Watts 519 Installation & Operation Manual - page 15
5of6
©203WattsRadiant
Symptom
Look for...
Corrective Action
Displaypowering
onandoff.
Measurevoltageat
wiringterminalsR
andC.
Thepowersupplytransformer
mayhavelimitedVAcapacity.A
transformerwithalargerVAratingis
recommended.
Thermostatdoes
notheat.
ModeOff
ThermostatmustbeinModeHeatin
ordertoprovideheating.
Radiant Thermostat 519 Air/Floor, Digital, 24V, incl floor sensor 079
Literature
IOM-WR-Radiant_Thermostat-59,PG-WR-Radiant_Thermostat-59,
ES-WR-Radiant_Thermostat-59,IS-WR-Radiant_Thermostat-59
Control
Microprocessorcontrol.Thisisnotasafety(limit)control
Packagedweight
0.6lb.(270g)
Dimensions
3-/6”Hx3”Wx5/6”D(94x76x24mm)
Enclosure
WhitePVCplastic,NEMAType
Approvals
MeetsClassB:ICES&FCCPart5
Ambientconditions Indooruseonly,32to22°F(0to50°C),RH≤90%non-
condensing
Powersupply
0to30V(ac/dc),50/60Hz,.8VAstandby,
56VAmaxfullyloaded,Class2
Relay
30V(ac/dc)2A,Class2circuits
Sensor
NTCthermistor,0kΩ@77°F(25°C±0.2°C)ß=3892
–Included
FloorSensor079
Floor Sensor 079, extra
Packagedweight
0.lb.(50g)
Dimensions
3/6”ODx-/2”(5mmODx38mm)
SensorMaterial
36stainlesssteel,0’(3m)24AWG,300voltPVCinsulatedZipcord
Approvals
CSACUS
Operatingrange
-58to22°F(-50to05°C)
Sensor
NTCthermistor,0kΩ@77°F(25°C±0.2°C)ß=3892
Frequently Asked Questions
Technical Data
WARNING: This product contains chemicals
known to the State of California to cause cancer
and birth defects or other reproductive harm.
For more information: www.watts.com/prop65