Greystone CSR-112 User manual

Installation Guide
CSR-112 / CSR-124 Command Relay
Oct 13, 2009 www.greystoneenergy.com 1-800-561-5611 [email protected] Page 1
Specifications
Coil Voltage . . . . . . . . . . . CSR-112 --- 12 Vdc 10%
CSR-124 --- 24 Vac/dc 10%
Coil Current . . . . . . . . . . . CSR-112 --- 25 mA maximum
CSR-124 --- 13 mA maximum
Relay Contacts . . . . . . . . . SPDT Form C (NO + NC)
Contact Rating . . . . . . . . . 5A @ 250Vac/30Vdc Resistive
2A @ 250Vac/30Vdc Inductive
Contact Resistance . . . . . . 30 mmaximum
Operating Temperature . . . -15 to 60 C (5 to 140 F)
Operating Humidity . . . . . .5 to 90 %RH, non-condensing
Terminal Block . . . . . . . . . 14 to 22 AWG
Dimensions . . . . . . . . . . . . 2 x 1.4 x 0.83 in
(50.8 x 35.6 x 21.1 mm)
Enclosure Material . . . . . . ABS/PC, UL94 V-0
Manufacturing . . . . . . . . . . ISO 9001 Certified
Agency Approvals . . . . . . .cULus Listed
Operation
The CSR command relay attaches to the side of any full-
size CS type sensor or switch and adds a form C relay
function. It provides line voltage switching with control
either from an automation system digital output or from a
CS-610-200 or CS-GnG-200 current switch. A status LED
indicates the relay state and the relay output features both a
normally-open and a normally-closed contact.
The CSR/CS combination provides a convenient solution
when status indication and motor control are needed at a
single location. The CSR can accept a digital control signal
from the controller to activate the relay contacts which can
be used to provide power to the motor contactor to start the
motor. The CS switch will then provide a digital proof-of-
flow signal to the controller to indicate motor status.
WARNING 
- Electric Shock Hazard, Use Caution
- Disconnect and lock out power before installation
- Follow national and local electrical codes
- Read and understand these instructions before installing
- Installation only by qualified electrical personnel
- Do not rely on this device to indicate line power
- Only install this device with CS current switch or sensor
- Do not use this device for life-safety applications
- Do not install in hazardous or classified locations
- Install this product in a suitable electrical enclosure
- Failure to follow these instructions will result in
death or serious injury.
Installation
- Read all warnings before beginning
- Ensure the selected device has the correct ratings
- Disconnect and lock out power
- Snap the CSR device onto the side of a CS product
- Mount the CS switch with two screws through the base or
snap onto a standard DIN mounting rail
- Place the monitored conductor through the sensor hole
- Wire the status output to the controller as shown in the
wiring diagrams (not polarity sensitive)
- Wire the coil input to the controller or status switch as
required
- Wire the relay contacts to the load as required
- Reconnect the power

Installation Guide
CSR-112 / CSR-124 Command Relay
Oct 13, 2009 www.greystoneenergy.com 1-800-561-5611 [email protected] Page 2
Wiring
The controller digital output (either 12 Vdc
for CSR-112 or 24 Vdc for CSR-124)
controls the CSR command relay coil input.
When the coil signal is received, the CSR
relay contacts close to supply 120 Vac power
to the motor contactor.
The motor contactor then switches the 600
Vac power to the fan and the fan starts.
The CS-610 current switch monitors the
current flow to the fan and when it’s trip level
is exceeded, it supplies a digital input signal
to the controller to indicate the fan status.
The CS-610 monitors the current to the
heater. When the heater current exceeds
the CS-610 trip point, the CS output
contacts close to complete the low
voltage circuit and 24 Vdc is applied to
the CSR-124 coil input.
The energized coil input closes the CSR
relay contacts and applies 120 Vac to
the fan.