© 2012 557_D - 08/12
47 of 48
A Watts Water Technologies Company
Error Message Description
ERROR AT THERMOSTAT
There is an error on a different thermostat or setpoint control connected
to the tekmarNet
®
system and not on this thermostat.
01 to 24 = Thermostat only network
Go to the thermostat with the listed address to correct the error.
ERROR AT THERMOSTAT
There is an error on a different thermostat or setpoint control connected
to the tekmarNet
®
system and not on this thermostat.
b:01 to b:24 = boiler bus
1:01 to 1:24 = bus 1 or mix1 bus
2:01 to 2:24 = bus 2 or mix2 bus
3:01 to 3:24 = bus 3 or mix 3 bus
Go to the thermostat with the listed address to correct the error.
ERROR AT SYSTEM CONTROL
There is an error on the tekmarNet
®
system control connected to
the tekmarNet
®
system and not on this thermostat.
Error Messages (5 of 5)
Technical Data
tekmarNet
®
Thermostat 557; Radiant Floor, 2 Heat Pump/Cool, Backup, Humidity
Literature 557_A, 557_C, 557_D, 557_Q, 557_U
Control Microprocessor control. This is not a safety (limit) control
Packaged weight 0.9 lb. (400 g)
Dimensions 4-1/2” H x 4-3/4” W x 7/8” D (114 x 120 x 22 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
Environmental
Compatible with chlorinated swimming pool environments. Not
compatible with ammonia (animal barns), methanol, ethanol, acetone.
Power supply 24 V ±10%, 60 Hz, 2.0 VA standby, NEC / CEC Class 2
Relays 24 V (ac) 2 A
0-10 Vdc terminal 3.3 V (dc) for humidity sensor power, 3.0 mA max
Humidity sensor 0 to 90% ± 3% RH
Temperature sensor
NTC thermistor, 10 kΩ @ 77°F (25°C ±0.2°C) ß=3892
– Included None
– Optional tekmar type # 070, 072, 073, 076, 077, 079, 082, 084, 086
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