Copyright HK Instruments 2021
www.hkinstruments.fi
Installation version 7.0 2021
SCHEMATICS
DIMENSIONAL DRAWINGS
INSTALLATION
STEP 1: MOUNTING THE DEVICE
1) Mount the device in the desired location (see step 1).
2) Route the cables and connect the wires (see step 2).
3) The device is now ready for configuration.
WARNING! Apply power only after the device is properly wired.
Figure 1a - Surface mounting
1) Select a mounting location on the wall at 1.2–1.8 m (4–6 ft) above
the floor and at least 50 cm (20 in) from the adjacent wall. Do
not block device air vents from any direction and leave atleast
20 cm (8 in) gap to other devices. Locate the unit in an area with
good ventilation and an average temperature, where it will be
responsive to changes to the room conditions. The RHT-MOD
should be mounted on a flat surface.
Do not locate the RHT-MOD where it can be affected by:
• Direct sunlight
• Drafts or dead areas behind doors
• Radiant heat from appliances
• Concealed pipes or chimneys
• Outside walls or unheated / uncooled areas
2) Use the device as a template and mark the screw holes.
3) Mount the wall plate with screws.
• Incorrect installation may cause a shift in temperature output
• Secure the lid with a locking screw, if the relay is connected to the
mains power
Display locking
jumper
Jumpers
Contact pins for
relay terminal
Contact pins for
terminal block
Terminal block
Terminal block for relay
99.0
90.0
83.0
49.5
14.0
45.0
18.0
Ø 4.0
32.0
YES
NO
NO
Figure 1b - Mounting orientation