Blodgett CB24G-10K Installation Manual
DIRECT STEAM KETTLES MOUNTED ON
GAS STEAM BOILER CABINETS
INSTALLATION – OPERATION – MAINTENANCE
BLODGETT OVEN COMPANY
www.blodgett.com
44 Lakeside Avenue, Burlington, Vermont 05401 USA Telephone: (802) 658-6600 Fax: (802) 864-0183
S000103 Rev A (3/07)
1
IMPORTANT NOTES FOR INSTALLATION AND OPERATION
This is the safety alert symbol. It is used to alert you to
potential personal injury hazards. Obey all safety messages
that follow this symbol to avoid possible injury or death.
FOR YOUR SAFETY: Do not store or use gasoline or other flammable
vapours or liquids in the vicinity of this or any other appliance.
PURCHASER: Instructions to be followed in the event that the operator of this
appliance smells gas must be posted in a prominent location. This information
shall be obtained by consulting the local gas supplier.
Do not attempt to operate this unit in the event of a power failure.
Keep the appliance area free and clear from combustibles.
Do not obstruct the flow of combustion and ventilation air.
Adequate clearances must be maintained for servicing and proper operation.
WARNING: Improper installation, operation, adjustment, alteration,
service or maintenance can cause property damage, injury or death.
Read the installation, operating and maintenance instructions
thoroughly before installing, operating or servicing this equipment.
NOTICE: Contact the factory, the factory representative or local
service company to perform maintenance and repairs.
WARNING: DISCONNECT UNIT FROM POWER SUPPLY BEFORE
CLEANING OR SERVICING APPLIANCE.
Intended for commercial use only. Not for household use.
This manual should be retained for future reference.
It is recommended that this manual be read thoroughly and that all instructions be
followed carefully.
2
TABLE OF CONTENTS
DESCRIPTION PAGE
1.0 Service Connections .......................................................................................... 4
2.0 Installation Instructions .................................................................................... 10
3.0 Operating Instructions ...................................................................................... 12
4.0 Operation Instructions for CSD-1 Equipped Units .............................................. 15
5.0 Periodic Maintenance ...................................................................................... 18
6.0 Adjustments ...................................................................................................... 21
7.0 Troubleshooting ............................................................................................... 22
8.0 Introduction - Direct Steam Kettles .................................................................. 24
9.0 Operating Procedures ...................................................................................... 24
10.0 Cleaning Procedures ....................................................................................... 25
11.0 Preventive Maintenance .................................................................................. 26
3
1.0 SERVICE CONNECTIONS
S
ELECTRICAL CONNECTION: ½”conduit
connection to controls. 120 volts, single phase
with grounding wire required unless otherwise
specified..
GAS CONNECTION: 3/4” IPS supply line required.
Natural Gas 4”(102mm) WC minimum
Propane 11” (279mm) WC minimum
STEAM TAKE-OFF CONNECTION: 3/4”
IPS optional to operate adjacent
equipment.
DRAIN: 2” IPS piped to open floor drain.
No solid connection.
COLD WATER: 3/8” O.D. tubing at 25-50
PSI (170-345 kPa).
WATER QUALITY STATEMENT
Water quality is the major factor affecting the performance of your appliance. If you are unsure of water quality, consult a
local water treatment specialist and have the water analyzed. Your water supply must be within these general guidelines:
Total dissolved solids
Total alkalinity
Silica
Chlorine
pH Factor
Water which fails to meet these standards should be treated by installation of a water conditioner.
FAILURE OR MALFUNCTION OF THIS APPLIANCE DUE TO POOR WATER QUALITY IS NOT COVERED UNDER WARRANTY.
Less than 60 PPM
Less than 20 PPM
Less than 13 PPM
Less than 1.5 PPM
7.0-8.5
250,000
300,000 87.9
73.3
200,000 58.6
MODEL
CB24G-6K
10
36 12
CB24G- K
CB G- K
140,000 41.0
BTU/HOUR KW/HOUR
NO
NO YES
YES
YES YES
YES YES
24”
36”
NOTE: SPLASH GUARD NOT SHOWN ON FRONT VIEW
DIMENSIONS ARE IN INCHES [MM]
REAR FLANGED
FOOT DETAIL
7/16" [11mm] HOLES
ON 2.5 [63] B.C.
