Watts Aerco INN 1060N - Page 50

Innovation - Edge [i] Installation, Operation, Maintenance Manual
CHAPTER 3 – OPERATION
OMM-0143_A • GF-216 • 9/6/2019 Technical Support • (800) 526-0288 • Mon-Fri, 8 am - 5 pm EST Page 50 of 170
Purge Timer
Numeric Entry
Allows adjustment of the pre-ignition purge time (5 to 60
sec.).
Post Purge Timer
Numeric Entry
Allows adjustment of the post purge time before the unit
shuts down (0 to 60 sec.).
Main Menu → Advanced Setup → Performance → Fire Control → Ignition Control
Ignition Position
Numeric Entry
Sets the air fuel valve position at which the unit will operate
during the ignition sequence (5% to 60%).
Ignition Blower Voltage
Read Only
Displays the actual blower voltage during ignition.
Ignition Voltage Offset
Numeric Entry
Allows an adjustment to the blower voltage during ignition
(-5.00 to 5.00).
Low Fire Timer
Numeric Entry
Specifies how long to remain in the low fire position after
ignition, before going to the desired output (2 to 600 sec.).
Ignition Hold Timer
Numeric Entry
Sets the length of time the unit stays in ignition position (0
to 60 sec.).
IGN Time Setting
Read Only
Displays the maximum time between confirmation of gas
valve opening (POC) and a stable flame detected.
Main Menu → Advanced Setup → Performance → Fire Control → Operating Control
Start Valve Position
Numeric Entry
Specifies the valve position at Start Level (0 to 40%).
Stop Valve Position
Numeric Entry
Specifies the valve position at Stop Level (0 to 40%).
Max Valve Position
Numeric Entry
The maximum valve position for unit (40 to 100%).
Standby Blower Voltage
Numeric Entry
Specifies the blower voltage in Standby Mode, during
which the blower motor remains “ON” at low speed, to limit
power cycles. AERCO recommends keeping the default,
however, may set this between 2.00 and 0 volts on
individually vented units in positive pressure mechanical
rooms to compensate (0.0 to 10.0V).
Air Compensation
Enable/Disabled
Innovation Only!
Vlv Position Change Rate
Numeric Entry
Defines the rate at which the valve position will progress
from one step to the next (0.5 to 60 sec.).
Skip Range Cntr
Numeric Entry
Together, these 3 parameters define an optional Fire Rate
the Controller will skip-over (Skip Range Cntr = center of
the range). These can be used to reduce objectionable
noise at a certain Fire Rate, if there is no other remedy.
Skip Range Span
Numeric Entry
Skip Speed
Numeric Entry
Main Menu → Advanced Setup → Performance → Fire Control → Anti-Cycling Control
On Delay
Numeric Entry
Sets the minimum time a unit must stay off after shutting
down or going into standby (0 to 600 sec.).
Slow Shutdown
Enable/Disabled
Enable/disable the slow shut down feature once Off Delay
threshold is achieved.
Off Delay
Numeric Entry
Defines a Shutoff delay, during which time the unit remains
at minimum fire rate after the unit has sequenced to
shutoff. It is activated only when Off Delay Threshold is
reached (0 to 9999 secs). (Slow Shutdown = Enabled).
Off Delay Threshold
Numeric Entry
The Fire rate that activates the Off Delay function
(40 to 100 %). (Slow Shutdown = Enabled).
Shutoff Delay Temp
Numeric Entry
Specifies the number of degrees above setpoint that the
outlet temperature can rise without triggering a unit shut
down (0 to 25°F).
Demand Offset
Numeric Entry
The temperature offset from setpoint before a unit may
come online. (0°F to 25°F). This can reduce excessive
cycling in AUTO mode. When above 0, the unit will not turn
on again until Valve Position In reaches the Start Level
value AND the outlet temperature goes below Demand
Offset; the unit will fire at the ignition valve position or
below for 1 minute. If this entry equals 0, the unit will turn
on when the Valve Position In = Start Level.