Raypak Y-241 User Manual
Designed for use with single or multiple space heating or hot
water supply systems, the Y-200 is offered in 4- and 8-stage
configurations and is available loose or factory-mounted on
Hi Delta or Raytherm boilers, and loose on MVB boilers. It is
expandable up to 40 stages using an 8-stage master control
with up to four 8-stage slave controls. It monitors and displays supply temperature on all applications including outdoor temperature when the appropriate reset mode is selected. In addition, Y-200 offers state-of-the-art PID logic and
selectable lead-lag, manual override and outdoor reset.
Options include a build-in modem, remote set point and
LonWorks® module that controls multiple boilers with one
LonWorks control interface. Housed in a NEMA 3R enclosure,
the Y-200 is suitable for outdoor installations.
Y-200
Multi-Stage Sequencer
Features
•
4 or 8 boilers/stages, expandable to 40
•
Selectable P or PID logic
• LCD display
•
NEMA 3R enclosure
• System water and outdoor air sensors
• 365-day time clock
• Auto/manual lead-lag and enable/disable functions
•
Manual override
•
Password protection
•
120 VAC, 60 Hz, 0.5A supply power requirement
• Relay Ratings - 10A @ 250 VAC
•
Lockable enclosure
• UL and cUL approved
Options
•
Remote setpoint (2-10 VDC or 4-20 mA)
•
Modem
•
Auxiliary contacts
•
Alarm bell
•
LonWorksT module
Only multi-boiler sequencer LonMarkT certified for
LonWorks protocol interoperability. Proper order for
Standard Network Variable Types (SNVT_) tags ensures
smooth implementation. No external gateway required.
Programmable Functions
•
Adjustable outdoor reset ratio (0.01:1 to 20:1)
•
Min. system water temperature (40 °F)
• Max. system water temperature (235 °F)
•
Automatic/manual lead-lag (0 to 100 hrs.)
• Control band (0.5 to 10 °F)
• Initial setpoint (40 to 235 °F)
• Outdoor cutoff (32 to 200 °F)
•
Outdoor cutoff deadband (1 to 10 °F)
•
Morning boost
•
Alternate setpoint
• Night setback
•
Adjustable PID
• Boiler-on delay (0 to 5 min.)
•
Stage-on delay (0 to 60 sec.)
•
System pump-off delay (0 to 10 min.)
•
Temperature measurement (°F or °C)
Ordering Information
Option No. Description
Y-241 4-stages
Y-281 8-stages
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