2 EQUALLY SPACED
Ø
B
S
18 [457]
75 [191]
6.5 [165]
2.75 [70]
0.25 [6]
26 [660]
C
6 [152]
75 [191]
24” CABINET, 200,000 BTU
S
36” CABINET
24” CABINET
S
K
G
F
D
H
E
J
L
33 [838]
M
24 [610]
36 [914]
DIMENSIONS
A B
C
D E F
G
H
J
K L M
MODEL CAPACITY UNITS
CB24G-6K
CB24G-10K
CB24G-12K
6 gallons
23 litres
10 gallons
38 litres
12 gallons
45 litres
inches
mm
inches
mm
inches
mm
12
305
16
406
16
406
14.5
368
15
381
17
432
56.75
1441
55.75
1416
57.75
1469
3762.5645.75
146
4.75
121
3.5
89
11
2798203
12
305
9
229
6
152
6
152
Models CB24G-6K, CB24G-10K and CB24G-12K
4
Model CB36G-6-6K
S
ELECTRICAL CONNECTION: ½”conduit
connection to controls. 120 volts, single phase with
grounding wire required unless otherwise
specified..
GAS CONNECTION: 3/4” IPS supply line required.
STEAM TAKE-OFF CONNECTION: 3/4”
IPS optional to operate adjacent
equipment.
COLD WATER: 3/8” O.D. tubing at 25-50
PSI (170-345 kPa)
DRAIN: 2” IPS piped to open floor
drain. No solid connection.
SINK DRAIN: 1-1/8” O.D. tubing at
25-50 PSI (170-345 Kpa)
NOTE: SPLASH GUARD NOT SHOWN ON FRONT VIEW
DIMENSIONS ARE IN INCHES [MM]
REAR FLANGED
FOOT DETAIL
7/16" [11mm] HOLES
ON 2.5 [63] B.C.
2 EQUALLY SPACED
Ø
S
31 [787]
27 [686]
18 [457]
14.5 [368]
19.33 [491]
32 [813]
6 [152]
7.5
[457]
2.75
[70]
5.75 [146]
Ø12 [305]
S
6.75 [171]
8 [203]
3 [76]
2.38 [60]
26.63 [676]
10 [254]
3 [76]
36 [914]
0.63 [16]
4.88 [124]
33 [838]
WATER QUALITY STATEMENT
Water quality is the major factor affecting the performance of your appliance. If you are unsure of water quality, consult a
local water treatment specialist and have the water analyzed. Your water supply must be within these general guidelines:
Total dissolved solids
Total alkalinity
Silica
Chlorine
pH Factor
Water which fails to meet these standards should be treated by installation of a water conditioner.
FAILURE OR MALFUNCTION OF THIS APPLIANCE DUE TO POOR WATER QUALITY IS NOT COVERED UNDER WARRANTY.
Less than 60 PPM
Less than 20 PPM
Less than 13 PPM
Less than 1.5 PPM
7.0-8.5
250,000
300,000 87.9
73.3
200,000 58.6
MODEL
CB36G-6-6K
140,000 41.0
BTU/HOUR KW/HOUR
5
Model CB42G-10-6K
S
ELECTRICAL CONNECTION: ½”conduit
connection to controls. 120 volts, single phase
with grounding wire required unless otherwise
specified..
GAS CONNECTION: 3/4” IPS supply line required.
STEAM TAKE-OFF CONNECTION: 3/4”
IPS optional to operate adjacent
equipment.
DRAIN: 2” IPS piped to open floor drain.
No solid connection.
COLD WATER: 3/8” O.D. tubing at 25-50
PSI (170-345 kPa) (140,000 BTU boiler)
HOT WATER: 3/8” O.D. tubing at 25-50
PSI (170-345 kPa)
NOTE: SPLASH GUARD NOT SHOWN ON FRONT VIEW
DIMENSIONS ARE IN INCHES [MM]
REAR FLANGED
FOOT DETAIL
7/16" [11mm] HOLES
ON 2.5 [63] B.C.
2 EQUALLY SPACED
Ø
S
15 [381]
Ø16 [406]
Ø12
[305]
14.5 [368]
66.13 [1680]
32 [813]
6 [152]
18 [457]
7.5 [191]
2.75 [70]
5.75 [146]
3 [76]
8 [203]
S
6.75 [171]
3 [76]
3.5 [89]
11 [279]
42 [1067]
29.25 [743]
33 [838]
WATER QUALITY STATEMENT
Water quality is the major factor affecting the performance of your appliance. If you are unsure of water quality, consult a
local water treatment specialist and have the water analyzed. Your water supply must be within these general guidelines:
Total dissolved solids
Total alkalinity
Silica
Chlorine
pH Factor
Water which fails to meet these standards should be treated by installation of a water conditioner.
