Watts Aerco Innovation 800 User Manual page 114

Innovation Hot Water Hot Water Boiler User Manual
Table 8-2: Water Heater Management Menu Item Descriptions
See section 8-6 for a range of choices and the default values.
MENU LEVEL &
ITEM
OPTION
1 WHM Mode
2 WHM Setpoint
WHM Nxt On VP
3
(See NOTE below)
WHM Nxt Off VP
4
(See NOTE below)
5 Lead/Lag Hours
6 WHM Upld Timer
7 Setpoint Setback
8 Setback Setpoint
Setback Start:
9 & 10
Setback End:
11 WHM Auto Mstr
12 WHM Auto Timer
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11/15/2016
CHAPTER 8 – WATER HEATER MANAGEMENT
WHM MENU
This menu option enables/disables the WHM mode and sets the unit
to function as a WHM Slave or WHM Master. Set the WHM mode
option to WHM Master for the controlling Master and to WHM Slave
for all other units on the Modbus network.
This is the temperature (°F or °C) that each unit in the WHM system is
trying to control to.
This is the Next On A/F Valve position (%) for the system. When all
enabled hot water boilers have a fire rate greater than this value, it is
time to enable another hot water boiler, if one is available. This value
should always be greater than the Next Off A/F Valve, and there
should be a reasonable spread between the 2 values.
This is the Next Off A/F Valve position (%) for the system. When all
enabled hot water boilers have a A/F Valve position less than this
value, it is time to shut down another hot water boiler, if one is
available. This value should always be less than the Next On A/F
Valve position, and there should be a reasonable spread between the
2 values.
This menu option is designed to spread the total number of run hours
accumulated on all units in the system so that each unit has
approximately the same number of run hours.
Sets the time between successive WHM Heartbeat OnAER data
transmissions.
Enables/Disables the Setpoint Setback feature which allows for the
substitution of an alternate Setpoint setting during certain time periods
of the day. The alternate Setpoint is entered into the Setback
Setpoint item and the time is entered in the Setback Start and
Setback End items.
This menu item specifies the setpoint temperature (°F or °C) that the
WHM system will maintain during time periods of low DHW demand.
These two menu items specify the start and end times that the
Setback Setpoint will be in effect. (12:00am – 11:59pm)
Password Level 2 (6817) must be entered in order to access the
WHM Auto Mstr menu option. This item Enables (Yes) or Disables
(No) an Automatic WHM Master Switch-Over function. When enabled
(Yes) the WHM will automatically select a new Master if the current
Master fails or loses power. This option is used with the WHM Auto
Timer option, described in the following section.
Password Level 2 (6817) must be entered in order to access the
WHM Auto Timer menu option. When the WHM Auto Mstr option is
set to Yes (Enabled), the WHM Auto Timer option allows the user to
select the elapsed time interval between failure of the WHM Master
and switch-over to a new WHM Master.
AERCO International, Inc. • 100 Oritani Dr. • Blauvelt, NY 10913
Phone: 800-526-0288
- INTERNATIONAL
DESCRIPTION
OMM-0120_0A
GF-128-I