Champion CRH Series, CRH 20, CRH 25, CRH 75, CRH 100 Instruction Manual
...
3227486 Rev. H 10/18
CA18-2-635 4th Edition
INSTRUCTION MANUAL
Contents
GENERAL SAFETY INFORMATION ...................................1
1.0 INSTALLATION ..........................................................2
2.0 OPERATION ..............................................................3
3.0 MAINTENANCE ........................................................4
TROUBLESHOOTING GUIDE .............................................6
SPECIFICATIONS ......................................................... 7-8
ELECTRICAL SCHEMATICS ...............................................9
DIMENSIONS AND WEIGHTS ................................... 10-12
PARTS LIST .............................................................. 13-14
WARRANTY ..................................................................16
GENERAL SAFETY INFORMATION
1. Pressurized devices
This equipment is a pressure containing device.
• Do not exceed maximum operating pressure as shown
on equipment serial number tag.
• Make certain equipment is depressurized before servicing.
2. Electrical
This equipment requires electricity to operate.
• Install equipment in compliance with national and local
electrical codes.
• Standard equipment is supplied with NEMA 1 electrical enclosures and is not intended for installation in
hazardous environments.
• Disconnect power supply to equipment before
servicing.
3. Breathing air
• Air treated by this equipment may not be suitable for
breathing without further purification. Refer to OSHA
standard 1910.134 for the requirements for breathing
quality air.
CRH SERIES
HIGH INLET
TEMPERATURE
REFRIGERATED
COMPRESSED
AIR DRYERS
Ambient Air Filter
1.0 INSTALLATION
24"
12"
wall
6"
36"
1.1 Location
A. Air compressor intake - Locate air compressor so that
contaminants potentially harmful to the dryer are not
drawn into the air system.
B. Free air flow - Do not block either side of the cabinet.
Observe minimum installation clearances as shown.
1.2 Mounting
Dryer is suitable for floor or shelf mounting.
2. Location in the compressed air system
A. Maximum working pressure - 250 psig,
17.6 kgf/cm2. Do not exceed unit’s Maximum Working
Pressure.
1) For maximum capacity, install unit in air system at
highest pressure possible (e.g. before pressure reducing valves)
2) For maximum capacity, install unit at coolest compressed air temperature possible. Maximum inlet
compressed air temperature: 180°F, 82°C. If inlet air
exceeds this temperature, precool the air by extending the piping between the compressor and the
dryer.
B. Air Outlet - Connect air outlet to downstream air lines.
C. By-pass piping - If servicing the unit without interrupting
the air supply is desired, piping should include inlet and
outlet isolation valves and an air by-pass valve.
D. Condensate drain - It is advisable to connect drain outlet
to the condensate drainage system.
NOTE: Drain discharge is at system pressure. Drain line
should be anchored to prevent whipping.
1.3 Piping connections
A. Air Inlet - Connect compressed
air line from air compressor to air
inlet using strainer supplied.
1. Install strainer (included in
shipping carton) prior to
dryer inlet using pipe nipple
supplied or other piping as
required.
NOTE: Observe flow direction arrows on strainer.
NOTE: Install strainer where it is easily accessible for cleaning.
NOTE: Use vibration dampener, if vibration exists in air line at
inlet to dryer.
Control
Panel
IO
Separator and
Integral Filter
Drain
Mechanism
Drain
Connection
Electrical
Connection
1.4 Electrical connections
A. Dryer is designed to operate on power supply (voltage)
listed on serial number tag located on the back of the
dryer.
B. Dryer is supplied with an electrical cord. Install in recep-
tacle of proper voltage.
NOTE: Models 50 and 75 (115v only) - Install plug
in receptacle rated for 20 amps. Units are supplied
with 20 amp plug.
Plug
NOTE: Refrigeration system is designed to run continuously
and should NOT be wired to cycle on/off with the air compressor.