FAILURE OR MALFUNCTION OF THIS APPLIANCE DUE TO POOR WATER QUALITY IS NOT COVERED UNDER WARRANTY.
Less than 60 PPM
Less than 20 PPM
Less than 13 PPM
Less than 1.5 PPM
7.0-8.5
250,000
300,000 87.9
73.3
200,000 58.6
MODEL
CB42G-10-6K
140,000 41.0
BTU/HOUR KW/HOUR
6
Model CB42G-10-10K
WATER QUALITY STATEMENT
Water quality is the major factor affecting the performance of your appliance. If you are unsure of water quality, consult a
local water treatment specialist and have the water analyzed. Your water supply must be within these general guidelines:
Total dissolved solids
Total alkalinity
Silica
Chlorine
pH Factor
Water which fails to meet these standards should be treated by installation of a water conditioner.
FAILURE OR MALFUNCTION OF THIS APPLIANCE DUE TO POOR WATER QUALITY IS NOT COVERED UNDER WARRANTY.
Less than 60 PPM
Less than 20 PPM
Less than 13 PPM
Less than 1.5 PPM
7.0-8.5
250,000
300,000 87.9
73.3
200,000 58.6
MODEL
CB42G-10-10K
140,000 41.0
BTU/HOUR KW/HOUR
S
ELECTRICAL CONNECTION: Unless
otherwise specified, field wire electrical
connection to be 120 volts 60 Hz maximum
300 watts with grounding wire.
DRAIN: 2” IPS piped to open floor drain. No
solid connection.
STEAM TAKE-OFF CONNECTION: 3/4”
IPS optional to operate adjacent equipment
COLD & HOT WATER: 3/8" O.D. tubing at
25-50 PSI (170-345 kPa)
GAS CONNECTION: 3/4” IPS
supply line required. Natural Gas:
4” WC (102mm) minimum.
Propane: 11” WC (279mm)
minimum.
NOTE: SPLASH GUARD NOT
SHOWN ON FRONT VIEW
DIMENSIONS ARE IN INCHES [MM]
REAR FLANGED
FOOT DETAIL
7/16" [11mm] HOLES
ON 2.5 [63] B.C.
2 EQUALLY SPACED
Ø
S
6 [152]
32 [813]
15 [381]
65.13 [1654]
28.88 [733]
6 [152]
24 [610]
29.25 [743]
S
33 [838]
6 [152]
11 [279]
2.5 [64]
7
WARNING: Plumbing connections must comply with applicable
sanitary, safety, and plumbing codes.
1.0 SERVICE CONNECTIONS
PLUMBING CONNECTIONS
WATER SUPPLY CONNECTION
The incoming cold water supply connection, at the rear of the appliance cabinet, requires
3/8" tubing and water pressure of 25 - 50 psi. A manual shut-off valve must be provided
convenient to the appliance; this valve should be open when the boiler is in operation.
Incoming hot water connection (½” (13 mm) ) nominal tube for kettle fill faucet must be
installed. See Service Connections.
FAILURE OR MALFUNCTION OF THIS APPLIANCE DUE TO POOR WATER
QUALITY IS NOT COVERED UNDER WARRANTY. SEE WATER QUALITY
STATEMENT ON THE PRECEEDING PAGES.
DRAIN CONNECTION
The steamer drain (2" IPS) should be piped to a floor drain near the steamer. There
should be no solid drain connection; an “open gap” between the steamer and the floor
drain is required.
GAS CONNECTION
1. The data plate on the cabinet door of the boiler indicates the type of gas your unit is
equipped to burn. DO NOT connect to any other gas type.
Keep the appliance area free and clear from combustible substances. Do not
obstruct the flow of combustion and ventilation air.
2. A 3/4" NPT line is provided at the rear for the connection. Each boiler is equipped
with an internal pressure regulator which is set at 3.5" W.C. manifold pressure for
natural gas or 10.5" W.C. for LP gas. Use the 1/8" pipe tap on the burner manifold
for checking pressure.
An adequate gas supply is necessary. Undersized or low pressure lines will restrict the
volume of gas required for satisfactory performance. A steady supply pressure, between
7" W.C. and 14" W.C. for natural gas and 11" W.C. and 14" W.C. for propane gas is
recommended. With all units operating simultaneously, the manifold pressure on all
units should not show any appreciable drop. Fluctuations of more than 25% on natural
gas, and 10% on propane gas, will create pilot problems and affect burner operating
characteristics.
8
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