Setup Menu - Thermal Solutions EVCA SERIES Installation, Operating And Service Instructions

APPENDIX D (Cont...) - TSBC
D.

SETUP MENU

Factory
Display Range/Choices
Settings
WWSD of Boiler
WWSD
Off WWSD of Sys
LL Start
90
Trigger
LL Stop
25
Trigger
Boiler
120
On Delay
Boiler
Off
30
Delay
%FR On
1
Delay
%FR Off
1
Delay
High Fire
100
Limit
Deg/Min
1
Hold Off
Cutback Boiler
100 to 240 F
Setpoint 220
Net Start
120 16 to 420 (s)
Dwell
Limit
Fault 5
Time
Rotation Disable
Rotation
168
After
Form # TSFP-001 Rev. H 4/12
Description
Specifies Warm Weather Shut-Down (WWSD) control of boiler and/or system pump.
Off:
Off
WWSD of boiler:
WWSD of Sys Pump:
Pump
Both
Both:
Specifies the percent of maximum modulation rate the running boiler(s) must reach
50 to 100 %
before calling upon additional boilers for help.
Specifies the percent of modulation rate that the running boiler(s) must be below
0 to 50 %
before shutting down a lag boiler
Time Delay after On Point setpoint has been reached before starting the next boiler.
Short time delay to prevent nuisance starts due to momentary temperature and
0 to 900 (s)
modulation rate swings.
Time Delay after the Off Point setpoint before stopping the next boiler. Short time
delay to prevent nuisance stops due to momentary temperature and modulation rate
0 to 900 (s)
swings.
Time Delay after the modulation rate is above the LL Start Trigger before starting the
next boiler. Shorten time delay to avoid temperature going below setpoint as a result of
1 to 30 (m)
a slow process change.
Time Delay after the modulation rate is below the LL Stop Trigger before stopping
the next boiler. Shorten time delay to avoid temperature going above setpoint as a
1 to 30 (m)
result of a slow process change.
High modulation rate limit for all boilers on the peer-to-peer network as long as at
40 – 100 % least one boiler is still not running. After the last boiler has started the modulation
rate is released up to 100.
Specifies a temperature rate of change that inhibits the next boiler being started or
stopped. If the temperature is increasing faster than this rate of change, the next
1-10 F
boiler is not started. Also, if the temperature is decreasing faster than this rate of
change, the next boiler is stopped.
Boiler outlet temperature above the Cutback Setpoint causes the modulation rate to
be reduced proportionally to help avoid a high temperature limit lockout. This
parameter is significant while the modulation rate of the boiler is controlled
according to the remote system temperature sensor, remote input (C+, C-) or Modbus
(40006).
The Net Start Dwell Time Delay specifies the length of time the peer-to-peer network
will wait for the Main Fuel Valve Energized input (CS) to be energized after a boiler
call for heat. If the Net Start Dwell time is exceeded before the main fuel valve is
open, the next boiler Call for Heat is immediately initiated.
The Limit Fault time Delay specifies the length of time the peer-to-peer network will
wait for the boiler limits input (CA) to be energized after a boiler Call for Heat. If the
3 to 120 (s)
Limit Fault time is exceeded before the limits are energized, the next boiler Call for
Heat is immediately initiated.
Specifies number of hours (cumulative) a lead boiler runs before passing the lead to
another boiler.
Disable
Lead role will be surrendered earlier if the lead boiler is placed into manual mode, is
Enable
run remotely (mode 6), fails to start, is "blind" (all input sensors failed), or is
satisfying a DHWP request
Specifies number of hours (cumulative) a lead boiler runs before passing the lead to
8-720 (hr)
another boiler.
SETUP Menu
TM
Ignores Warm Weather setpoint
When Outside Air Temperature (OAT) is higher than the
WWSD setpoint, inhibits boiler start
When OAT is higher than the WWSD setpoint de-energize
System Pump output (SO)
When OAT is higher than the WWSD setpoint, inhibit Call
for Heat and de-energized system pump output (SO)
89
Page 14 of 22