Daikin DPS 003 Manual page 71

Preparation for Storage
Supply Fans
1. Depending on local climate conditions, condensate
may collect on components inside the units. To prevent
surface rust and discoloration, spray all bare metal parts
with a rust preventive compound.
Cabinet Sections
Once a month, open a door on each section and verify that no
moisture or debris is accumulating in the unit.
Control Compartment
1. McQuay International recommends that the electronic
control equipment in the unit be stored in a 5% to 95%
RH (non-condensing) environment.
2. It may be necessary to put a heat source (light bulb) in
the main control panel to prevent the accumulation of
atmospheric condensate within the panel. The location
and wattage of the heat source is dependent on local
environmental conditions.
3. Check the control compartment every two weeks
to confirm that the heat source is functional and is
adequate for current conditions.
Filter Replacement
This unit is provided with filters are show in
71. These filters are disposable and should be replaced
periodically. Unit is equipped with a filter pull to assist in this
process. See Figure 54.
Table 29: Filter Sizes
Cabinet Size
003—006
007—015
Restart
After extended storage, perform a complete start up.
Inevitable accumulations of dirt, insect nests, etc. can
contribute to problems if not cleaned out thoroughly prior
to start up. In addition, thermal cycling tends to loosen
mechanical and electrical connections. Following the startup
procedure helps discover these and other issues that may have
developed during the storage interval.
IM 1125-5
Figure 54: Rebel Filter Section
Fans
The supply, condenser and exhaust fan motors are
permanently lubricated and require no periodic lubrication.
Vibration Levels
Each unit as shipped is trim balanced to operate smoothly. To
provide satisfactory operation after shipping and installation,
Table 29 on page use accepted industry guidelines for field balancing fans.
NOTE: Excessive vibration from any cause contributes to
Vibration Causes
Filter Size
4 - 16" x 16"
4 - 24" x 24"
Periodic Service and Maintenance
premature fan and motor bearing failure. Monitor
overall vibration levels every six months of operation.
An increase in levels is an indication of potential
trouble .
1. Wheel imbalance.
a. Dirt or debris on wheel blades.
b. Wheel distorted from overspeed.
2. Bent shaft.
3. Motor imbalance.
4. Fan section not supported evenly on foundation.
1. Check all moving parts for wear every six months.
The Rebel unit is equipped with a direct drive, ECM
(Electronically Commutated Motor) fan / motor
combination with a built in inverter. When equipped,
the exhaust fan will be the same. The motor utilizes a
brushless DC voltage with a permanent magnet rotor.
There are no belts or pulleys to maintain. The bearing
are permanently sealed and do not require periodic
greasing.
Maintenance
Maintenance
71