INSTALLATION INSTRUCTIONS
LOCATION
To ensure proper operation, the thermostat should be
mounted on an inside wall in a frequently occupied
area of the building. In addition, its position must be
at least 18" (46cm) from any outside wall, and approx-
imately 5' (1.5m) above the floor in a location with
freely circulating air of an average temperature.
BE SURE TO AVOID THE FOLLOWING LOCATIONS:
- behind doors or in corners where freely circulating
air is unavailable
- where direct sunlight or radiant heat from appli-
ances might affect control operation
- on an outside wall
- adjacent to, or in line with, conditioned air dis-
charge grilles, stairwells, or outside doors
- where its operation may be affected by steam or
water pipes or warm air stacks in an adjacent parti-
tion space, or by an unheated/uncooled area
behind the thermostat
- where its operation will be affected by the supply
air of an adjacent unit
- near sources of electrical interference such as arc-
ing relay contacts
SPECIFICATIONS
Rated Voltage 20-30 VAC, 24 nominal
Rated
0.08 Amps to 1.5 Amps continuous
Current
per output with surges to 4 Amps
Max.
Control
Heating: 38° to 88°F in 1° Steps
Range
5° to 30°C in 1° Steps
Thermostat
Measurement
28° to 124°F or 0° to 48°C
Range
Control
± .5°C at 20°C
Accuracy
± 1°F at 68°F
NOTE: This thermostat contains electronic circuitry
replacing the conventional mechanical anticipator.
THERMOSTAT INSTALLATION
1. Insert a flat blade screwdriver or a coin 1/8" into
the slot located in the bottom center of the thermo-
stat case and twist 1/4 turn. When you feel or hear
a "click," grasp the case from the bottom two cor-
ners and separate from the subbase as shown in
the diagram at the right. Some models require more
force than others when separating due to the number of
terminals on the subbase.
2. Swing the thermostat out from the bottom.
3. Lift the thermostat up and off the subbase.
4. Place the rectangular opening in the subbase over
the equipment control wires protruding from the
wall and, using the subbase as a template, mark
the location of the two mounting holes (exact verti-
cal mounting is necessary only for appearance).
5. Use the supplied anchors and screws for mounting
on drywall or plaster; drill two 3/16" (5mm) diame-
ter holes at the marked locations; use a hammer to
tap the nylon anchors in flush to the wall surface
and fasten subbase using the supplied screws. (Do
not overtighten!)
DSL-100
RH
W
6. Connect the wires from your system to the thermo-
stat terminals as shown in the wiring diagrams.
Carefully dress the wires so that any excess is
pushed back into the wall cavity or junction box.
Ensure that the wires are flush to the plastic subbase.
The access hole should be sealed or stuffed to pre-
vent drafts from the wall affecting the thermostat.
REPLACING THE THERMOSTAT
ON THE SUBBASE
1. Position the thermostat on the hinged tabs located at
the top of the subbase.
2. Gently swing the thermostat down and press on the
bottom center edge until it snaps in place.
Line
Voltage
W1
24 VAC
Transformer
OFF
ON
4 MINUTE
2 MINUTE
(MIN ON/OFF)
(MIN ON/OFF)
KEYBOARD UNLOCKED
KEYBOARD LOCKED
OUTPUT TERMINAL FUNCTIONS
RH
24 VAC supply from heating
equipment
W
Heat energized with a heating call
Model DSL-100
111-123
97041
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