IOM 1178-1 / Page 9 of 16
Installer/Configuration Menu
17 & 18.
Select Cool Savings
™ – Cool Savings™
provides an energy saving temperature offset
(from 1-6 degrees) under peak cooling load
conditions (high outdoor temperatures).If selected
on, Cool Savings™ becomes active when the water
source heat pump runs for periods of longer
than 20 minutes. When active, Cool Savings™
gradually offsets the indoor temperature display
downward. The first 1° of adjustment will take
one hour of continuous water source heat pump
run time with subsequent 1° adjustments occurring
with each additional half hour of run time (ex for a
2° offset, the water source heat pump would need
to run continuously for 1½ hours). The offset is
limited to the number of degrees you select from
1 up to 6. When an offset starts or is active, “Cool
Savings” will flash on the display.
The principle of this energy saving feature takes
advantage of the long air conditioning run times
lowering the indoor humidity allowing a slightly
higher temperature to feel comfortable. As the peak
load subsides, this feature also takes advantage of
the water source heat pump's increased capacity
under more efficient conditions to gradually reduce
the offset back to zero and return control to the
selected setpoint temperature.
If Cool Savings is selected off, no temperature
offset will occur.
19.
Heat Temperature Limit Range
– This feature adjusts
the highest setpoint temperature for heat. The default
setting is 99°F. It can be changed to a setting between
62°F and 98°F. The “temperature limit” icon will be
displayed to the left of your setpoint temperature when
using this feature. The “temperature limit” icon will flash
if an attempt is made to adjust the temperature beyond the
range selected.
20.
Cool Temperature Limit Range
– This feature adjusts
the lowest setpoint temperature for cool. The default
setting is 45°F. It can be changed to a setting between
46°F and 82°F. The “temperature limit” icon will be
displayed to the left of your setpoint temperature when
using this feature. The “temperature limit” icon will flash
if an attempt is made to adjust the temperature beyond the
range selected.
21 & 22.
Keypad Lockout
– This step allows you to select
the type of lockout or limited range security
required. If no lockout or limited range security is
required, press to advance the menu.
Three security settings are available in this menu
item.
Use the
or
keys to select the lockout desired.
Lockout selections are:
“Keypad Lockout and L” = Total Lockout. Total
Lockout locks all keys.
“Keypad Lockout and P”
= Partial Lockout.
Partial Lockout allows only the
or
keys to
operate within your set temperature limits.
“Temperature Limit/Keypad Lockout”
prevents changing the temperature limits in the
Configuration Menu. After the type of lockout is
selected, press
.
Keypad Lockout Combination Number
Selection
Display will read
“000” “Keypad
Lockout”.
Skip this step and continue through the remainder
of the configuration menu if you require an Air
Filter Change out indicator or Humidifier Pad
Change out indicator by pressing the
key to
advance.
Return to this point when you are ready to start
your selected lock-out and continue by:
Pressing or
keys to select your keypad
lockout combination number.
Note: “000”
is not a
valid combination choice.
Record the number you select for future use.
Press to exit the menu. The security feature you
select will start in 10 seconds. The system key will
remain active for 10 seconds to allow setting Heat,
Off, Cool or Auto.
To unlock the keypad, press Menu, then press
Installer Config. Display will show
“000”
and
keypad lock. Enter the code used to lock the keypad
and press
.
23 & 24.
Select Fast Second Stage, ON or OFF
– Not
available if configured for SS1. Selecting FA ON
forces additional heat stages to come on quickly
when
is used to raise the temperature a few
degrees above the room. Select this setting if
you want the heat to increase quickly when you
manually raise the temperature.
Selecting FA OFF allows the thermostat to
calculate an optimal time to bring on additional
stages of heat. When the
is used to raise the
setting above the room temperature additional heat
stages may come on very quickly or very slowly
(up to 30 minutes later) depending on recent
system performance. Select this setting if you do
not require the additional heat stages to come on
quickly when you manually raise the setting and
want to allow the thermostat to stage based on
recent system performance.
The Fast Cool feature operates the cooling stages in
the same manner as Fast Heat, On or Off when the
temperature is lowered below the room setting.
25.
Select Remote Temperature Sensor Enabled
– ON
enables a remote sensor connected to thermostat and
displays the sensor temperature in the clock digits. OFF
(default) indicates no remote sensor connected or enabled.
