Mammoth V-Cube Slim Split F-Series Sizes 830 and 840 - Manual (Page 14)

Mammoth V-Cube Slim Split IOM, MAMM-VCS-IOM-3FA (September 2013) 14
Startup
The following should be used as a guide for a compre-
hensive commissioning and startup procedure which is
required before placing your Mammoth unit into service.
IMPORTANT! The commissioning and startup
procedures described in this document must
be carried out prior to placing this unit into
service. Failure to follow these procedures
could result in improper or dangerous opera-
tion and/or void the equipment warranty.
CAUTION! Installation, startup and servicing
of this equipment should only be undertaken
by trained professionals with experience
working on commercial HVAC systems. Con-
tact your Mammoth representative or the
Mammoth Service Department for help in
scheduling service.
Startup Report Form
A startup report form is zip-tied to the inside of the main
control panel. In addition to carrying out the procedures
described in this guide, it should be filled out, signed and
returned to Mammoth as part of the warranty process for
your system. See the warranty documents included with
your unit for additional information.
Prior to Startup
Before requesting unit startup, please verify all of the fol-
lowing.
•
The main power supply is connected to the unit dis-
connect and electrical power is available to run the
unit.
• Drain lines are connected to the condensate connec-
tions. See “Condensate drain” on page 17.
• The controls contractor has been notified of the
requested start-up date and is confirmed to attend.
• The duct system is complete enough to allow for
operation.
• All air filters have been installed.
• All water systems, if applicable, have been fully
installed, tested and will be operable.
Startup: Power Off
Verify that the system on/off and/or standby switch is in
the off or standby position. Then carry out the following
procedures.
WARNING! Electric shock and moving equip-
ment hazard. Can cause severe injury or
death. Lock and tag out all electric power
before carrying out these procedures. More
than one disconnect may be required to de-
energize the unit..
Electrical
Electrical Terminals
Tighten all electrical terminals per the torque value listed
on the connector. Electrical terminals are located within
the main unit control panel. Where no torque value is
given, use the tightening torques provided in this manual.
See “Electrical Terminal Tightening Torques” on page
19.
WARNING! Loose electrical terminals can
lead to erratic unit operation and arcing which
may cause fires. Tighten all electrical ter-
minals before unit startup. Be careful not to
over-tighten to avoid stripping out threads..
Motor Protector Settings
Before startup, adjust the overload setting on all motor
protectors as follows. They are located within the unit
electrical panel. See Figure 14.
Figure 14: Motor Protectors
Adjust motor protector amp settings to match electrical
schematics or motor nameplates
1. Switch to the off position all motor protectors.
2. For motors and pumps, adjust the setting to match
the amps (FLA) listed on the motor nameplate.
3. For compressors and VFDs, adjust the setting as
indicated on the electrical wiring diagram provided
with your unit.