C-more controller for benchmark, innovation & kc – AERCO C-More Controls Manual June 2010 User Manual
Page 39

C-More Controller for Benchmark, Innovation & KC
USER MANUAL
04/22/14
AERCO International, Inc. • 100 Oritani Dr. • Blauvelt, New York 10913
Page 39 of 162
OMM-0032_0E
Phone: 800-526-0288
GF-112
Table 3-1: Menu Item Descriptions - Continued
MENU LEVEL & OPTION
DESCRIPTION
Water Heater Management (WHM) Menu (Continued)
Setback Setpoint
This is the setpoint temperature (°F) that each unit in the WHM system
is trying to control to during periods of low (or no) DHW demand. The
setback setpoint temperature can be set from 40°F to 220°F (Default =
130°F)
Setback Start
Setback End
Specifies the start and end times that the Setback Setpoint will be in
effect. (12:00am – 11:59pm)
Password Level 2 Options:
WHM Auto Mstr
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 Mater fails or loses power. Default = No
(Disabled)
WHM Auto Timer
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. The default for this option is 30 seconds. The allowable entry
range is 10 seconds to 120 seconds (Default = 30 seconds.
WHM Min Addr
WHM Max Addr
Specifies the Minimum and Maximum Modbus addresses for the
Innovation Water Heaters on the network. To simplify addressing,
assign consecutive address numbers 1 through 8.
WHM On Delay
WHM Off Delay
Specifies the WHM On and Off time delays associated with the Next
ON VP and Next OFF VP menu options. Therefore, if the Next ON VP
or Next OFF VP is at its preset Valve Position (%) for the specified
Delay period, another heater will be turned ON or OFF. This is done to
prevent cycling units on and off during short changes in load. Range =
30 to 300 seconds (Default = 60 sec.)
WHM Min Units
Specifies the number of units in the WHM system. Unit range is 1
through 8. Default = 1.
WHM Warmup Time
Specifies the warm-up time in minutes for the system. This value can
be set from 0 to 300 minutes. (Default = 30)
WHM ON Timeout
Specifies the time that the WHM waits to see if a unit that it just turned
On is actually running.
WHM Valve State
Displays the status of the WHM Sequencing Valve.
(1 = ON, 0 = OFF)
1 WHM Units 8
__ __ __ __ __ __ __
This menu item shows the current status for each of the units being
controlled by the WHM (8 max.). The characters in the display are
defined as follows:
- = Off Line, * = Not available (fault, etc.), 0 = Off, 1 = On,
A = Lead On, a = Lead Off, B = Lag On, b = Lag Off
The following example shows the status of 4 units (1 thru 4) being
controlled by the WHM:
1 WHM Units 8
_ 1_ _0_ _1_ _*_ _A_ _b_ ___ ___
Where: Unit 1 & 3 = On, Unit 2 = Off, Unit 4 = Not available,
Unit 5 = Lead On, Unit 6 = Lag Off