24
Multi-MOD Platinum with Space and Scheduling Installation and Operation Manual
HT# 059299-00
A
DISPlAY STAGe MODulATION STATuS
• ---
Stage Mode is set to Off due to no call for heat/cool .
• 97% Stage Mode is set to Auto . The Multi-MOD modulate the stage to the indicated percentage .
• ON
Stage Mode is set to ON . The stage firing is at 100% (stage in bypass) . See "Mode" on page 39 .
• OFF Stage Mode is set to OFF . The stage is unavailable or does not exist .
• m95% Stage Mode is set to Manual . Manual modulation is set to 95% .
• C/E The Extension Module stage is NOT communicating back to the Multi-MOD .
• L/O The stage Lockout input terminals are shorted . See "Lockout Inputs Wiring" on page 19 .
DISPlAY MeSSAGeS
The Multi-MOD Platinum normal display layout uses the second row from the top for operating messages .
The following is a list of the most common Message Display Line information:
Ack Received
The Internet control has acquired connection to the Heat-Timer communication
server . This message is displayed for 2 seconds after one minute of power up .
BST: 170˚F
Boost is active . The new target temperature is 170°F . See "Boost and Early
Shutdown" on page 34 .
DHW Call (180˚F) A DHW Call is active . The DHW Set Point is 180˚F . See "DHW Set Point" on page 29 .
Fast Cool Down
ESD (Early Shutdown) is active . The new target is equal to the Fast Cool Down
setting . See "Fast Cool Down" on page 30 .
Holding Until 150˚F The lead stage is in Last-Stage-Hold . This example shows that the lead stage will
turn off when system temperature reaches 150˚F . See "Last-Stage-Hold" on page 37 .
Internet Control
The control is an Internet control and the display is in Screen Saver Mode . See
"Internet Communication" on page 45 .
Lag Delay: 123
The lead stage is at 100% and the remaining purge time to start the lag boiler in
seconds is 123 . See "Lag Delay" on page 37 .
Network Panel
The control has a communication package installed and the display is in Screen
Saver Mode .
Prove Failure
After boilers have run for a while, Prove signal was opened . All boiler outputs are
de-activated . However, the System relay will remain energized . See "Prove Wiring"
on page 19 .
Purge Delay: 23
The current boiler is in purge and the remaining purge time in seconds is 23 . See
"Purge Delay" on page 36 .
Shutdown Active
The Shutdown input is shorted/active . No stages will be active . See "Shutdown
Wiring" on page 18 .
Shutdown by EMS The EMS set point signal is below 2mA or above 22mA . See "EMS Input Mode" on
page 27 .
System Run-On: 46 The System output is ON for the System Run-On Delay . The remaining run-on is 46
seconds before turning off . See "System Run-On" on page 34 .
Waiting for Prove The System output is ON and the prove Input is open . No stage output is active . See
"Prove Wiring" on page 19 .
