Healthy Climate Solutions ERV5-130, Installation Instructions Manual

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THERMOSTAT VENTILATION PARAMETERS
Thermostat ventilation CFM parameters are to be adjusted
only after the HRV/ERV set up is completed and the CFMs
are known. Once the thermostat’s CFMs are adjusted they
are used with the thermostat’s timer algorithm to determine
how long to run the HRV/ERV and to change from low to
high speed if a 2-stage HRV/ERVs.
Go to menu > settings > advanced settings > view
dealer control center > equipment > smart hub . Locate
the parameters listed in “Table 9. Smart Hub Parameters
(Ventilation)”.
The following parameter will be application specific and are
only listed where applicable to the type of equipment and
control mode being used, for example, types of equipment
would be ERV or HRV and control mode would be either
Timed or ASHRAE.
Table 9. Smart Hub Parameters (Ventilation)
Parameter Description
Ventilation Control Mode - timed (default)
Ventilation Minutes
Per Hour
Parameter range is 0.0 - 60.0 minutes.
Default is 20.0 minutes. Can be adjusted in
increments of 1.0 minutes.
•
The system first tries to satisfy the ventilation
time by only ventilating while conditioning is
occurring.
NOTE
:
Continuous fan is NOT
considered conditioning.
• When the required time remaining to
ventilate for the hour does not equals the
amount of time remaining in that hour, the
system begins ventilation and does not
stop until the ventilation time requirement
is satisfied.
• When ventilating without a conditioning
demand, the ventilation output is active as
well as a continuous indoor fan demand.
• When ventilating with a conditioning
demand, the ventilation output is active with
the conditioning demand outputs.
Ventilation Rates
Thermostat ventilation CFM parameters are to be adjusted only after the HRV/
ERV set up is completed and the CFMs are known. Once the thermostat’s
CFMs are adjusted they are used with the thermostat’s timer algorithm to
determine how long to run the HRV/ERV and to change from low to high speed
if a 2-stage HRV/ERVs.
Ventilation Rate
Parameter range is 20 - 200 CFM. Default is
130 CFM. Can be adjusted in increments of
1.0 CFM.
Ventilation Rate for
Low Speed
Parameter range is 10 - 200 CFM. Default is
50 CFM. Can be adjusted in increments of
1.0 CFM.
Ventilation Rate for
High Speed
Parameter range is 20 - 500 CFM. Default is
130 CFM. Can be adjusted in increments of
1.0 CFM.
Table 9. Smart Hub Parameters (Ventilation)
Parameter Description
Ventilation
High Outdoor
Temperature Limit
Parameter range is 60 to 115ºF. Default is
100ºF. Can be adjusted in increments of
5ºF.
While the outdoor temperature is equal to or
higher than the setting for
Ventilation High
Outdoor Temperature Limit , ventilation
does not run. When locked out due to high
outdoor temperature, it will become unlocked
when either the outdoor temperature is
missing, or when the temperature reported is
1°F less than the
Ventilation High Outdoor
Temperature Limit setting when display units
are in Fahrenheit, or is reported as 0.5°C less
than lock out setting when the display units
are Celsius.
Ventilation
Low Outdoor
Temperature Limit
Parameter range is -20 to 55ºF. Default is 0ºF.
Can be adjusted in increments of 5ºF.
While the outdoor temperature is lower than
the setting for the Ventilation Low Outdoor
Temperature Limit , ventilation does not
run.
When locked out due to low outdoor tem-
perature, it will become unlocked when the
outdoor temperature is missing, or when the
temperature reported is 1°F higher than the
Ventilation Low Outdoor Temperature Lim-
it setting when display units are Fahrenheit,
or is reported as 0.5°C higher than lock out
setting when the display units are Celsius.
Ventilation High
Outdoor Dew Point
Limit
Parameter range is 45 to 80ºF. Default is
55ºF. Can be adjusted in increments of 5ºF.
While the outdoor dew point is higher than
the setting for the high outdoor dew point
limit, ventilation does not run.
When locked out due to high outdoor dew
point limit, it will become unlocked when the
outdoor dew point is missing, or when the
dew point temperature reported is 1°F less
than the lock-out setting when display units
are Fahrenheit, or is reported as 0.5°C less
than lock-out setting when the display units
are Celsius.
Ventilation Control Mode - ASHRAE
• In this mode the thermostat can assist the installer by validating
the ventilation CFMs are capable of meeting the ASHRAE required
ventilation volumes, but the thermostat has no ability to control CFM
from the HRV/ERV.
• The system first tries to satisfy the ventilation volume by only
ventilating while conditioning is occurring. Continuous fan is not
considered conditioning.
• The total volume of ventilation air is accumulated and stored to
compare against the target hourly ventilation volume (Vhr). The
accumulated value resets each hour.
• When the remaining required volume of ventilation air for the hour
divided by the fan only ventilation rate is equal to or greater than
the time remaining to ventilate for the hour and no conditioning is
occurring, the system begins ventilation using continuous fan and
does not stop until the target hourly ventilation volume requirement
is satisfied.
• When ventilating without a conditioning demand, the ventilation
output is active as well a continuous indoor fan demand.
• When ventilating with a conditioning demand, the ventilation output is
active with the conditioning demand outputs.
• When the system is ventilating, the user interface can indicate as
such by showing “ventilating” to the user on the home screen.