Chromalox CHPES-6A User Manual
3 Phase Voltages*
Output
Quantity/Rating
Elec at
of Contactors
No./kW
Rating Cap. Vol. 212˚F Heating
Model (BHP) (kW) (Gals.) (Lbs./Hr.)
208 240 480†
Elements
Type CHPES — 20-250 PSIG
CHPES-6A 0.6 6 6 18 30 30 30 1-6
CHPES-9A 0.9 9 6 27 30 30 30 1-9
CHPES-12A 1.22 12 6 36.2 40 30 30 1-12
CHPES-18A 1.73 17 6 51.2 50 50 30 1-17
CHPES-24A 2.45 24 14.3 72.3 2-40 2-30 2-30 2-12
1-40 1-40 1-12
CHPES-30A 2.95 29 14.3 87.4
1-50 1-30
40
1-17
CHPES-36A 3.47 34 14.3 102.5 2-50 2-50 50 2-17
1-40 1-30 1-40 1-12
CHPES-48A 4.69 46 14.3 138.7
2-50 2-50 1-30 2-17
2-50 2-30 2-12
CHPES-60A 5.91 58 14.3 174.8
2-40 2-50
2-40
2-17
CHPES-72A 6.93 68 14.3 205 4-50 4-50 2-50 4-17
CHPES-100A 10.40 102 27.8 307 6-50 6-50 3-50 6-17
CHPES-135A 13.9 136 30.5 410 — 8-50 4-50 8-17
1-30
CHPES-160A 16.1 157.5 30.5 475 — 7-60
3-60
7-22.5
CHPES-180A 18.4 180 30.5 543 — 8-60 4-60 8-22.5
Chromalox
®
DIVISION 4 SECTION
CHPES
SALES
REFERENCE
DATE
SERVICE REFERENCE
Installation, Operation
and
RENEWAL PARTS IDENTIFICATION
PQ436-1
MAY, 1999
(Supersedes PQ436)
161-562802-002
© 2010 Chromalox, Inc.
Type CHPES-6A through CHPES-180A
High Pressure Electric Steam Boiler
Standard Trim is 250 PSI — 0-225 PSI Operating Pressure Range
Boiler Serial Number . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Power Circuit Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Model. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Control Circuit Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
National Board No. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Amps . . . . . . . . . . . . . . . Phase . . . . . . . . . . . Cy . . . . . . . . . .
Important — This data file contains the National Board Registration Certificate for your boiler. It must be kept near the boiler at all times.
* Single phase available up to and including 24 kW capacity.
† All boilers must have separate 120V Control Circuit or Transformer.
Boilers under 40 Amps max are not fused.
MODEL CHPES-6A through CHPES-180A
DIMENSIONS
Pump Solenoid
Connection
Conduit Box
Control Panel
Standard When
Three (3) or
More Contactors
are Used
7/16" Bolt Hole Typical
Steam Outlet
Sight Glass
Element
Element
Access Door
Operating
Pressure
Controls
Control
Circuit Fuse
Control Circuit
On/Off Switch
with Pilot Light
5/8"
7/16" Bolt Hole Typical
1-1/4"
Drain
Blowdown
Valve
McDonnell & Miller
Low Water Cutoff
Pump Control
Manual Reset
High Limit Control
Safety Valve Outlet
Drain
Blowdown
Valve
Check
Valve
2
Typical Plumbing Installation of a Steam Boiler with Condensate Return System
Type CHPES — Dimensions (In.)
DIMENSIONS
INSTALLATION
Model A B* C D E F G H I J K L
CHPES-6A 37 22-1/2 30 15-1/4 20 30-1/2 9-1/2 16 1/2 1 1/2 1/2
CHPES-9A 37 22-1/2 30 15-1/4 20 30-1/2 9-1/2 16 1/2 1 1/2 1/2
CHPES-12A 37 22-1/2 30 15-1/4 20 30-1/2 9-1/2 16 1/2 1 1/2 1/2
CHPES-18A 37 22-1/2 30 15-1/4 20 30-1/2 9-1/2 16 1/2 1 1/2 1/2
CHPES-24A 43-1/2 26 46 17-1/2 23 34-1/2 16-1/2 24-1/2 1 1 1 3/4
CHPES-30A 43-1/2 26 46 17-1/2 23 34-1/2 16-1/2 24-1/2 1 1 1 3/4
CHPES-36A 43-1/2 26 46 17-1/2 23 34-1/2 16-1/2 24-1/2 1 1 1 3/4
Type CHPES — Dimensions (In.)
