Installation Guide
Electronic Room Thermostats
CTE–5101, 5102, 5103, 5104, 5105
Mounting
CTE–5100 series thermostats may be mounted horizontally or vertically to a standard 2" x 4" (51 x 102)
handy box using a HMO-5024/26 or 5030/5031 backplate, or directly to a hollow wall using drywall bracket
HMO-5023. Mount thermostats on walls unaffected by sunlight or drafts to ensure accurate average
temperature sensing. All CTE–5100 series thermostats
require a scale plate and a cover
which must be
ordered separately.
Required Tools
• digital voltmeter
• small phillips & flat-blade screwdrivers
• pliers
• 1/16" hex wrench
• key hole saw
Electrical Box Mounting
1. Install, but
DO NOT TIGHTEN
, the HMO-5024/26 or 5030/5031
backplate to a handy box using the two 6-32 screws (included).
2. Adjust and level the backplate using the slotted mounting hole.
3. Tighten the two mounting screws.
4. Pull all thermostat wires and cable through the backplate and
decorative trim plate opening (included with HMO-5024/5026 or
5030/5031). Be careful not to damage the trim plate while wiring.
5. Connect the thermostat’s wires according to it’s particular
application. Refer to project drawing or the wiring chart.
6. Position the trim plate between the backplate and the thermostat
(cover removed).
7. Align the mounting holes and secure the assembly with the two
6-32 x 2" self-tapping screws (included).
Hollow Wall Mounting
Thermostats may be mounted on a hollow wall up to 5/8" thick using the HMO–5023 Drywall Mounting Kit.
1. Using the template, cut a 1–1/2" x 2–11/16" opening in the drywall.
2. Loosely mount the HMO–5023 bracket to the thermostat (cover removed) using the two 6-32 x 2" screws.
3. Pull all thermostat wires or cable through the bracket’s ’wiring/cable access hole.
4. Connect the thermostat wires according to it’s particular application. Refer to the project drawing or the
wiring chart.
5. Insert bracket diagonally, through the wall opening, center and tighten screws.
HMO-5024/26 or 5030/5031
Back Plate
HMO–5023 Drywall Mounting Kit