suntouch PM-5C Instructions For Installation Manual

Instructions for Installing PM-5C

Read this Manual BEFORE using this equipment.

Failure to read and follow all safety and use
information can result in death,

serious personal injury, property damage, or damage
to the equipment.

Keep this Manual for future reference.

Snow & Ice Sensor Control

These instructions are intended to provide specific application
information for installing the PM-5C snow and ice sensor control
with the ProMelt snow melt products.

Please refer to the full instruction manual given with the product
for further installation, Caution, and operation instruction.

The PM-5C is a multi-voltage, self contained temperature, snow
and ice sensor control. Each PM-5C can be set to operate
with either 120, 208, 240, or 277 VAC and can provide up to
60 amps of service to the load (2 circuits 30 amps each). The
integrated snow sensor is heated to allow for snow, ice, or
freezing rain to melt, allowing proper detection of environmental
conditions.

!

WARNING

1. THIS UNIT SHOULD BE INSTALLED ONLY BY
QUALIFIED PERSONNEL!

2. To prevent the risk of electric shock, disconnect all
power from the control and associated equipment
before opening the front cover plate.

3. Do not drill holes through the electrical enclosure for
mounting.
Mount the control to a free-standing conduit or via
the pre-determined mounting holes.

4. Ensure front cover gasket is properly installed when

replacing cover.

Installation

The PM-5C must be installed in a location that exposes the
moisture grid to a clear view of the sky and any precipitation.
The unit should not be mounted directly under eaves,
overhangs, or other obstructions that can block precipitation
from reaching the moisture grid.

Do not install the sensor close to the ground, or any other
location, that can cause the sensor to be buried in snow.

Mount the PM-5C outdoors, away from furnace vents, dryer
vents, and other sources of heat. The PM-5C can be mounted
to a free-standing conduit or by using the mounting holes in
each corner of the enclosure. Do not drill holes in the enclosure.

Wire the controller in accordance to the provided schematics

Setting Configuration

Before turning power on to the PM-5C sensor, it is important to
set all control modes and settings.

1. Place the control in Standby/Reset with the switch mounted
on the side before making configuration switch changes.
Remember to return it to Automatic mode when finished.

2. Set the Trigger Temperature by adjusting
the TRIG TEMP control for desired melting
conditions. Precipitation below this
temperature is assumed to be snow, above
this is rain.Control comes with the TRIG
TEMP dial set to 39°F (4°C).

TRIG TEMP

ENCLOSURE TYPE 3R

RAIN/SNOW SENSOR CONTROLLER

CONFORMS TO UL STD 508
CERTIFIED TO CAN/CSA STD C22.2 NO. 14

INPUT
100-277V AC 0.15 A 50/60 Hz
CONTROL
2 x 30 A 277V AC, 20 A 28V DC

WARNING: THIS UNIT MAY BE SUPPLIED BY MORE THAN ONE BREAKER

AVERTISSEMENT: IL PEUT Y AVOIR UN CIRCUIT SECONDAIRE SOUS TENSION

PM-5C provides integrated air and moisture detection within a
rainproof and ice-resistant enclosure.

3. Set the DELAY OFF time for 30 to 90
minutes (LD Off) or 2 to 6 hours (LD On).
The Delay function will allow the snow
melt system to run for the set time frame
after moisture is no longer detected
(once snowfall has stopped). This is to
help prevent "black ice" from forming.

4. Determine how the sensor operates by setting the toggles
located at S1.

Snow: The control will operate when

precipitation is detected below the
Temp Adjust setting.

Recommended ON.

Rain: The control will operate when precipitation is detected

above the Temp Adjust setting. Required OFF.

DEL: The control will operate with a Delay Off time. If this

function is set to Off, the control will operate with a
2 minute delay to prevent short-cycling of external
components.

Recommended ON.

LTC: The control will operate in Low Temperature

Cutoff mode, preventing operation when Ambient
Temperatures (AT) fall below 15°F (9.5°C).

Recommended: ON (for systems with limited
heat output).

LD: This Long Delay switch determines the time span of

the Delay Off drying cycle. Either 30-90 minutes (LD
Off) or 2-6 hours (LD On). Recommended OFF.

5. Set the precipitation SENSITIVITY to reduce nuisance

triggering. MORE to trigger immediately upon detection.
LESS to trigger with up to 120 seconds of detection.

Recommended MORE to begin, then adjust as needed.

Power must be cycled for switch changes to take effect.

INDICATOR

AUTOMATED
SYSTEMS
ENGINEERING

DS-5C

DANGER

OFF

POWER

ACTIVATED

CONTROL SWITCH

MANUAL ON
AUTOMATIC
STANDBY/RESET

Wiring Access

Air Temperature Sensor

Moisture Grid

CM

L

US

I

C

D

S

E

T

Intertek

3175102

IS-ST-PM5C

Control Switch

DELAY OFF

INPUT POWER

CONTROL/MONITOR JACK

AUTOMATED

120 / 208 /

240 / 277 VAC

Ground

L1

L2 / N

PM-5C

Snow Control

Waterproof

Junction

Box

Gr

Yellow

Blu

Brn

Red

Gr

Wh

ProMelt

Mat/

Cable

ProMelt

Mat/

Cable

Wh

Gr
Wh
Wh

Ground

L1

L2 / N

SYSTEMS
ENGINEERING

CDP-2

Snow Sensor

Control/Display Panel

Deice On

Manual On

Automatic

Standby

Indoor monitoring

and control of the PM 5

is available with

the optional PM DP

snow melt sensor

remote control.

