Honeywell T4800A/CT1750A User Manual

T4800A/CT1750A
Precision Electronic
Electric Heating Thermostat
The T4800/CT1750 Electric Heating Thermostat provides precise, accurate line voltage control of resistance-rated heating equipment. A patented “CoolSwitch
activates the heating circuit on temperature fall.
APPLICATION
• CSA Performance Certified. UL Listed. Conforms to NEMA standard DC3 for thermostat performance.
• Rugged molded thermoplastic mounting base with captive mounting screws.
• Energy-efficient and economical.
• Patented electronic switch – no leveling
required.
• High sensitivity solid state temperature sensing element.
• 2-wire non-polarized leadwire connections.
• Adjustment Range 5° to 25°C (40 - 80°F).
• Contemporary white styling.
• One-piece decorative cover.
• LED status indication.
• Suitable for non-inductive rated fan forced heaters.
Contents
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Setting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Checkout. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
MO’D • 2/00 • © Honeywell Limited 95C-10690B - 2
FEATURES
PRODUCT DATA
95C-10690B-2 4/28/00 9:53 PM Page 1
WARNING
This thermostat is a line voltage (240 Volt) control. Do not install this thermostat if you are not completely familiar and competent with house wiring. If improperly handled, there can be a risk of 240 volt electric shock hazard which may cause serious injury or death.
Maximum load for thermostat must not exceed 3800W, other­wise a potential fire hazard exists.
INSTALLATION
!
Location:
Install a vertical switch box for mounting the T4800/ CT1750 approximately 1.5m ( 5 feet) above the floor on an inside wall where the thermostat will be subjected to average room temperature. Do not place above heater.
The thermostat should be placed away from concealed warm or cold water pipes, warm air ducts, or drafts from hallways, fireplaces or stairways.
MODEL: T4800A/CT1750 — makes heating circuit on temperature
fall.
SPST (see Fig. 2) Range 5 to 25°C (40°F – 80°F). Type of Switching:
Patented "CoolSwitch
" triac/relay combination.
Wiring Connections:
Six inch stranded copper leadwires suitable for connecting to aluminum wiring if approved special
service CO/ALR connectors are used.
Electrical Rating:
Non-inductive (resistive) rating.
16 A maximum @ 240 Vac 60 Hz, 2.0A minimum. (i.e. 500 W to 3800 W).
Performance Certification
16 A @ 240 Vac.
Performance Specifications:
Precision: ± 0.5°C (1°F) differential @ 3800W.
Accuracy*: 0.5°C (1°F) droop @ 1500W.
2°C (4°F) droop @ 3800W Conforms to NEMA DC3 standard applied to low voltage thermostats.
Setpoint Adjustment:
Control knob on face of thermostat.
Sensing Element:
Electronic thermistor.
Dimensions:
See Fig. 1 – Nominal dimensions.
LED Indicator;
Lights as heat comes on.
Mounting Means:
Direct mounting on vertical 2 x 4 inch (50 mm x 100 mm) junction box, or 4 x 4 inch (100 mm x 100mm) box with mud ring.
Approvals:
CSA Certified LR1322. UL Listed.
* Accuracy of the [T4800] thermostat will vary depending on
baseboard size and length of time the thermostat remains on.
T4800A/CT1750A ELECTRIC HEATING THERMOSTAT SPECIFICATIONS • ORDERING INFORMATION
SPECIFICATIONS
ORDERING INFORMATION
When purchasing replacement and modernization products from your TRADELINE® wholesaler or your distributor, refer to the TRADELINE catalog or price sheets for complete ordering number, or specify:
1. Model
2. Electrical load(s)
3. Accessories. If you have additional questions, need further information, or would like to comment on our products or services, please write or phone:
1. Your local Honeywell Home and Building Control Sales Office (check white pages or phone directory).
2. Home and Building Control Customer Satisfaction
Honeywell Inc., 1885 Douglas Drive North. Minneapolis, MN 55422 (612) 951-1000
3. In Canada —1-800-405-9835. International Sales and Service Offices in all principal cities of the world. Manufacturing in Australia, Canada, Finland, France, Germany, Japan, Mexico, Netherlands, Spain, Taiwan, United Kingdom, U.S.A.
Fig. 1 – Nominal Dimensions in mm (inches)
120
[4-3/4]
37
[1-7/16]
34
[1-5/16]
80
[3-1/8]
83
[3-1/4]
19
[3/4]
°C
23
[7/8]
2
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