Model A B* C D E F G H I J K L
CHPES-48A 43-1/2 26 46 17-1/2 23 34-1/2 16-1/2 24-1/2 1 1 1 3/4
CHPES-60A 43-1/2 26 46 17-1/2 23 34-1/2 16-1/2 24-1/2 1 1 1 3/4
CHPES-72A 43-1/2 26 46 17-1/2 23 34-1/2 16-1/2 24-1/2 1 1 1 3/4
CHPES-100A 63-1/2 30 55 21 27 36 16-3/4 37-1/2 1-1/2 1-1/4 1 3/4
CHPES-135A 63-1/2 32 55 20-1/2 26 37-1/2 16 37-1/2 2 1-1/4 1 3/4
CHPES-160A 63-1/2 32 55 20-1/2 26 37-1/2 16 37-1/2 2 1-1/4 1 3/4
CHPES-180A 63-1/2 32 55 20-1/2 26 37-1/2 16 37-1/2 2 1-1/4 1 3/4
WARNING: To avoid electrical shock hazard, boilers
must be suitably grounded to earth.
1. The boiler should be mounted on a solid level foundation. Note:
When installing boiler, allow sufficient room (21” minimum) to
facilitate removal of elements if and when necessary.
2. WARNING: A minimum distance of 18” between boil-
er and any combustible material must be maintained.
3. Complete all piping to boiler. Connect water line to tagged fitting
on the motor and pump assembly, if used, or to tagged fitting on
water control feeder.
4. When any type of feed other than a pump feed is used — the existing water supply must be 10 pounds greater than the boiler operating pressure to assure water supply maintains proper water level in
boiler. Otherwise, lack of water can cause heater failure. Keep feed
water line valves open at all times except during blowdown.
5. All water feed systems are connected to water inlet check valve.
6. Connect steam line (with Globe valve) to boiler steam outlet.
Valve should be placed as close as possible to boiler outlet and
sized per label on boiler.
7. To insure maximum efficiency of supplied kW, all piping from
outlet should be insulated.
8. Drain and relief valve piping should be in accordance with state
and local codes. Floor drain to be provided directly below unit.
9. All electrical wiring should be done by licensed electrician in
accordance with national and local electrical codes.
10. If pump is located less than 30 feet from boiler, a second
check valve is required.
Vacuum
Breaker
Safety
Valve
Drain
Boiler
Check
Valve
Check
Valve
Check
Valve
Globe
Valve
Gate
Valve
Heat
Exchanger
Water/Steam
Separator
Insulated Steam Lines
(Pitch Down 5˚)
Pitch Down 5˚
Vent
Condensate
Return
Drain
Gate
Valve
Strainer
Return
Cold Water
Make-Up
Centrifugal
Turbine Pump
Steam
Water
Condensate
Vapor
(Typical
Load)
Trap
Trap
3
*Add two inches for transformer.
Diagram 1
3 Phase Voltage 3 Phase Voltage 3 Phase Voltage
Boiler 208 240 480 Boiler 208 240 480 Boiler 208 240 480
WIRING
TYPICAL WIRING DIAGRAMS
WARNING: Hazard of Shock. Disconnect all power
before working on boiler. Boilers must be effectively
grounded in accordance with the National Electrical
Code to eliminate shock hazard.
WARNING: Use 90˚copper conductors only.
1. Select proper wire gauge and type for supply conductors in accor-
dance with the National Electrical Code and local wiring codes following wiring diagram supplied (See recommendations for disconnect switches and fusing).
