EconoMi$er X
Factory---Installed Option
Low Leak Economizer
for 2 Speed SAV (Staged Air Volume) Systems
Installation, Setup & Troubleshooting Supplement
This document is a supplemental installation instruction for the factory-installed
EconoMi$er X (low leak economizer) option. It is to be used with the base unit
Installation Instructions for 48/50TC, 50TCQ, 48/50HC, and 50HCQ 2-Stage cooling
units, sizes 08 – 30. Units equipped with the EconoMi$er X option are identified by
an indicator in the unit's model number (see the unit's nameplate). Use Table 1 (on
page 2) to identify whether or not a given unit is equipped with the
factory-installed EconoMi$er X.
NOTE
: Read the entire instruction manual before starting the installation.
TABLE OF CONTENTS
SAFETY CONSIDERATIONS
1
. . . . . . . . . . . . . . . . . . . .
GENERAL
2
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Identifying Factory Option
2
. . . . . . . . . . . . . . . . . . . . . .
EconoMi$er X
3
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
W7220 Economizer Controller
3
. . . . . . . . . . . . . . . . . . .
User Interface
3
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Menu Structure
3
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Checkout Tests
7
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SETUP AND CONFIGURATION
7
. . . . . . . . . . . . . . . . .
W7220 Economizer Module Wiring
7
. . . . . . . . . . . . . .
Time--Out and Screen Saver
7
. . . . . . . . . . . . . . . . . . . . .
Enthalpy Settings
8
. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Enthalpy Control Sensor Configuration
8
. . . . . . . . . . . .
Install Outside Air Hood — Factory Option
9
. . . . . . . .
15 to 25 Ton Horizontal Return Application with . . . .
Barometric Relief
9
. . . . . . . . . . . . . . . . . . . . . . . . . . . .
OPERATION
10
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Cooling, Unit with EconoMi$er X
10
. . . . . . . . . . . . . . .
Heating, Unit with EconoMi$er X
10
. . . . . . . . . . . . . . .
Demand Control Ventilation
10
. . . . . . . . . . . . . . . . . .
TROUBLESHOOTING
11
. . . . . . . . . . . . . . . . . . . . . . . . .
Power Loss (Outage or Brownout)
11
. . . . . . . . . . . . . . .
Alarms
11
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Clearing Alarms
11
. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SAFETY CONSIDERATIONS
Improper installation, adjustment, alteration, service,
maintenance, or use can cause explosion, fire, electrical
shock or other conditions which may cause personal injury
or property damage. Consult a qualified installer, service
agency, or your distributor or branch for information or
assistance. The qualified installer or agency must use
factory--authorized kits or accessories when modifying this
product. Refer to the individual instructions packaged with
the kits or accessories when installing.
Follow all safety codes. Wear safety glasses and work
gloves. Use quenching cloths for brazing operations and
have a fire extinguisher available. Read these instructions
thoroughly and follow all warnings or cautions attached to
the unit. Consult local building codes and appropriate
national electrical codes (in USA, ANSI/NFPA70, National
Electrical Code (NEC); in Canada, CSA C22.1) for special
requirements.
It is important to recognize safety information. This is the
safety--alert symbol
. When you see this symbol on the
unit and in instructions or manuals, be alert to the
potential for personal injury.
Understand the signal words DANGER, WARNING,
CAUTION, and NOTE. These words are used with the
safety--alert symbol.
DANGER identifies the most serious hazards which
will
result
in severe personal injury or death. WARNING signifies hazards
which
could
result in personal injury or death.
CAUTION is used to identify unsafe practices, which
may
result in minor personal injury or product and
property damage.
