Standalone HVAC Room Energy Sensor
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Specification
Master Sensor
Model
GH-MS1
Infrared sensor & Detection Pattern
110° Dual element
Power supply
24 ± 2 VAC/DC
Current drain
Standby: 20 mA, Operating: 10 mA
Relay output
Form C (NC-COM-NO), 24V or dry contact selectable
Max. switching current
NO: 5A, NC: 3A, resistive load
Max. switching voltage
AC: 250V, DC: 30 V
High / Low temperature setback
High - 26/28/30°C (79/82/85°F) , Low - 11/13/15°C (51/55/59°F) - via jumper setting
Detection Pattern
110°wide, 15m (50ft) long @25°C(77°F)
Warm-up period
25 ± 2 seconds
Restart cycle protection
2 minutes, can be disabled
Test indication
Buzzer (audible) and LED (visible) , can be disabled
Housing material
ABS
Protection class
IP 31
Operating temperature
-10°C ~ 60°C (14°F ~ 140°F)
Mounting height
1.8 – 3.6m
RFI immunity
Av. 20V/m (10 – 1,000 MHz)
Detectable speed
0.1 – 3.0 m/sec
Operating humidity
Max. 95% RH non-condensated
Dimension
112 x 66 x 45 mm (4.4 x 2.6 x 1.8 inch)
Power Pack
Model
PP-1
Power supply
90 ~ 277 VAC
Power output
24 VDC, 200 mA max.
HVAC Relay output
Normally Closed (fail-safe)
Max. switching current
10A, resistive load
Max. switching voltage
250V
Housing material
ABS, flame-proof
Operating temperature
-10°C ~ 60°C (14°F ~ 140°F)
Operating humidity
Max. 95% RH non-condensated
Dimension
110 x 52.5 x 30 mm (4.3 x 2.1 x 1.2 inch)
System Component in GH-800
GH-MS1 Master Sensor
GH-MS1 is the master sensor of Standalone HVAC Room Energy Sensor. It consists of a high
sensitivity passive infrared (PIR) motion sensor and sophisticated microprocessor with
intelligent logic control in an aesthetically pleasing housing. It should be mounted on the wall
(corner mount recommended) to detect the presence of human by sensing the movement of
body heat energy. In addition to the guest presence detection and verification, the GH-MS-1
also provides various operation settings and component connections of the system. To avoid
the room becoming too hot or too cold during unoccupied period, thus requires excessive time
and energy to cool down or warm up, the GH-MS1 also features a programmable secondary
thermostat (via jumper) with various high and low temperature limit settings. The HVAC will be
activated if room temperature exceeds the set range.
PP-1 Power Pack
This power pack not only provides 24 VDC power supply for GH-MS1, but also controls the
operation of HVAC unit. The GH-MS1 has a fail-safe design. In case that GH-MS1 Master
Sensor is malfunction, the HVAC unit can still be operated manually as without using the GH-
MS1 master sensor.
GH-MC Door Sensor
The GH-MC Door sensor is a pair of magnetic contact to verify open/closed status. It should be
wired to the corresponding terminals of GH-MS1 to report the open/closed status of the door.
Once the door is opened, the GH-MS1 will enter into “standby” mode to detect the guest
presence. If motion is detected, the GH-MS1 will verify the room as “occupied” status and allow
guest to operate the thermostat and set the temperature of HVAC unit by themselves. If no
motion is detected within a period of time, then GH-MS1 will verify the room “vacant” and then
shut off the HVAC operation. Note: The GH-MS1 will automatically shut off the HVAC operation
if any sensor connected door or window is left open for more than 5 minutes.
ALTON CONTROLS SDN. BHD.
www.alton.com.my