2. The unit is completely wired and pre-tested before shipment. No
internal wiring is required. Check all electrical connections for
tightness and retighten if necessary before energizing.
If a separate control circuit is used, the control circuit should be
connected to the control terminal block, inside access door (not
required with transformer).
3. Safety Switches — WARNING: Purchaser should use a
safety switch employing circuit breakers or fuses
between his main power source and the boiler.
4. Because of their water lines, boilers are susceptible to lightning
damage. Industrial type lightning protectors should be installed per
manufacturer’s recommendations at your service entrance. Check
your contractor or electrical dealer for recommended type for your
system.
5. Be sure all electrical connections are sufficiently tightened.
6. WARNING: Substitution of components or modifica-
tion of wiring system voids the warranty and may
lead to dangerous operating conditions.
7. SPECIAL INSTRUCTIONS FOR CUSTOMERS SUPPLYING THEIR OWN CONDENSATE OR PUMP SYSTEMS.
A. Check the voltage of the motor before making the wiring con-
nection. Some Chromalox boilers are supplied with dual voltage systems. The motor should always match the voltage of the
control circuit.
B. The motor circuit should be wired into the pump control as
shown in wiring diagram (float type pump control). If boiler is
equipped with solid state pump control, refer to wiring diagram
and use terminals 5 and 2.
Use Applicable wiring diagrams based on model number and power voltage.
CHPES-6A 1 1 1 CHPES-30A 2 2 3 CHPES-100A 8 8 9
CHPES-9A 1 1 1 CHPES-36A 2 2 3 CHPES-135A 10 11
CHPES-12A 1 1 1 CHPES-48A 4 4 5 CHPES-160A 12 12
CHPES-18A 1 1 1 CHPES-60A 6 6 7 CHPES-180A 10 10
CHPES-24A 2 2 3 CHPES-72A 6 6 7 Export 14
2PS
BR
Heater
Contactors
Feed Water
Boiler On
3
GND
B
FU9
B
1PB
Off
1
GND
1
GND
1 HTR
C1
FU1
FU2
FU3
FU8
FU7
H1
H2
X1
X3
L3
1L1
1L3
1L2
L2L1
X2
X4
Optional Transformer
1
1
C1
2
2
C4
C3
C2
R
1LT
Y
On
IFS
O
1PS
O
O
W
Feed Water
Electrical
Connection
21
1TB
123
3
GND
1
GND
2
GND
1
HTR
FU9
FU
1PB
Cabinet Exterior Left Side Cabinet Exterior Right Side
Panel Layout
CR
FU4
FU5
FU6
2L1
2L3
2L2
1
Mtr
Customer
Connect
Feed Water
Motor
10L
30L
20L
IT1
IT3
IT2
CR
Wire Color Code
B = Black
BR = Brown
R = Red
O = Orange
Y = Yellow
G = Green
BL = Blue
W = White
* Boilers under 40 Amps total (not fused)
4
Diagram 2
TYPICAL WIRING DIAGRAMS
2PS
BR
Heater
Contactors
Feed Water
Boiler On
3
GND
B
FU12
B
1PB
Off
2
GND
1
GND
1 HTR
C1
FU1
FU2
FU3
FU11
FU10
H1
H2
X1
X3
L3
1L1
