Honeywell Y460A2003 Manual De Usuario

THE ROUND® CREATIVE SERIES Y460A2003 THERMOSTAT

3

69-1358

❑

Firmly tighten the screws.

❑

Push the excess wire back into the wall.

❑

Plug the hole with nonflammable insulation to 
prevent drafts from affecting the thermostat 
operation.

Y460A for heating/cooling system using separate RC-
RH terminals. If old thermostat has single R terminal, 
refer to jumper drawing in Subbase Wiring procedure.

❑

Set the heat anticipator indicator to 1.2 before 
mounting to prevent the anticipator from burning out 
during installation.

❑

Align the thermostat over the subbase and tighten 
the three captive mounting screws (see Step 4). 
These captive mounting screws complete the 
electrical connections to the thermostat.

❑

Be sure the thermostat adjustable heat anticipator is 
set correctly to accurately control the temperature.  
An incorrect setting (if too high) can result in wide 
room temperature swings or (if too low) burn out the 
anticipator, which voids the thermostat warranty.

❑

Make sure you have the current draw (anticipator 
setting) for your system. This is the number you 
wrote in the box in Step 3. If you were unable to find 
the current draw for Step 3, this information can be 
found printed on the primary control at the furnace or 
boiler. The primary control is usually a gas valve, a 
relay or burner control box, Aquastat® Controller or 
zone valve with the thermostat wires connected to it. 
These controls are usually located behind the 
furnace cover; see the illustration. 

❑

If the current rating is still unavailable:

— Remove the W wire from the subbase.

— Connect one probe of an ac ammeter (0 to 2.0A, 

for example) to the W wire and connect the other 
probe to the W terminal.

EXAMPLE:  FOR RC TO RH 
JUMPER,  STRIP WIRE 
END LONG ENOUGH TO 
JOIN BOTH TERMINALS.

M1277A

M13418

2

POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD
PROTECTION AS REQUIRED.

IN HEATING, THE FAN IS CONTROLLED BY ANOTHER CONTROLLER, 
SUCH AS A HONEYWELL L4064 FAN AND LIMIT CONTROLLER OR 
FAN TIMER.

1

1

1

COOL

HEAT

O

F

F

FAN

ON

AUTO

G

R

R

H

Y

W

C

HEATING 
RELAY OR
VALVE COIL

COOLING
CONTACTOR
COIL

FAN
RELAY

2

LONGER

.15

.12

.2

.6

.8

1.0

.5

.4

.3

HOLE SUITABLE FOR 
PENCIL POINT 
TO MOVE INDICATOR

HEAT 
ANTICIPATOR
INDICATOR

SCALE

M1368

8406 

24 Vac 50/60 Hz

0.4 AMP

30 VAC

0.2

 A

M

P

T

F

T

F

SHOWS
CURRENT 
DRAW

SHOWS 
VOLTAGE
RATING

M6116B

FROM MAIN
FUEL SUPPLY

SHOWS
VOLTAGE
RATING

TO
BURNER

SHOWS
ANTICIPATOR
SETTING

SHOWS
VOLTAGE
RATING

SHOWS
ANTICIPATOR
SETTING