ATI Technologies BL22121 사용 설명서 - 페이지 4

{카테고리_이름} ATI Technologies BL22121에 대한 사용 설명서을 온라인으로 검색하거나 PDF를 다운로드하세요. ATI Technologies BL22121 8 페이지. Marine water heater with dual heating as standard: electrical heating and indirect heating

페이지 인쇄

GENERAL INFORMATION AND FEATURES

5. CONSTRUCTION DESCRIPTION AND OPERATION

The purpose of this device is to heat the domestic hot water in two different ways (see FIG_5-1.):

A. through the heat exchange between the engine cooling water and the water stored in the tank. Such heat

exchange is possible thanks to a heat exchanger. The engine cooling water circulates through a coil placed at the

center of the tank to spread the heat evenly.

B. by means of an electric resistance (supplied as standard with the appliance).

Main parts (see FIG_5-2.):

1. Storage tank: it is entirely made of steel submitted internally to a double enamelling treatment that is a vitreous

coating cooked at over 850 °C.

2. External coating: aluminum; it is highly resistant to shocks and external solicitations, having at the same time a very

pleasant design.

3. Thermal insulation: made of expanded polyurethane with closed cells avoids unnecessary heat losses. In this way

the heat loss by thermal inertia is reduced to 1 ° C per hour for a period of 24 hours.

4. Heat exchanger: it is made of enamelled iron and its exchange surface allows to exploit at best the heat of the engine

cooling water and to get hot water also in extreme conditions (very small temperature differences).).

5. Electrical resistance: the device is equipped with an electric heating element to heat the water even when the boat

engine is turned off (for example when the boat is on the dock). Material: Incoloy corrosion resistant alloy.

6. Thermostat: has two functions, namely

a. temperature control: interrupts the power supply to the heater element when reaching the set temperature

b. overtemperature safety: interrupts the power supply to the resistance in case of excessive water temperature.

characteristics: temperature control: 0 ° C - 60 ° C; Differential temperature: about 9 ° C; intervention

temperature: 83 ° C; maximum current: 20 A

7. Cold water inlet and pressure relief valve (it protects the tank from possible excessive pressures caused by the

expansion of water during heating. Automatically, without the assistance of different energy from that of the hot fluid

under pressure, discharge a quantity of fluid such as to prevent them from being exceeded the predetermined

pressure and temperature limits to protect the storage tanks. Calibration: 800 kpa - 116 psi)

8. Hot water outlet

10. Mounting bracket

6. GENERAL WARNINGS



The installation must be performed in accordance with current legislation, by a qualified person who can do, not only

a proper set up of the device, but also the necessary tests before starting the water heater.



during the original installation and subsequent maintenance, follow the instructions in this booklet carefully. changes

to any type of connection or failure to follow instructions will cause the warranty expires.



before the installation, maintenance or repair, remove the power supply unit.

WARNING: USE THE BOILER ONLY FOR APPLICATIONS IN THIS SECTION. DO NOT USE THIS

EQUIPMENT FOR OTHER TYPES OF OPERATION. THE MANUFACTURER DOESN'T ASSUME

RESPONSIBILITY FOR INCIDENTAL OR CONSEQUENTIAL DAMAGES CAUSED BY IMPROPER

APPLIANCE.

7. POSITION AND ASSEMBLY

The device can be installed in any space, without limitation, subject to compliance with the instructions provided in section 1.

GENERAL PRECAUTIONS.

On the unit there are two fixing brackets (FIG_7-1). This way you get easy installation but stable and safe.

The appliance must be installed in such a way that the heat exchanger and / or the electrical resistance are placed in the

lower part (FIG_7-2). For other installations not covered in this manual and for installation on sloping walls, contact our

technical office.

It is possible to install the device even on sloping walls (FIG_7-2)

8. HYDRAULIC CONNECTIONS

To extend the life of the appliance water quality must meet the following limits:

hardness comprised between 15 and 50 ° F (in

particular, where the water has undergone a softening

or desalination treatment)

Minimum pressure water inlet: 70 kpa.

Maximum water inlet pressure: 750 kpa (for higher inlet pressures is necessary to mount a pressure reducer with

compensation of inlet pressure; adjustable downstream pressure, max 700 kpa)

Connect the appliance according to the following directions:

chlorides comprised between 25 and 100 mg / l

PH between 6.5 and 9.5

conductivity between 400 and 1500mS / cm

ENGLISH

p. 2/4