1L3
1L2
L2L1
X2 X4
Optional Transformer
1
1
C1
2
2
C2
R
1LT
Y
On
IFS
O
1PS
O
O
W
Feed Water
Electrical
Connection
2
1
2TB
2 GND
1
HTR
FU12
1PB
Cabinet Exterior Left Side Cabinet Exterior Right Side
Panel Layout
2
HTR
C1
FU
1 2 3
C2
FU
4 5 6
1TB
1 GND
3
GND
H4
H3
2 HTR
C2
FU4
FU5
FU6
2L1
2L3
2L2
CR
FU7
FU8
FU9
3L1
3L3
3L2
1
Mtr
Customer
Connect
Feed Water
Motor
10L
30L
20L
IT1
IT3
IT2
CR
Wire Color Code
B = Black
BR = Brown
R = Red
O = Orange
Y = Yellow
G = Green
BL = Blue
W = White
Diagram 3
2PS
BR
Heater
Contactor
Feed Water
Boiler On
3
GND
B
FU9
B
1PB
Off
1
GND
1 HTR
C1
FU1
FU2
FU3
FU8FU7
H1
H2
X1
X3
L3
1L1
1L3
1L2
L2L1
X2 X4
Optional Transformer
1
1
C1
2
2
R
1LT
Y
On
IFS
O
1PS
O
O
W
Feed Water
Electrical
Connection
2
1
2TB
2 GND
1
HTR
FU9
1PB
Cabinet Exterior Left Side Cabinet Exterior Right Side
Panel Layout
2
HTR
C1
FU
1 2 3
1 GND
3 GND
H4
H3
2 HTR
2L1
2L3
2L2
2
GND
CR
FU4
FU5
FU6
3L1
3L3
3L2
1
Mtr
Customer
Connect
Feed Water
Motor
10L
30L
20L
IT1
IT3
IT2
CR
Wire Color Code
B = Black
BR = Brown
R = Red
O = Orange
Y = Yellow
G = Green
BL = Blue
W = White
* Boilers under 40 Amps total (not fused)
5
Diagram 4
TYPICAL WIRING DIAGRAMS
2PS
BR
Heater
Contactor
Feed Water
Boiler On
3
GND
B
FU15
B
1PB
Off
2
GND
1
GND
1 HTR
C1
FU1
FU2
FU3
FU14
FU13
H1
H2
X1
X3
L3
1L1
1L3
1L2
L2L1
X2
X4
Optional Transformer
1
1
C1
2
2
C2
R
1LT
Y
On
IFS
O
1PS
O
O
W
Feed Water
Electrical
Connection
2
1
2TB
2 GND
1 GND
2 GND
1
HTR
FU15
1PB
Cabinet Exterior Left Side Cabinet Exterior Right Side
Panel Layout
2
HTR
3
Htr
1TB
3
GND
H4
H3
2 HTR
C2
FU4
FU5
FU6
2L1
2L3
2L2
FU
1 2 3
FU
4 5 6
FU
7 8 9
C1
C3
C2
FU7
FU8
FU9
C3
3L1
1L3
3L2
3 HTR
C3
Heater
Contactor
CR
FU10
FU11
FU12
4L1
4L3
4L2
1
Mtr
Customer
Connect
Feed Water
Motor
10L
30L
20L
IT1
IT3
IT2
CR
Wire Color Code
B = Black
BR = Brown
R = Red
O = Orange
Y = Yellow
G = Green
BL = Blue
W = White
Diagram 5
2PS
BR
Heater
Contactors
Feed Water
Boiler On
3
GND
B
FU12
B
1PB
Off
2
GND
1
GND
1 HTR
C1
FU1
FU2
FU3
FU11
FU10
H1
H2
X1
X3
L3
1L1
1L3
1L2
L2L1
X2
X4
Optional Transformer
1
1
C1
2
2
C2
R
1LT
Y
On
IFS
O
1PS
O
O
W
Feed Water
Electrical
Connection
2
1
2TB
2 GND
1
HTR
FU12
1PB
Cabinet Exterior Left Side Cabinet Exterior Right Side
Panel Layout
2
HTR
C2
FU
4 5 6
1TB
1 GND
3
GND
H4
H3
2 HTR
C2
FU4
FU5
FU6
2L1
2L3
2L2
C1
FU
1 2 3
3
HTR
3 HTR
3L1
3L3
3L2
CR
FU7
FU8
FU9
4L1
4L3
4L2
1
Mtr
Customer
Connect
Feed Water
Motor
10L
30L
20L
IT1
IT3
IT2
CR
Wire Color Code
B = Black
BR = Brown
R = Red
O = Orange
Y = Yellow
G = Green
BL = Blue
W = White
6
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