Serial Number
Tag
Air Inlet
Connection
Strainer
(shipped
separately)
Pipe Nipple
Air Outlet
Connection
Serial
Number
Tag
2
Left Side Front BackRight Side
2.0 OPERATION
I
O
On/Off Switch
Fault Light
NOTE: Installations above 6000 feet, 1825 meters
Unit is adjusted to operate in altitudes up to 6000 feet, 1825
meters. If unit is installed in an altitude above this, and has
not been preset at the factory for this altitude, contact
Manufacturer’s Service Department.
2.1 Start-up
Start refrigeration system by pushing the on/off switch to
the ON position (depress rocker switch on side marked “I”).
NOTE: The fault light may illuminate when unit is energized.
Light should go out approximately 5 minutes after start-up.
If light remains lit after 30 minutes or illuminates after going
out, refer to Troubleshooting Guide.
Control Panel
2.2 Operating check points
Check the following on a periodic basis:
A. Rocker switch is in the ON position.
B. Amber fault light is out.
C. Condensate is being regularly discharged.
2.3 Minimum/maximum operating conditions
A. Minimum/Maximum air pressure: 20/250 psig,
1.4/17.6 kgf/cm
B. Maximum inlet air temperature: 180°F, 82°C
C. Minimum/Maximum ambient temperature:
40/110°F, 4/43°C
2
D. Maximum flow capacity
1. For dryers without an aftercooler installed upstream
Flow capacity in scfm (m3/min) @ 180°F, 82°C inlet
temperature, 160°F, 71°C inlet pressure dew point,
95°F, 35°C ambient temperature, and less than
5 psi, 0.35 kgf / cm2 pressure drop.
60 HZ
Inlet Pressure
psig (kgf/cm2)
Model
175 (12.3) 150 (10.6) 125 (8.8) 100 (7.0)
20 23 (0.65) 22 (0.62) 20 (0.57) 18 (0.51)
25 29 (0.82) 27 (0.76) 25 (0.71) 23 (0.65)
35 41 (1.16) 38 (1.08) 35 (0.99) 32 (0.91)
50 58 (1.64) 54 (1.53) 50 (1.42) 45 (1.27)
75 87 (2.46) 81 (2.29) 75 (2.12) 68 (1.93)
100 116 (3.29) 108 (3.06) 100 (2.83) 91 (2.58)
125 145 (4.12) 135 (3.82) 125 (3.54) 114 (3.23)
50 HZ
Inlet Pressure
psig (kgf/cm2)
Model
2. For dryers with an aftercooler installed upstream
Flow capacity in scfm (m3/min) @ 100°F, 38°C inlet
temperature, 100°F, 38°C inlet pressure dew point,
100°F, 38°C ambient temperature, and less than
10 psi, 0.7 kgf / cm2 pressure drop.
175 (12.3) 150 (10.6) 125 (8.8) 100 (7.0)
20 20 (0.57) 18 (0.51) 17 (0.48) 15 (0.42)
25 24 (0.68) 23 (0.65) 21 (0.59) 19 (0.54)
35 31 (0.88) 29 (0.82) 27 (0.76) 24 (0.68)
50 58 (1.64) 54 (1.53) 50 (1.42) 45 (1.27)
75 71 (2.01) 66 (1.87) 61 (1.73) 55 (1.56)
60 HZ
Inlet Pressure
psig (kgf/cm2)
Model
175 (12.3) 150 (10.6) 125 (8.8) 100 (7.0)
20 32 (0.91) 30 (0.85) 28 (0.79) 25 (0.71)
25 40 (1.13) 37 (1.05) 34 (0.96) 31 (0.88)
35 55 (1.56) 51 (1.44) 47 (1.33) 43 (1.22)
50 78 (2.21) 73 (2.07) 67 (1.90) 61 (1.73)
75 118 (3.34) 110 (3.12) 102 (2.89) 92 (2.61)
100 157 (4.45) 146 (4.14) 136 (3.85) 123 (3.48)
125 197 (5.58) 183 (5.18) 170 (4.82) 155 (4.39)
50 HZ
Inlet Pressure
psig (kgf/cm2)
Model
175 (12.3) 150 (10.6) 125 (8.8) 100 (7.0)
20 27 (0.76) 25 (0.71) 23 (0.65) 21 (0.59)
25 33 (0.93) 31 (0.88) 29 (0.82) 26 (0.74)
35 43 (1.22) 40 (1.13) 37 (1.05) 33 (0.93)
50 78 (2.21) 73 (2.07) 67 (1.90) 61 (1.73)
75 96 (2.72) 90 (2.55) 83 (2.35) 75 (2.12)
3
3.0 MAINTENANCE
Screen
DRYER IS A PRESSURE CONTAINING DEVICE.
