DEFAULT SETTINGS & MENU ITEM DESCRIPTIONS
HeatNet Control V3
Page 111
MASS
MEDIUM
LOW, MEDIUM,
HIGH
This defines the mass of the boiler. This value is not used with this
version and is displayed only for reference and future applications.
Check the revision history sheet on the website.
TURNDOWN
5:1
3:1-10:1
This is the boiler turndown. For the Torus Series, the default is 5:1
and determines the minimum firing percentage.
10:1 = Min 10%, 5:1 = Min 20%, 4:1 = Min 25%, 3:1 = Min 33%.
Not all Torus boilers can be set for 10:1 turndown. The high
turndown percentage choices are determined by the boiler model.
NOTE: The boiler must be set up for operation at this Turndown
rate using the Calibrate settings. This TURNDOWN setting only
controls the displayed percentage.
This is the procedure needed to setup a High Turndown Torus
from a new RBI board
1) Turn the boiler off
2) Plug in the HT Config Resistor
3) Turn the boiler on
4) Set the boiler to the correct Torus model
5) Power cycle the boiler
6) Set the boiler to the correct Torus model (again)
7) Power cycle the boiler
Torus J7 configuration resistor is ONLY checked at power up
when a Torus boiler is selected (to prevent incorrect detection
with other resistors or a common supply sensor). The first
time the boiler is powered up (step 3), the board is probably
an FIII MB/MW 750 (default). Setting it to a Torus (step 4)
enables the Torus J7 configuration resistor check at power up
(step 5). Selecting the correct model again (step 6) will save
the detected HT Config J7 resistor. The last power cycle
(step 7) will clear any Torus J7 configuration resistor error
messages.
ALTITUDE
LESS THAN
2000FT
LESS THAN 2000
FT,
GREATER THAN
4000 FT
This is the Altitude in feet of where the boiler is installed. On
Ametek Blowers it limits the blower output for low altitudes and
allows a higher output at higher altitudes. This setting sets the upper
range limit of the MAX VFD setting.
OPTION:
NONE
NONE
DUAL FUEL
BASE LOAD
When set to DUAL FUEL, input T3/ RESERVED, OPTION input
is used to control the DUAL FUEL OPTION relay via K8 contacts
on J4.2 &.6. When set to NO OPTION the input T3/RESERVED,
OPTION relay K8 on J4.2 &.6 is inactive.
When set to BASE LOAD, the Option Relay K8 on J4.2 &.6 is used
as an enable contact for a base load boiler. The J4.1 &.5 0-10VDC
/4-20mA output is used to modulate the base load relay if it is of the
modulating type.
The limitation of the OPTION menu is that Dual Fuel cannot be
used with a Base Load boiler.
BLOWER SETTINGS
(AMETEK BLOWER)
BUTTON
ACCELERATE
3.0 %/s
0.1
– 10.0 %/s
If a signal is sent to increase the blower rpm, the blower’s
acceleration speed will change at this rate until its rpm is equal to
the signal sent. % Per second. Setting this value too high may cause
overshooting of the blower rpm and temporarily over firing of the
boiler. Setting this too low will slow down the response of the boiler
to get to setpoint.
DECELERATE
3.0 %/s
.1
– 8.0 %/s
If a signal is sent to decrease the blower rpm, the blower’s
deceleration speed will change at this rate until its rpm is equal to
the signal sent. % per second. Setting this value too low will slow
down the response of the boiler to get to setpoint. Setting this value
Содержание HEATNET 3.0 Torus Series
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