Worcester DT20RF User Manual

TABLE OF CONTENTS
TECHNICAL DATA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
DIGISTAT ROOM THERMOSTAT . . . . . . . . . . . . . . . . . . . . . . . . . . .3
GENERAL INFORMATION . . . . . . . . . . . . . . . . . . . . . . . . . . .3
ADVANCED SETTINGS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
FAULT DIAGNOSIS/ BATTERY REPLACEMENT . . . . . . . . .9
DT20RF RECEIVER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
GENERAL INFORMATION . . . . . . . . . . . . . . . . . . . . . . . . . .10
OPERATING CONTROLS . . . . . . . . . . . . . . . . . . . . . . . . . . .11
PRE-PROGRAMMED SETTINGS . . . . . . . . . . . . . . . . . . . .12
PROGRAMMABLE SETTINGS . . . . . . . . . . . . . . . . . . . . . .13
INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20
DIGISTAT INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21
SETTING UP THE RF LINK . . . . . . . . . . . . . . . . . . . . . . . . . .21
MOUNTING THE DIGISTAT . . . . . . . . . . . . . . . . . . . . . . . . .23
TO CANCEL SIGNAL STRENGTH MODE . . . . . . . . . . . . .24
TO CHECK PREVIOUSLY INSTALLED UNIT . . . . . . . . . . .25
MAINTENANCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .28
DT20RF PROGRAMMER
INSTRUCTION MANUAL
8 716 115 495a (02.2009)
OPERATING & INSTALLATION
INSTRUCTIONS
1
8_716_115_495a 9/2/09 11:49 Page 3

Worcester DT20RF Specifications

General

Display	LCD
Programming	7-day programmable
Wireless	Yes
Frequency	868 MHz
Accuracy	±0.5°C
Power Supply	2 x AA batteries
Mounting	Wall-mounted
Wireless Range	30m (open space)
Battery Life	Up to 2 years
Compatibility	Compatible with Worcester Bosch boilers