Delta F-25 User Manual download pdf (Page 14)

9

Unit Preparation

SECTION III - Unit Preparation

Handling Instructions

The ELITE is generally easier to handle and

maneuver once removed from the shipping car-

ton and pallet.

To remove the shipping carton and pallet:

a. Remove the shipping straps and open

the top of the shipping carton to remove

the wood shipment insert.

b. Lift the shipping carton over the unit to

remove. If ceiling height is limited the

carton maybe cut open using care not to

damage the exterior jacket of the unit.

c. Discard all packing materials.

Hydrostatic Pressure Test

Prior to permanently connecting water,

oil/gas supply or electrical supply, per-

form a pressure hydrostatic test of the

outer tank to ensure all piping connec-

tions were not damaged during ship-

ment.

Hydrostatic Test Preparation

1. Mount the circulator on the supply pipe as

shown in Fig. 7 page 20.

2. Temporarily plug the primary return con-

nections as shown in Fig. 7 page 20 using a

1” NPT pipe plug. Use pipe dope sparing-

ly to allow removal of the plugs upon com-

pletion of the test.

3. On the outlet flange of the circulator pipe

install a 1” NPT nipple and shut-off valve.

Use pipe dope sparingly to allow removal

of the fittings upon completion of the test.

To avoid getting water onto the unit

and/or surrounding area additional pip-

ing from the shut-off to a catch bucket or

drain may be required.

4. Connect a hose to the primary circuit drain

valve located per Fig. 28 page 50, Item 2

and connect the other end to a fresh water

supply. Ensure the hose can be used as a

drain hose upon completion of the test.

Hydrostatic Test Procedures

1. Open the shut-off valve installed on the

outlet flange of the circulator.

2. Open the fresh water supply valve and then

open slowly the primary circuit drain valve

to fill the outer tank with water.

3. When the water within the outer tank

reaches the shut-off on the primary supply,

close the primary circuit drain valve.

4. Close the shut-off valve, on the top of the

circulator.

5. Slowly reopen the primary circuit drain

valve until the test pressure on the temper-

ature / pressure gauge reaches 10 psig

maximum. Close the primary circuit drain

valve.

To prevent damage to the inner tank the

test pressure must not exceed 10 psig.

6. Allow the test pressure to remain for 10

minutes.

Do not leave the unit unattended while

pressurized. A cold water fill could

expand and cause excessive pressure,

resulting in severe personal injury, death

or substantial property damage.

WARNING

CAUTION

NOTICE

BEST PRACTICES

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