Section Iii - Unit Preparation; Handling Instructions; Hydrostatic Pressure Test; Hydrostatic Test Preparation - Delta Performance PG-25 Installation And Maintenance Manual

Unit Preparation

SECTION III - Unit Preparation

Handling Instructions

The PERFORMANCE is generally easier to
handle and maneuver once removed from the
shipping carton and pallet.
To remove the shipping carton and pallet:
a. Remove the shipping straps and open
the top of the carton to remove the
wood shipment insert.
b. Lift the carton over the unit to remove.
If ceiling height is limited, the carton
maybe cut open using care not to dam-
age the exterior jacket of the unit.
c. Remove the front burner hood to pre-
vent damage prior to lifting the unit
from the shipping pallet.
WARNING
When lifting or moving the unit do not
use the burner or its components as a
means of a handle. Hand-truck the unit
from the rear only.
d. Discard all packing materials.

Hydrostatic Pressure Test

BEST PRACTICES
Prior to permanently connecting water,
gas supply or electrical supply, perform
a pressure hydrostatic test of the outer
tank to ensure all piping connections
were not damaged during shipment.

Hydrostatic Test Preparation

1. Mount the circulator on the supply pipe as
shown in Figure 11 page 23.
2. Temporarily plug the primary return con-
nections as shown in Figure 11 using a 1"
NPT pipe plug. Use pipe dope sparingly to
allow removal of the plugs upon comple-
tion 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.
NOTICE
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 Figure 45 page 70, 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 and fresh water supply valve.
CAUTION
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.
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