Sanyo DE User Manual download pdf (Page 48)

SUPER ABSORPTION

ENVIRONMENTALLY FRIENDLY TECHNOLOGY

Evaporator cover

Generator cover

Don't insulate the motor,

refrigerant pump and sight glass.

75mm thick insulation for hot surface

50mm thick insulation for hot surface

Evaporator cover and chamber cover are

removable in construction

30mm thick insulation for cold surface

Model 75mm 30mm 50mm 30mm

LE-01 2.3 1.4 3.3 0.2

LE-02 2.3 1.4 3.3 0.2

LE-03 2.7 1.6 3.9 0.3

LE-11 2.8 1.6 4.0 0.3

LE-12 2.8 1.8 4.0 0.3

LE-13 3.8 1.9 5.5 0.3

LE-14 3.8 2.2 5.5 0.3

LE-21 4.0 2.5 6.1 0.4

LE-22 4.0 2.5 6.1 0.4

LE-23 5.2 3.1 7.6 0.5

LE-24 5.2 3.3 7.6 0.5

LE-31 6.0 3.5 8.5 0.5

LE-32 6.0 3.6 8.5 0.5

LE-41 6.6 3.7 9.9 0.5

LE-42 6.6 3.9 9.9 0.5

LE-51 7.6 4.8 13.8 0.7

LE-52 8.4 5.1 15.0 0.7

LE-53 9.2 5.3 16.1 0.7

Hot surface

insulation(m

)

Cold surface

insulation(m

)

Notice :

1) Material : Glass wool or rock wool (non-combustible type)

2) The total area includes the area of pipes in the chiller.

3) The machine is coated with rust preventive paint before shipment,

but is not provided with finish paint.

Figure 65. Insulation of LE

Insulation (LE)

In some instances local codes may dictate the use of a rupture disk to

prevent damage to the chiller in the event of overpressurization of the

high and low temperature generators. SANYO units are provided with a

flange for mounting a rupture disk.

At this flange connection, a rupture disk may be installed and connected

to a field-provided overflow tank per Figure 66.

It is the responsibility of the installing contractor to install the rupture disk

on the units and overflow tank (if required) prior to initial chiller startup.

Rupture disk mounting

Rupture disk mounting instructions are as follows:

1. Prior to installing or replacing the rupture disk, insure that a slight

positive pressure is maintained in the chiller with nitrogen gas.

2. Apply Teflon paste to both sides of gasket.

3. Align gasket as shown in Figure 68.

4. Assemble flanges and torque per specifications shown in the manual

of rupture disk.

5. Conduct leak test using nitrogen gas at 49 kPa (0.5 kg/cm

G) after

installation of rupture disk.

6. Periodic maintenance should include tightening the rupture disk with

a torque wrench.

4.5

3.2

4 inch

• Material : T/#9090-OR

disk

6 inch

disk

(mm)

174.8

149.4

127.6

222.3

209.6

182.6

C B

Pipe

Flange

High tension nut

High tension bolt

To tank

From chiller

Teflon paste

Safety head

: Scope of supply by SANYO

Rupture disk

Safety head

Teflon paste

Gasket

Cap screw

Above 35 QFT

Discharge piping

Rupture disk

Vent piping

Drain

Tank

Support

Figure 66. Piping of rupture disk

Figure 67. Fixing methed of rupture disk

Figure 68. Gasket

Table 18. Insulation data

1 2 ... 43 44 45 46 47 48 49 50

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Sanyo DE User Manual Page 48

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