For more information see

the PM DP submittal or
installation instructions.

PM-5C ControlProMelt Display Panel

CONFIGURATION SWITCH

TEMPERATURE ADJUST

DELAY OFF ADJUST

SENSITIVITY ADJUST

LOAD1 LOAD2

Recommended Switch Settings

Function Trigger LTC DEL RAIN SNOW LD OFF LD ON

Snow sensor
w/o LTC

Snow sensor
w/LTC

Snow controller w/o LTC TT>AT OFF ON OFF ON 30-90 Min 2-6 Hr

Snow controller w/LTC TT>AT>15°F (9.5°C) ON ON OFF ON 30-90 Min 2-6 Hr

TT>AT OFF OFF OFF ON 2 Min 2 Min

TT>AT>15°F (9.5°C) ON OFF OFF ON 2 Min 2 Min

Do Not set the Rain switch to "ON". Possible overheating of the snow melt
cables may result.

Specifications

Supply Voltage 100 - 277 VAC

Maximum Amperage 2 x 30A

Trigger Temperature Range (TT)

Configuration Modes

Delay Settings (post melting)

Low Temperature Cutoff (LTC)

GRID JACK

SWITCH JACK

340F to 440F (10C to 6.50C)

Snow Only

Rain Only

Snow or Rain

30 to 90 minutes

2 to 6 hours

Prevents system operation when Ambient

Temperature (AT) is below 5°F (-150C)

Sensor Maintenance

At least once every four months the PM 5 should be powered
down and the sensor grid be wiped clean with clear water. Heavy
deposits left behind by evaporated water may be removed by
gently scrubbing with a non-metallic scouring pad.

WARNING: This product contains chemicals known to the State of
California to cause cancer and birth defects or other reproductive
harm. For more information: www.watts.com/prop65

Limited Warranty: SunTouch (the “Company”) warrants each product to be free from defects in material and workmanship under normal usage for a period of one year from the date of original
shipment. In the event of such defects within the warranty period, the Company will, at its option, replace or recondition the product without charge.
THE WARRANTY SET FORTH HEREIN IS GIVEN EXPRESSLY AND IS THE ONLY WARRANTY GIVEN BY THE COMPANY WITH RESPECT TO THE PRODUCT. THE COMPANY MAKES NO OTHER WARRANTIES,
EXPRESS OR IMPLIED. THE COMPANY HEREBY SPECIFICALLY DISCLAIMS ALL OTHER WARRANTIES, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE IMPLIED WARRANTIES OF
MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
The remedy described in the first paragraph of this warranty shall constitute the sole and exclusive remedy for breach of warranty, and the Company shall not be responsible for any incidental, special
or consequential damages, including without limitation, lost profits or the cost of repairing or replacing other property which is damaged if this product does not work properly, other costs resulting from
labor charges, delays, vandalism, negligence, fouling caused by foreign material, damage from adverse water conditions, chemical, or any other circumstances over which the Company has no control.
This warranty shall be invalidated by any abuse, misuse, misapplication, improper installation or improper maintenance or alteration of the product.
Some States do not allow limitations on how long an implied warranty lasts, and some States do not allow the exclusion or limitation of incidental or consequential damages. Therefore the
above limitations may not apply to you. This Limited Warranty gives you specific legal rights, and you may have other rights that vary from State to State. You should consult applicable state
laws to determine your rights. SO FAR AS IS CONSISTENT WITH APPLICABLE STATE LAW, ANY IMPLIED WARRANTIES THAT MAY NOT BE DISCLAIMED, INCLUDING THE IMPLIED WARRANTIES OF
MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, ARE LIMITED IN DURATION TO ONE YEAR FROM THE DATE OF ORIGINAL SHIPMENT.

IS-ST-PM5C 1730 © 2017 SunTouch

Operation Modes Automatic Standby/Reset Manual

Manual Override Switch

An override switch is mounted on the side for testing and special
operational requirements. Placing the switch in the "Automatic"
position will allow the sensor to operate normally. "Manual On" will
activate the control and will stay activated for a maximum of 40
hours before returning to "Automatic" mode. The "Stand-by/Reset"
position will clear any current snow melt call or delay activity.

If the Manual Override Switch is moved to Manual On for less than
2 seconds and then back to Automatic the sensor will execute one
delay off cycle. This can be used to clear frost, hail, drifting snow, or
other conditions. Stand-by/Reset will clear this setting.

USA: T: [phone] • F: [phone] • SunTouch.com

Canada: T: [phone] • F: [phone]

Latin America: T: (52) 81-1001-8600