inside of the coil If clogged with dirt and soot coil should be professionally cleaned Clean inside and outside of outdoor coils regularly NOTE Never use a high pressure spray on coil Keeping filters clean will Decrease cost of operation Save energy Prevent clogged indoor coi...

Page 15: ...eople make room uncomfortable Close vent door Check dipswitch settings for desired comfort Wait approximately 3 minutes for compressor to start DISPLAY HAS STRANGE NUMBERS CHARACTERS ON IT The unit may be in a protection mode The unit may be set for C instead of F UNIT MAKING NOISES Clicking gurgling and whooshing noises are normal during operation of unit WATER DRIPPING OUTSIDE If a drain kit has...

Page 16: ...The design and specifications are subject to change without prior notice for product improvement Consult with the sales agency or manufacturer for details 16120300A2070 ...

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