Useful Functions; Installation/Servicing Tools - Toshiba RAS-3M26YAV-E Manual De Instalación

Useful Functions

• For this outdoor unit, the self-diagnosis is possible by using five LEDs (1 Yellow + 4 Red).
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LEDs (D800 to D804) are provided on P .C. board of the inverter.
LED indication
D800 D801 D802 D803 D804
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Installation/Servicing Tools

In the case of an air conditioner using R410A, in order to prevent any other refrigerant from being charged accidentally, to
service port diameter of the outdoor unit control valve (3 way valve) has been changed. (1/2 UNF 20 threads per inch)
• In order to increase the pressure resisting strength of the refrigerant piping flare processing diameter and size of opposite
side of flare nuts has been changed. (for copper pipes with nominal dimensions 1/2 and 5/8)
New tools for R410A
New tools for R410A
Gauge manifold
Charge hose
Electronic balance
for refrigerant charging
Torque wrench
(nominal diam. 1/2, 5/8)
Flare tool
(clutch type)
Gauge for projection adjustment
Vacuum pump adapter
Gas leakage detector
• Incidentally, the "refrigerant cylinder" comes with the refrigerant designation (R410A) and protector coating in the U. S's ARI
specified rose color (ARI color code: PMS 507).
• Also, the "charge port and packing for refrigerant cylinder" require 1/2 UNF 20 threads per inch corresponding to the
charge hose's port size.
Indoor
alarm code
None Normal running
14 IGBT short circuit, Compressor motor rare short
16 Trouble on position detecting circuit
17 Trouble on current detecting circuit
18 Outdoor heat exchanger temp. sensor (TE) fault
18 Suction temp. sensor (TS) fault
19 Discharge temp. sensor (TD) fault
1A Trouble on outdoor fan motor
1B Outdoor temp. sensor (TO) fault
1C Trouble on compressor system
1C Temp. sensor (TGa) fault at A room gas side
1C Temp. sensor (TGb) fault at B room gas side
1C Temp. sensor (TGc) fault at C room gas side
1C Temp. sensor (TGd) fault at D room gas side
1C Gas leakage, TS sensor out of place, PMV, sensor fault
TE sensor out of place, Indoor heat exchanger sensor
1C
(TC) out of place, PMV, sensor fault
Miswiring at indoor or outdoor, Gas leakage, TS,
1C
TC sensor out of place, PMV, sensor fault
1C Communication trouble between MCU
1D Compressor lock
1E Trouble on discharge temp, Gas leakage
1F Compressor break down
Applicable to R22 model
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X
X
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Self-Diagnosis by LED Indication
Contents
Changes in the product and components
As pressure is high, it is impossible to measure by means of conven-
tional gauge. In order to prevent any other refrigerant from being
charged, each port diameter is changed.
In order to increase pressure resisting strength, hose materials and
port size are changed (to 1/2 UNF 20 threads per inch).
When purchasing a charge hose, be sure to confirm the port size.
As pressure is high and gasification speed is fast, it is difficult to read
the indicated value by means of charging cylinder, as air bubbles occur.
The size of opposite sides of flare nuts have been increased. Inciden-
tally, a common wrench is used for nominal diameters 1/4 and 3/8.
By increasing the clamp bar's receiving hole, strength of spring in the
tool has been improved.
Used when flare is made with using conventional flare tool.
Connected to conventional vacuum pump. It is necessary to use an
adapter to prevent vacuum pump oil from flowing back to the charge
hose. The charge hose connecting part has two ports-one for conven-
tional refrigerant (7/16 UNF 20 threads per inch) and one for R410A.
If the vacuum pump oil (mineral) mixes with R410A a sludge may occur
and damage the equipment.
Exclusive for HFC refrigerant.
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1. If a trouble occurs, LED goes on
according to the contents of
trouble as shown in the left table.
2. When two or more troubles occur,
LEDs go on cyclically (alternately).
3. Usually, LEDs go off.
D800 D801 D802 D803 D804
Red
Yellow
IGBT : Insulated Gate Bipolar Transistor
PMV : Pulse Modulating Valve
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: LED ON
l
: LED OFF
1 : 4 units Multi model only
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2 : Heat pump model only
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Changes
LED