REFCO YUMA: инструкция

YUMA

Installation and operating guide

Installations- und Bedienungsanleitung

Guide d’installation et d’utilisation

Istruzioni per l'installazione e l'uso

Guía de instalación y funcionamiento

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Installatiehandleiding en gebruiksaanwijzing

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YUMA

Condensate removal pump

Installation and operating guide

The YUMA is a self-contained 

condensate removal system for 

use directly inside the tubing 

chase of high-wall-mount air 

conditioners.

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30

40

50

10

60

20

0

0

0

0

Vertical lift

(m)

(ft)

F

lo

w

 r

at

e

(l

/h

)

(U

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 g

al

/h

))

0m Horiz

50m Horiz

100m Horiz

Capacity

Specifications

Power supply:

120/240 Vac, 50/60 Hz Auto sensing

Power consumption: 16 W max., 0.25 W when idle

Alarm relay:

5A, 30Vdc, 250Vac Break on fault

Capacity:

12 litres/hour max. (3.17 US gal/h)

Maximum head:

Vertical >20 m (65 ft), Horizontal >100 m (328 ft)

Suction 1 m max.  (3.28 ft)

Ambient temp:

0 - 40°C

Water temp:

25°C max.

Material:

Flame retardant ABS  UL94 5VA

Discharge tube:

6 mm (1/4”) ID

Dimensions:

175 x 46 x 40 mm (6.9” x 1.8” x 1.6”)

IP:

44

GB

1

SAFETY INSTRUCTIONS AND WARNING

Under normal use this equipment requires no user intervention. Installation, both fixing 

and electrical, and maintenance work shall be carried out only by the manufacturer or 

by its service center or in any case by a person having similar skills, so as to prevent 

any risk. Electrical installation of equipment shall be in compliance with these 

installation instructions and with all National and Local Regulations for Electrical Safety.

To reduce the risk of fire, electrical shock and injury to persons, the following safety 

instructions shall be used:

Ÿ

This pump is intended for indoor use with water only (max 25°C).

Ÿ

This pump is NOT SUBMERSIBLE.

Ÿ

Disconnect ALL power supplies before starting installation, connection or 

maintenance work.

Ÿ

This pump is provided with a grounding conductor. To reduce the risk of electric 

shock, be certain that it is connected only to a properly grounded, grounding type 

receptacle.

Ÿ

All interconnecting tubes and cables should be confined within the air conditioning 

unit, or enclosed in any way

Ÿ

During electrical installation, make sure this condensate pump is connected to a 

circuit having switch with contact separation in all poles that provide full 

disconnection  from the power supply under over-voltage categories III

Ÿ

During electrical installation, a fuse non-time delay (rated 250V 1A), shall be fitted 

into the line, supply side, see electrical installation section.

Ÿ

The power cord is not replaceable. If the power cord is damaged then the entire 

pump must be replaced.

Ÿ

Children should be supervised to ensure that they are not left unattended in the area 

where the pump is in use.

Ÿ

Children or persons with reduced physical, sensory or mental capabilities which limits 

their ability to use the appliance should have a responsible person to instruct them in 

its use. 

Do not  allow any chemicals to come into contact with this pump. Remove the pump 

from the system before using cleaning fluid or any other chemicals. Flush the system 

with clean water before re-connecting the pump.

All fittings on this pump are designed to be finger-tight. The use of tools to attach 

pipework may result in damage to the pump.

In any installations where property damage and/or personal injury might result from an 

inoperative or leaking pump, it is strongly recommended that the alarm relay should be 

used to operate an alarm and/or switch off the air conditioning unit.

GB

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Outlet

Breather support

Breather tube

Inlet

connector

Inlet

Fig.1.

Operation

The YUMA contains an internal sensor that will automatically start the pump when 

condensate is detected and stop the pump when the condensate has been removed. 

The YUMA is also fitted with a high water level alarm that will operate the alarm relay if 

the water level rises to abnormal levels. The pump will continue to run until the minimum 

water level is reached and the alarm will reset.

Installation

The YUMA pump can be installed at any angle between horizontal and vertical so long as 

the breather tube inlet is above the condensate inlet (Fig. 3). The YUMA can also be tilted 

sideways up to 30° from horizontal (Fig. 2).

The YUMA pump should be positioned in a suitable location within the equipment below 

the level of the collection tray. The top of the breather tube should be positioned above 

the highest part of the collection tray to avoid overflowing (Fig. 4). The YUMA pump, 

condensate tubes and mains cable should be kept away from panels and surfaces and, 

where possible, insulated with foam to minimise noise.

90

°

Fig.3.

ü

û

ü

30

°

30

°

Fig.2.

ü

ü

ü

Fig.4.

ü

Drain hose

Inlet connector

Foam insulation

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Fig.5.

Alarm Contacts

Volt Free Break On Fault connection 

is rated 5 amps 1250VA. It may be 

necessary to use a contactor if the air 

handler supply is to be switched.

Cable Connections

Wire Colour

Connect

Symbol

1 GREEN/ YELLOW

EARTH

E   

2 BLACK

LIVE

L      

3 WHITE

NEUTRAL

N

4 VIOLET

Alarm contact

5 VIOLET

Alarm contact

E

L

N

POWER SUPPLY

CONTROL

CIRCUIT

1A

FUSE

1

2

3

4

5

Wiring Connections

Connect the ground, live and neutral wire from the supply cable of the YUMA pump to 

the supply terminals (see Fig.6)

This product must be connected using a switch with contact separation in all poles that 

provide full disconnection  from the power supply under over-voltage categories III. A 

fuse non time delay (rated 250V 1A), shall be fitted into the line, supply side (see Fig.5).

Testing

Before testing, ensure that the collection tray and drain hose is free of dirt and debris.

Pour clean tap water into the collection tray until the pump starts. Pump operation may 

be noisy initially until any air has been purged from the system.

Continue to add water and the pump should switch to full power and the alarm contacts 

should open. Do not continue to add water if it becomes visible in the breather tube.

Allow the YUMA to clear the water. The pump should switch off and the alarm relay 

should reset.

GB

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WARRANTY

This product is guaranteed for two years to be free from manufacturing defects or faulty 

materials. If it should fail for either of these reasons within two years from the date of 

manufacture it will be repaired or replaced free of charge, at the option of REFCO 

Manufacturing Ltd.

REFCO Manufacturing Ltd. can accept no liability whatsoever for any loss or damage 

arising from the use of this product, however caused. Before using this product the user 

should satisfy himself that it is suitable for use in the intended application and for the 

manner in which it is intended that it be used.

This product is subject to continuous development and improvement and REFCO 

Manufacturing Ltd. Reserves the right to alter the specification or design without prior 

notice.

Trouble Shooting

Pump does not run:

Check fuse and electrical supply 

connections.

Check that water is reaching the pump 

sensor.

Pump continues to run with no water:

The water sensor can become over 

sensitive if contaminated by dirt, mould or 

certain cleaning chemicals. If this occurs 

the pump may continue to run with no 

water. Disconnect the YUMA from the 

mains supply and flush the sensor by 

pouring clean tap water into the inlet for 

around 30 seconds (Fig. 6). If the problem 

persists, flush with methylated spirit and 

then rinse with water.

Pump is noisy:

Check that the YUMA, mains cable and 

outlet tube are not vibrating against the 

sides of the equipment.

Fig.6.

Pump is pumping air:

Check that the YUMA is in the correct 

orientation.

Check that the outlet tube is not syphoning.

In dirty environments an in-line filter is 

recommended to avoid pump and sensor 

damage.

GB

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