Page 13
LGH/LCH036, 048, 060, 072
FIGURE 19
LOCATION OF STATIC PRESSURE READINGS
SUPPLY AIR
READING
LOCATION
SUPPLY
RE
TURN
INSTALLATIONS WITH DUCTWORK
SUPPLY
RE
TURN
INSTALLATIONS WITH CEILING DIFFUSERS
MAIN
DUCT RUN
FIRST BRANCH
OFF OF MAIN RUN
DIFFUSER
ROOFTOP UNIT
ROOFTOP UNIT
SUPPLY AIR
READING
LOCATION
RETURN AIR
READING LOCATION
RETURN AIR
READING
LOCATION
TABLE 4
ECTO SETTINGS
Unit Controller “SET
TINGS-CONTROL-MSAV”
Menu
ECTO
LGH/LCH Unit Factory Settings
Field Setting Description
036
H4E
048
H4E
060
H4E
036-060
S4T
SMOKE SPEED 0.02 55 80 59
Not Applica
ble
% torque for indoor blower smoke
speed.
HIGH SPEED 0.04 55 80 59
Not Applica
ble
% torque for indoor blower high
speed.
LOW SPEED 0.05 28 40 36
Not Applica
ble
% torque for indoor blower low
speed.
Unit Controller “SET
TINGS-SETPOINTS-
DAMPER” Menu
ECTO
LGH/LCH Unit Factory Settings
Field Setting Description
036
H4E
048
H4E
060
H4E
036-060
S4T
MIN OCP BLOWER LOW 0.09 15 15 15
Not Applica
ble
Damper minimum position during
low indoor blower.
MIN OCP BLOWER HIGH 5.24 10 10 10 10
Damper minimum position during
high indoor blower.
Installer: Circle applicable unit model number and record any ECTO changes under “Field Setting” column. Settings need to be recorded by
installer for use when unit controller is replaced or reprogrammed. Refer to unit controller guide “Setting” menu path or use optional software to
change settings.
C-Adjusting Unit CFM - Direct Drive Blowers
The supply CFM can be adjusted by changing Unit
Controller settings; see Settings - Control - MSAV menu.
Refer to table 4. Adjustments can also be made by using
optional software. Record any CFM changes on the
ECTO Settings label located on the inside of the
compressor access panel.
D-Adjusting Unit CFM - Belt Drive Blowers
The blower RPM can be adjusted at the motor pulley.
Loosen Allen screw and turn adjustable pulley clockwise
to increase CFM. Turn counterclockwise to decrease
CFM. See figure 20. Do not exceed minimum and
maximum number of pulley turns as shown in table 5.
TABLE 5
MINIMUM AND MAXIMUM PULLEY ADJUSTMENT
Belt Min. Turns Open Maxi. Turns Open
A Section No minimum 5
E-Blower Belt Adjustment - Belt Drive
Maximum life and wear can be obtained from belts only
if proper pulley alignment and belt tension are
maintained. Tension new belts after a 24-48 hour
period of operation. This will allow belt to stretch and
seat grooves. Make sure blower and motor pulley are
aligned as shown in figure 21.
To Next Page
Loading...
Need help?
General
