
DELTA-THERM Corporation, P.O. Box 345, Wauconda IL, 60084 (847) 526-2407 Fax (847) 526-4456 (800) 526-7887
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PROGRAMMING
The thermostat will automatically start up in the menu for
setting time and day. Please refer to the User’s Manual for
further programming instructions.
GFCI TEST
GFCI test can only be performed while the thermostat is
calling for heat.
Adjust the set-point temperature until the heating symbol1.
() appears. Use the “UP” ( ) button, to increase the
heating demand and then press the “OK” button. Wait 10
seconds to allow the thermostat to adjust to the new set-
point temperature.
Press the “TEST” button. The test is successful if the red2.
light in the “TEST” button lights up and “GROUND
FAULT” is shown on the display.
Press the “STANDBY/RESET” button to reset the GFCI.3.
The red light should go out and the display returns to
normal appearance. Press the “DOWN” ( ) button to
return to the original temperature setting.
If the test fails, check the heating cable and thermostat.
The GFCI test should be performed monthly.
SENSOR FAULT LOCATION
If the thermistor is disconnected or short-circuited, the
heating system is switched off. The thermistor can be
checked according to the resistance table.
Sensor Resistance Table
Temp. (°C) Temp. (°F) Value (ohm)
-10 -14 64000
0 32 38000
10 50 23300
20 68 14800
30 86 9700
ERROR CODES
E0: Internal error. The thermostat must be replaced.
E2: External sensor short-circuited or disconnected.
UL LISTED FOR THE US AND CANADA
According to the following standards:
GFCI: UL 943 4th ed.
CSA C22.2 No.144.1-06
Thermostat: UL 873
CSA C22.2 No. 24
UL file number: E157297
UDG-4999 SPECIFICATIONS
Supply: 120-240 VAC 50/60 Hz
Load: 15 amps max. (resistive load)
Power: Maximum 1,800 W, 120 VAC
Maximum 3,120 W, 208 VAC
Maximum 3,600 W, 240 VAC
GFCI: Class A (5 mA trip level)
Temp. Range: 41 to 104°F (5 to 40°C)
Ambient Range: 32 to 104°F (0 to 40°C)
© 2010 OJ Electronics A/S - ® The OJ trademark is a registered trademark belonging to
OJ Electronics A/S
Warning: UDG-4999 Thermostat must be
installed by a qualified electrician. All assembly,
installation, and test instructions must be fol-
lowed. Improper installation can result in property
damage, serious injury, or death due to electric
shock. Please call Delta-Therm Corporation at 1-800-526-7887
with any installation or operating questions.
C_UDG-4999_1104_II