Delta F-25 - Manual (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