Submittal Sheet

Job __________________________
Designer ______________________
Contact _______________________
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02/15
Zoning Replaces: New
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© 2015 554_C - 02/15
1 of 2
A Watts Water Technologies Company
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tekmarNet communication compatible
Touchscreen technology
Radiant floor heating
Programmable schedule
Network schedule master or member
Optimum start
Temporary hold
Air group master
Zone synchronization
2 auxiliary sensor inputs
Room temperature limiting
Away scene key
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The tekmarNet Thermostat 554 is a communicating touchscreen thermostat designed to operate one heating stage, one cooling stage,
and a fan. The heating stage can be either hydronic or forced air and the cooling stage is an air conditioner. There are two auxiliary
sensor inputs available to measure room, floor, outdoor, coil or duct temperature. The optional floor sensor allows precise heating of
radiant floors by controlling the floor temperature and maintaining the desired room air temperature. The large touchscreen allows you
to easily adjust 7-day programmable schedules and room temperature to optimize comfort and energy savings. The 554 can connect
to tekmarNet controls using two or four wires or it can operate as a stand-alone thermostat using three wires.
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An auxiliary sensor must be used to measure any auxiliary sensor temperatures.
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One Stage Heat, One Stage Cool, One Fan
Literature 554_A, 554_C, 554_D, 554_J, 554_Q, 554_U
Control Microprocessor control. This is not a safety (limit) control.
Packaged weight 0.8 lb. (350 g)
Dimensions 5" H x 3-1/4" W x 15/16" D (127 x 82 x 23 mm)
Enclosure White PVC plastic, NEMA type 1
Approvals Meets Class B: ICES & FCC Part 15
Ambient conditions
Indoor use only, 32 to 122°F (0 to 50°C),
RH ≤90% non-condensing
Power supply 24 V ± 10%, 60 Hz, 1.8 VA standby, NEC / CEC Class 2
Relays 24 V (ac), 2 A
Temperature sensor NTC thermistor, 10 kΩ @ 77°F (25°C ±0.2°C) ß=3892
–Included None
–Optional tekmar type # 070, 071, 072, 073, 076, 077, 079, 082, 083, 084
Warranty Limited 3 Year (See 554_D for full warranty)
Side ViewFront View
5"
(127 mm)
3-1/4"
(82 mm)
15/16"
(23 mm)
Mounting Base
C
tN2
tN4
tN2
R
Rh W Rc Y G S1 S2 Com
No Power
1-1/2"
(38 mm)
9/16"
(14 mm)
CL
1-7/8"
(47 mm)
3/4"
(19 mm)
CL
CL
13/16"
(20 mm)
4"
(102 mm)
2-1/2"
(64 mm)
29/32"
(23 mm)
3-1/4"
(83 mm)