DISCONNECT POWER AND DEPRESSURIZE DRYER BEFORE
SERVICING.
3.1 Ambient air filter - Clean accumulated dust and
dirt from ambient air filter monthly or more often
if air flow across the condenser is impeded.
A. Remove top panel.
B. Remove ambient air filter by sliding upwards.
3.3 Replace separator/filter element yearly or more
often if pressure drop across the dryer is excessive.
A. Shut-off compressed air supply to the dryer and depres-
surize. Turn off power to the dryer.
B. Remove top panel.
C. Remove two screws holding side panel and remove side
panel by sliding upwards.
D. Disconnect drain tube from bulkhead fitting in cabinet
base. To remove, press the plastic collar in, toward the
fitting, while pulling the tube out of the fitting.
E. Remove bowl - push bowl up, turn bowl 1/8th turn to
your left, and pull straight down.
F. Clean filter bowl.
G. Replace element.
C. Wash with soap and water and allow to dry before re-
installing.
NOTE: Do not use solvents to clean ambient air filter.
D. Reinstall filter and top panel.
3.2 Inlet strainer - clean inlet strainer monthly or
more often if rapid clogging occurs.
A. Shut-off compressed air supply to the strainer and de-
pressurize. Turn off power to the dryer.
B. Remove screen and clean or replace.
C. Reinstall.
1. Replacing complete element
a) Pull off old element and discard.
b) Make certain O-ring inside top of replacement ele-
ment is in place and push element onto filter head.
2. Replacing sleeve only
a) Pull element straight down to remove.
b) Remove bolt and bottom cap and remove disposable
filter sleeve.
c) Clean separator core with soap and water if necessary
d) Slide new filter sleeve over separator core and re-
place bottom cap and hand tighten bolt.
e) Make certain O-ring inside top of element is in place
and push element onto filter head.
4
H. After making sure that O-ring and wave spring inside top
Element o-ring
Separator Element
Bowl o-ring
Drain Mechanism
Wave Spring
Tube
Hose
Barb
of bowl are in place, reassemble bowl to head.
NOTE: Make certain O-ring is generously lubricated
NOTE: Wave spring ends should be pointed down to prevent
the wave spring from interfering with reassembly.
I. Reconnect drain tube to bulkhead fitting by pushing
tube into fitting until it locks in position.
J. Reinstall side and top panels.
K. Restore power and repressurize dryer. Resume
operation.
3.4 Automatic condensate drain
• Check daily to be sure automatic drain is discharging.
• Replace drain mechanism yearly.
A. Shut-off compressed air supply to the dryer and depres-
surize. Turn off power to the dryer.
B. Remove top panel.
C. Remove two screws holding side panel then remove side
panel by sliding upwards.
D. Disconnect drain tube from bulkhead fitting in cabinet
base. To remove, press the plastic collar in, toward the
fitting, while pulling the tube out of the fitting.
E. Remove bowl - push bowl up, turn 1/8th turn to your
left, and pull bowl straight down.
F. Remove drain tube fitting from bottom of bowl.
G. Remove old drain mechanism by turning knurled fitting
to the right (clockwise) and remove.
H. Install new drain mechanism. If necessary, use a wire
or pencil to guide the new mechanism into place.
I. Reassemble drain tube fitting to bowl.
J. After making sure that large O-ring in filter head is in
place, reassemble bowl to head.
K. Reconnect drain tube to bulkhead fitting by pushing
tube into fitting until it locks in position.
L. Reinstall top and side panels.
M. Restore power and repressurize dryer. Resume
operation.
5
Loading...