Trane FIAOVFL001 Series Installation Instructions

Installation Instructions
Drain Pan Overflow Switch
Precedent™ Packaged Rooftop Units
3 to 25 Tons
Model Number: Used With:
FIAOVFL001* T/Y*036-300, W/D/G*036-300
SAFETY WARNING
Only qualified personnel should install and service the equipment. The installation,
starting up, and servicing of heating, ventilating, and air-conditioning equipment
can be hazardous and requires specific knowledge and training. Improperly
installed, adjusted or altered equipment by an unqualified person could result in
death or serious injury. When working on the equipment, observe all precautions
in the literature and on the tags, stickers, and labels that are attached to the
equipment.
September 2024 ACC-SVN242B-EN
©2024
4
Inspection
1. Unpack all components of the kit.
2. Check carefully for shipping damage. If any damage is found, report it
immediately, and file a claim against the transportation company.
Parts List
Table 1. Parts list
Qty Description
1 Wire tie
1 Drain pan overflow switch
Installation
WARNING
Hazardous Voltage w/Capacitors!
Failure to disconnect power and discharge capacitors before
servicing could result in death or serious injury.
Disconnect all electric power, including remote disconnects and
discharge all motor start/run capacitors before servicing. Follow
proper lockout/ tagout procedures to ensure the power cannot be
inadvertently energized. Verify with a CAT III or IV voltmeter rated per
NFPA 70E that all capacitors have discharged.
1. Open and lock unit disconnect.
2. Detach pipe, P-trap connected to condensate drain opening in the post.
3. Remove indoor refrigeration coil panel (A), indoor fan panel (B), heat section
panel(s) (C), followed by the vertical post (D) to which these were attached.
See Figure 1.
1
Warnings, Cautions, and Notices
Read this manual thoroughly before operating or servicing this unit. Safety
advisories appear throughout this manual as required. Your personal safety and
the proper operation of this machine depend upon the strict observance of these
precautions.
The three types of advisories are defined as follows:
Indicates a potentially hazardous situation which, if
WARNING
not avoided, could result in death or serious injury.
Indicates a potentially hazardous situation which, if
CAUTION
not avoided, could result in minor or moderate injury.
It could also be used to alert against unsafe practices.
Indicates a situation that could result in equipment or
NOTICE
property-damage only accidents.
Important Environmental Concerns
Scientific research has shown that certain man-made chemicals can affect the
earth's naturally occurring stratospheric ozone layer when released to the
atmosphere. In particular, several of the identified chemicals that may affect the
ozone layer are refrigerants that contain Chlorine, Fluorine and Carbon (CFCs)
and those containing Hydrogen, Chlorine, Fluorine and Carbon (HCFCs). Not all
refrigerants containing these compounds have the same potential impact to the
environment. Trane advocates the responsible handling of all refrigerants.
Important Responsible Refrigerant Practices
Trane believes that responsible refrigerant practices are important to the
environment, our customers, and the air conditioning industry. All technicians
who handle refrigerants must be certified according to local rules. For the USA,
the Federal Clean Air Act (Section 608) sets forth the requirements for handling,
reclaiming, recovering and recycling of certain refrigerants and the equipment
that is used in these service procedures. In addition, some states or
municipalities may have additional requirements that must also be adhered to for
responsible management of refrigerants. Know the applicable laws and follow
them.
5
Figure 1. Remove panels and post
B
A
C
D
4. Locate drain pan below the evaporator coil. Place the switch in the slot
provided in the overflow bracket and tighten nut. See Figure 2.
For A, B, and C cabinet units, if the drain pan is set for rear drainage, remove
the drain pan from the unit to access overflow mounting location. Attach
condensate drain sensor to bracket. Reinstall drain pan.
2
WARNING
Proper Field Wiring and Grounding Required!
Failure to follow code could result in death or serious injury. All field wiring
MUST be performed by qualified personnel. Improperly installed and grounded
field wiring poses FIRE and ELECTROCUTION hazards. To avoid these
hazards, you MUST follow requirements for field wiring installation and
grounding as described in NEC and your local/state/national electrical codes.
WARNING
Personal Protective Equipment (PPE) Required!
Failure to wear proper PPE for the job being undertaken could result in death
or serious injury. Technicians, in order to protect themselves from potential
electrical, mechanical, and chemical hazards, MUST follow precautions in this
manual and on the tags, stickers, and labels, as well as the instructions below:
• Before installing/servicing this unit, technicians MUST put on all PPE
required for the work being undertaken (Examples; cut resistant
gloves/sleeves, butyl gloves, safety glasses, hard hat/bump cap, fall
protection, electrical PPE and arc flash clothing). ALWAYS refer to
appropriate Safety Data Sheets (SDS) and OSHA guidelines for proper PPE.
• When working with or around hazardous chemicals, ALWAYS refer to the
appropriate SDS and OSHA/GHS (Global Harmonized System of
Classification and Labeling of Chemicals) guidelines for information on
allowable personal exposure levels, proper respiratory protection and
handling instructions.
• If there is a risk of energized electrical contact, arc, or flash, technicians
MUST put on all PPE in accordance with OSHA, NFPA 70E, or other country-
specific requirements for arc flash protection, PRIOR to servicing the unit.
NEVER PERFORM ANY SWITCHING, DISCONNECTING, OR VOLTAGE
TESTING WITHOUT PROPER ELECTRICAL PPE AND ARC FLASH
CLOTHING. ENSURE ELECTRICAL METERS AND EQUIPMENT ARE
PROPERLY RATED FOR INTENDED VOLTAGE.
6
Figure 2. D cabinet overflow mounting
3
WARNING
Follow EHS Policies!
Failure to follow instructions below could result in death or serious injury.
• All Trane personnel must follow the company's Environmental, Health and
Safety (EHS) policies when performing work such as hot work, electrical, fall
protection, lockout/tagout, refrigerant handling, etc. Where local
regulations are more stringent than these policies, those regulations
supersede these policies.
• Non-Trane personnel should always follow local regulations.
WARNING
R-454B Flammable A2L Refrigerant!
Failure to use proper equipment or components as described below could
result in equipment failure, and possibly fire, which could result in death,
serious injury, or equipment damage.
The equipment described in this manual uses R-454B refrigerant which is
flammable (A2L). Use ONLY R-454B rated service equipment and components.
For specific handling concerns with R-454B, contact your local representative.
Copyright
This document and the information in it are the property of Trane, and may not
be used or reproduced in whole or in part without written permission. Trane
reserves the right to revise this publication at any time, and to make changes to
its content without obligation to notify any person of such revision or change.
Trademarks
All trademarks referenced in this document are the trademarks of their respective
owners.
Revision History
• Used with model number information updated.
• Updated Installation section.
CONNECTOR
OVERFLOW BRACKET
UNIT DRAIN OUTLET