Job:
TempTracker™
Engineer:
Contractor:
Prepared By:
Date:
2- and 4-Stage Controllers
For Hi Delta® and Raytherm®
Boilers & Water Heaters
TempTracker is designed to sequence
multiple boilers up to four total stages,
whether it’s one to four on/off boilers, two
two-stage boilers, or one boiler with up to
four stages. It is available factory-mounted or
loose on Hi Delta boilers, and loose on
Raytherm boilers. This control can be used
for space heating and hot water supply with
six application-specific modes to meet
various applications, including outdoor reset
for heating systems. It monitors and displays
inlet and outlet temperatures on all
applications as well as monitors outdoor
temperature when an outdoor reset mode is
utilized.
Features
Programmable Functions
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1-4 boilers/stages
Selectable P or PID logic
LCD display
NEMA 1 enclosure
Boiler-in and boiler-out water sensors
System water sensor
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6 programming modes
Adjustable outdoor reset
Min. system water temperature (70 °F)
Max. system water temperature
o Heating – 220 °F
o DHW – 190 °F
Outdoor air sensor
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Temperature differential (2 to 42 °F)
Boiler target (70 to 220 °F)
Outdoor cutoff (35 to 85 °F)
Boiler mass (low, med, high)
Stage-on delay (P mode)
(10 sec. to 8 min.)
System pump-off delay (0 to 20 min.)
Temperature measurement (°F or °C)
(Models B-27 and B-23)
Alarm ready (pilot duty)
24 VAC, 60 Hz, 3 VA Supply Power
Relay Ratings
Stage 1: 5A @ 120 VAC
Stages 2 to 4: 3A @ 120 VAC
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Model Information
B-26 2-stage setpoint
B-27 2-stage outdoor reset
B-21 4-stage setpoint
B-23 4-stage outdoor reset
Raypak, Inc. ƒ 2151 Eastman Avenue, Oxnard, CA 93030 ƒ (805) 278-5300 ƒ Fax (800) 872-9725 ƒ www.raypak.com
Catalog No.: 5100.30A
Effective: 2-1-08
Replaces: 8-1-07
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