Carrier 39G Handleiding

Carrier Niet gecategoriseerd 39G

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A United Technologies Company
Carrier
International
Sdn. Bhd.
Malaysia
INSTALLATION, START-UP AND
SERVICE INSTRUCTIONS
CENTRAL STATION AIR HANDLING UNITS
CONTENTS
1.0 Safety Consideration 1
2.0 Pre-Installation 2
3.0 Rigging 2
4.0 Installation 3
5.0 Unit Identication 5
6.0 Section Joining Instruction 6 - 7
7.0 Fan Motor & Drives 8
8.0 Refrigerant Piping, Direct Expansion Coils 9
9.0 Guide To Starting Up 12
10.0 Guide To Servicing 13 - 16
11.0 Filter 17
12.0 Unit Dimension 18
1.0 SAFETY CONSIDERATION
Air handling units are designed to provide safe and
reliable service, when operated within design
specifications. To avoid injury to personnel and damage
to equipment or property when operating this
equipment, use good judgement and follow safe
practices as outlined below.
a) Check the assembly and component weights to
be sure that the rigging equipment can handle
them safely.
b) Check for adequate ventilation so that fumes will
not migrate through ductwork to occupy space
when welding or cutting inside air handling unit.
c) Do not remove access panel or door until fan is
completely stopped.
d) Do not work on dampers until their operators are
disconnected.
e) Be sure that the fan motors are properly grounded
before working on them.
f) Never enter an enclosed fan cabinet or reach into
the unit while the fan is running.
g) Disconnect power to the fan motor (Lock open and
tag) before working on the fan.
h) Disconnect power to electric heaters (Lock open
and tag) before working on or near heaters.
i) Never pressurise equipment in excess of specified
test pressure.
j) Protect adjacent flammable material when welding
or flame cutting. Use sheet metal or asbestos cloth
to contain sparks. Have a fire extinguisher at hand
and ready for immediate use.
INTRODUCTION
These instructions apply to the
Carrier 39G Galaxy Air Handling Unit.
WARNING
2
3.0 RIGGING
3.1 All 39G units are equipped with rigging hole. As
such, the units can be rigged by means of the rigging
rod.
2.0 PRE-INSTALLATION
2.1 Check items received against packing list. Notify
Carrier of any discrepancies.
2.2 Examine for damage incurred during shipment. File
claim with transit company if any damage is found.
2.3 Refer to rigging details as shown in (Fig.1) to transfer
unit from truck to storage site.
2.4 If unit is to be stored for more than 2 weeks prior
to installation, please exercise the following
precautions :-
a) Choose a dry storage site that is reasonably level
and sturdy to prevent undue stress and damage
to the unit structure or components. Do not store
on vibrating surface - damage to stationary bearing
can occur.
b) Remove all fasteners and other small parts - tag
and store these items in a safe place until needed.
c) Unit are shipped from the factory wrapped in protective
plastic sheet. The plastic sheets may be damaged
during transit or after inspection. Cover entire unit
with tarpaulin or plastic coverall. Extend cover under
unit if stored on ground. Secure cover with adequate
tie downs.
d) When unit is stored over an extended period we
recommend a monthly procedure as follows -:
Remove the tarpaulin from the unit, enter fan through
access door or fan section inlet, remove the belt
ties (if any) and rotate fan and motor (if any) slowly
by hand. This helps to re-distribute bearing grease
and to prevent bearing corrosion.
If a fork lift truck is used, lift only from the heavy end.
3.2 Units are shipped fully assembled or in sections,
depending on size and application. The 39G Galaxy
central station air handling unit are built up in "Modules"
(Refer to Fig. 3). Any unit which is 22M (module)
or longer in length will be shipped in shorter sections.
3.3 Do not remove skids or protective covering until
unit or section is ready for nal replacement.
IMPORTANT:
a) Do not lift unit by coil connections or headers.
b) Do not remove protective caps from coil piping
connections until ready to connect piping.
c) Do not remove protective cover on grease from fan
shaft until ready to install sheave.
d) When fan and motor drives are supplied from the
factory, and unit is stored over an extended
period It's recommended that belts should be .
tagged and needed. Thisstored at a safe place until
will help to minimise theft at job site.
e) Do not remove the shipping bracket (Refer to Fig. 2)
that are supplied to prevent the fan housing and
motor base from moving during transit. These
shipping bracket should only be removed after the
air handling unit is positioned and just immediately
after the fan motor and drive is installed.
f) Do not remove the shipping wood block, unless the
fan motor and drive is going to operate.
CAUTION
Fig. 2 Shipping Bracket
Fig. 1 Rigging Of Units
Picture shown typical shipping bracket for
standard offering of rubber isolator. It applies
also to spring isolator conguration.
Shipping Bracket
3
Fig. 4 Installation At Ground Level
Fig. 5 Suspended Installation
NO. OF MODULES CASING
Fig. 3 Dimension Of Functions
Note:-
Add 50mm for overall 25mm panel casing
dimension and 100mm for overall 50mm panel
casing dimension which includes the aluminium
frames.
1M 100
2M 200
3M 300
4M 400
5M 500
6M 600
7M 700
8M 800
9M 900
10M 1000
DIMENSION OF FUNCTIONS (MODULES)
LENGTH OF SECTIONS IN MILLIMETRES
4.0 INSTALLATION
4.1 Ground/Floor Mounted Units.
a) When installing the air handling unit on the ground/
floor, a raised concrete plinth is recommended
(Refer to Fig. 4 & 5).
b) Provide adequate clearance for unit service access
(fan shaft and coil removal, filter removal, motor
access, etc) (Refer Fig. 7).
c) An adequate trap must be provided to the condensate
drain line to prevent excessive built up of condensate
in the drain pan.
4.2 Condensate Drain -
Install a trapped condensate drain line at unit drain
connection. Use 40mm (nominal) (43mm OD)
standard pipe. See (Fig. 6), for proper trap design
for a draw-through unit.
Determine design negative static pressure. This
pressure is not the same as fan total pressure,
which includes pressure losses downstream as
well as upstream from the indoor air fan. Always
assume the worst conditions such as having return
air lters clogged with dirt.
Referring to (Fig. 6), Differential 'A' must be equal
to or larger than negative static pressure at design
operating seal. (Differential 'B'). This differential
must be equal to or larger than one-half the maximum
negative static pressure. When the fan starts.
Dierential ‘C’ is equal to the maximum negative
static pressure.

Product specificaties

Merk: Carrier
Categorie: Niet gecategoriseerd
Model: 39G

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