heat-timer Multi-MOD Platinum, Инструкция по установке и эксплуатации, Страница: 29 / 60

Multi-MOD Platinum with Space and Scheduling Installation and Operation Manual
29
HT# 059299-00
A
• If the Prove input was opened, the control shall turn all the stages off . In
addition, it will display a message indicating this status . See "Display
Messages" on page 24 .
• DHW (Domestic Hot Water) options are used when the heating system
provides domestic hot water in addition to building heat . These options
control the System output and the target temperature during a DHW Call .
on a DHW Call, the Multi-MOD Platinum raises the target to the DHW
Set Point . The Multi-MOD Platinum will display a message indicating the
DHW Call and the new target . See "Display Messages" on page 24 and
See "DHW Set Point" on page 29 .
• The DHW No Priority option allows the System output to remain
energized during a DHW call . However, during Shutdown, Summer, or
when Outdoor Cutoff situations a DHW Call will keep the System output
off . When the DHW call ends, all active stages will modulate down then
turn off .
• The DHW With Priority option turns off the System output during a
domestic hot water call for a priority period of one hour . If after the priority
period the DHW call is still active, the System output will energize and the
DHW Set Point will remain as the target until the DHW Call ends .
• The DHW Using System option is similar to the DHW No Priority option in
that it allows the System output to remain energized during a DHW call .
However, during Shutdown, Summer, or when Outdoor Cutoff situations
a DHW Call will turn the System output on . When the DHW call ends, all
active stages will modulate down then turn off . The System output will
turn off after the Run-On period .
WARNING
When prove is selected, do not
remove the factory installed
Prove jumper unless it is
replaced by a prove signal .
If the Prove input is not closed/
shorted, the Multi-MOD
Platinum will NOT activate the
stages .
The Prove input cannot be
used as a safety limit . All
equipment must have its
own certified limit and safety
controls as required by code .
DHW SeT POINT
(Available with any of the DHW Priority Options Only)
Adjustable from 140ºF/60ºC to 200ºF/93ºC Default: 180ºF/82ºC
PReSS TO SeleCT: /<System Startup>/ Sensor Type/.../ Prove-DHW/DHW Set Point
• This set point is used as the system target during DHW Calls . See
"Prove/DHW Mode" on page 28 .
---- DHW SET POINT --
180 F
[ ]
SeNSOR FAulT
Shutdown, All On Default: All On
PReSS TO SeleCT:
/<System Startup>/ Sensor Type/.../ Prove-DHW/Sensor Fault Mode
• The Sensor Fault determines the operating status of all output stages that
are set to Auto when a sensor reads
Short
or
Open
.
SENSOR FAULT MODE
Shutdown
All On
Set Point Mode
• When All-On is selected, the Multi-MOD Platinum will turn all stages set to
Auto to 100% firing when the System sensor reads
Short
or
Open
.
• When Shutdown is selected, the Multi-MOD Platinum will turn all stages
Off when the System sensor reads
Short
or
Open
.
• The Outdoor Sensor
Short
or
Open
status will not allow the Outdoor
Cutoff to function in Set Point mode . In this case, the control will
modulate the boilers to maintain the Set Point .