Watts 654 Specification sheet


 of2 ©203WattsRadiant

 



 





 








Snow/Ice
Sensor090
Outdoor
Sensor
070
Supply
Sensor
082
Relay
System
Pump
Relay
Optional
tN4
Communication
Snow
Sensor095
Slab
Sensor072
Slab
Brn
Slab
Brn
Com
BlkYel Blu Red
Com
BlkYel Blu Red
Or And/Or
Snow
Sensor
095
















C tN4
Modulating
Boiler
TT –+
Transformer
L
NC
R
Slab
Brn
+
Mod tN4Aux Ht RC
Bret
Out/
Com–
BlkYel Blu Red Sup
No Power

5V(ac)


Backof
Control

Thecontrolislocallylockedandtheaccess
levelcannotbechanged.SettoLockwhen
installationhasbeencompleted.

Thecontrolisunlockedandtheaccess
levelmaybechanged.GototheToolbox
menutochangetheaccesslevel.Setto
Unlockduringtheinstallationprocess.
Meets Class B: ICES & FCC Part 15
Power: 24 V (ac) ±10%, 60 Hz, Class 2,
16 VA standby, 100 VA fully loaded
Relays: 24 V (ac) 2 A, 3.5 A combined
1058-04
Switch
Settings
www.WattsRadiant.com
Order #81016552
Designed and assembled in Canada
Lock
Unused
Unlock
ON
2
H1226A
Snow Melting Control 654

A Watts Water Technologies Company
Springeld,MO•Tel.(800)276-249•Fax:(47)864-86•www.wattsradiant.com
Burlington,ONT.•Tel.(905)332-4090•Fax:(905)332-7068•www.watts.ca
IS-WR-Snow_Melting_Control-654328  ©203WattsRadiant
 




ENTER
HomeButton
Returntothe
HomeScreen
Pressandholdfor3
secondstoaccessthe
programmingmenus.
Touchtogotothe
nextsetting
Touchtoquicklyenter
theViewmenu
Touchto
adjustsettings
Operation
Field
StatusField
Touchtodisplay
RunTime,
Outdoor&Slab
Temperature
Touchto
MeltorStop
Touchtoturnsystem
offwhileaway

 

Selectthecontrolapplicationmode.
PWM=HydronicPulseWidthModulation.
BOIL=Hydronicboilerheatssnowmelting
system.
MIX=Hydronicmixingvalveorinjection
pumpheatssnowmeltingsystem.
ELEC=Electricsnowmelt.
090=TandemSnow/IceDetection
Default=PWM

SelectifaSnow/IceSensor090orSnow
Sensor095isinstalled.
Default=090

SelectifaSlabSensor072isinstalledto
measuretheslabtemperature.
Default=ON

Selectiftheslabshouldbeprotectedfromlarge
temperaturedifferentialstoavoidcrackingthe
concreteduetohightensilestress.
Default=ON
TheSystemMenuprovidessettingsonhowtoconfigureandoperatethemechanicalequipment.
 

SelectiftheOut/Bretwiringterminalis
connectedtoanoutdoorsensororaboiler
returnsensor.
Default=OUT

EconoMeltallowstheusertomechanically
removesnowthenmanuallystartthesystem
tomeltthethinsnowlayerorice.
Default=OFF

Selectifthesystempumplocatedonthe
tekmarNet®SystemControlshouldoperate
whenthesnowmeltzoneisheating.
Conditions:ApplicationModeissettoPWM,
BoilorMixandBoilerTypeissettoCTRL
(tN4control).
Default=ON

Selectiftheauxiliaryrelayshouldfunction
assystempumporasanalert.
Default=SYS

Selecttolimittheamountofmeltingrun
time.
Default=3.0days