MPO-IQ Installation, Operating, and Service Instructions

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High Limit IQ Option Cards add auxiliary temperature limit-rated controls to MPO-IQ
Boilers. High Limit IQ Option Cards plug into the IQ Option Panel and connect to a
system-mounted probe with a single Molex connection. High Limit IQ Option Cards
feature an adjustable set point and differential, as well as built-in diagnostics. Manual
Reset models are UL 353 for CSD-1 Compliance in US and Canada.
Kit Includes:
• High Limit IQ Option Card
• Limit-rated probe with 48” lead
• 1/2” well
• Probe retainer clip
• Instructions
Major Features:
• UL 353 approved
• Error code LED and display
• Temperature display
• Electronic adjustment of high limit and differential
Hi Limit IQ Option Card (Auto Reset): P/N 102717-01
Hi Limit IQ Option Card (Manual Reset): P/N 102720-01
APPENDIX A – OIL BOILER IQ CONTROL SYSTEM (continued)
The Display Kit provides a 3.5” LCD multi-color Touch Screen display for mounting in the plastic
“hood” above the front door of any MPO-IQ Boiler. The Display Kit communicates with the IQ Oil
Boiler Control and all installed IQ Option Cards. All boiler settings, status, and errors are displayed in
full text on the bright, backlit display. All adjustments are password protected to prevent unauthorized
access. Display will turn red and ash in the event of a boiler error or lock-out. Display features
full-text explanations of all features and settings, as well as help screens with diagnostics and
troubleshooting information.
3.5” LCD Touch Screen Display: P/N 102728-01
Kit Includes:
• 3.5” Multi-color LCD touch
screen
• Display software
• Enviracom gateway
• Wiring harness connectors
• Mounting bracket
• Instructions
Major Features:
• Fully assembled kit requires only 4
mounting screws and a single Molex
type connection
• Adjusts all Outdoor Reset IQ Option
Card parameters with graphics and help
information screens
• Full English descriptive alarm displays with
Recommended Corrective Action
• Real time trend displays
• Extensive Help screens to aid understanding
of terminology and setup
EnviraCOM Thermostats:
Standard EnviraCOM thermostats provide “heat demand” to
the IQ Oil Boiler Control and alerts the home owner of any
boiler control faults.
Connected thermostats provide a red LED and display the IQ
Oil Boiler Control, Oil Primary Control or IQ Option Card
Error Codes. A home owner is alerted to a problem even
before the water is cold. When an Outdoor Reset IQ Option
Card is installed with a setback thermostat, “leave” or “sleep”
modes are used to shifts the reset curve to save energy while
the home is in a reduced room temperature mode.
Honeywell VisionPro IAQ Setback Thermostat
(Honeywell P/N TH942lc1004)