BURN AND SCALD HAZARD! WARNING Manufacturer Requires Installation Of Field Supplied Anti-Scald Valve
Single Boiler Primary/Secondary Series Loop Zoned System WITH ZONE VALVES
Single Boiler Primary/Secondary Series Loop Zoned WITH ZONE PUMPS
Single Boiler Primary/Secondary Series Loop PUMPING
DHW Resistor Harness and Relay Kit (550003082)..........................................................................53-56
2
PN 240011074 REV C, [11/01/2017]
IMPORTANT SAFETY INFORMATION
1. General
Boiler installation shall be completed by qualified agency. See
Installation, Operation & Maintenance Manual for additional
information.
WARNING
!
Fire, explosion, asphyxiation and electrical
shock hazard. Improper installation could
result in death or serious injury. Read this
manual and understand all requirements
before beginning installation.
2. Become familiar with symbols identifying
potential hazards.
This is the safety alert symbol. Symbol alerts you to
potential personal injury hazards. Obey all safety messages
following this symbol to avoid possible injury or death.
!
DANGER
Indicates a hazardous situation which, if not
avoided, WILL result in death or serious injury.
3. Installation shall conform to requirements of
authority having jurisdiction or in absence of such
requirements:
•
United States
• National Fuel Gas Code, ANSI Z223.1/NFPA 54
• National Electrical Code, NFPA 70.
• Canada
• Natural Gas and Propane Installation Code, CAN/CSA
B149.1.
• Canadian Electrical Code, Part I, Safety Standard for
Electrical Installations, CSA C22.1
4.Where required by authority having jurisdiction,
installation shall conform to Standard for Controls
and Safety Devices for Automatically Fired Boilers,
ANSI/ASME CSD-1.
Additional manual reset low water cutoff may be required.
5. Requirements for Commonwealth of
Ma ssachusetts:
Boiler installation must conform to Commonwealth of
Massachusetts code 248 CMR which includes but is not limited
to:
• Installation by licensed plumber or gas fitter.
.
!
WARNING
Indicates a hazardous situation which, if not
avoided, could result in death or serious injury.
!
CAUTION
Indicates a hazardous situation which, if not
avoided, could result in minor or moderate
injury.
NOTICE
Used to address practices not related to
personal injury.
3
PN 240011074 REV C, [11/01/2017]
CHB - HYDRONIC PIPING
NOTICE
Illustrations are meant to show system piping
concept only. Installer is responsible for all
equipment and detailing required by authority
having jurisdiction.
NOTICE
Arrange piping to prevent water dripping onto
boiler.
Piping installation, materials, and joining methods shall conform
to requirements of authority having jurisdiction or in absence
of such requirements:
• USA - National Fuel Gas Code, ANSI Z223.1/NFPA 54
• Canada - Natural Gas and Propane Installation Code,
CAN/CSA B149.1
Manufacturer requires all domestic hot water (DHW)
installations use an anti-scald valve. Local codes may
require additional equipment (expansion tank, relief valves,
etc.) select and size equipment to suit installation and meet
code requirements.
CHB - Piping Legend
Quick Reference Chart - CHB Boiler
CHB - Hydronic Piping DescriptionPage
Single Boiler Primary/Secondary Series Loop Zoned System With Zone Valves and Optional Indirect Tank (Fig. 1)6
Single Boiler Primary/Secondary Series Loop Zoned With Zone Pumps and Optional Indirect Tank (Fig. 2)7
Single Boiler Primary/Secondary Series Loop PUMPING and Optional Indirect Tank (Fig. 3)8
CHB - Wiring DescriptionPage
Single Zone, WITHOUT DHW Tank, with optional Supply System Pump ( Fig. 4)
Boiler with DHW Tank/Sensor, with Optional System Supply Pump (Fig. 5)
System Supply Pump Connections (Key 307) using Isolation Relay (Fig. 6)
Multiple Zone Valves, WITHOUT Indirect Tank (CH only) (Fig. 7)
Multiple Zone Valves, WITH Indirect Tank/ Sensor (Fig. 8)
Multiple Zone Pumps, WITHOUT Indirect Tank (CH only) (Fig. 9)
Multiple Zone Pumps, WITH Indirect/Sensor (Fig. 10)
Multiple Zone Pumps, WITH Indirect Tank/Mechanical Thermostat/Isolation Relay (Fig. 11)
Application Tables For : CHB - With Indirect Hot Water Tank
10
10
11
13
14
16
17
18
29
4
PN 240011074 REV C, [11/01/2017]
CHB - HYDRONIC PIPING
FIGURE 1 - CHB - Single Boiler Primary/Secondary Series Loop Zoned System WITH ZONE VALVES and
Optional Indirect Tank
*Hot Water
Supply
(Tempered)
Cold
Water
Supply
T & P
Relief
Valve to
Drain
S
Tank
DHW
Indirect
Optional
2
1
Tank
Sensor
For indirect tank applications using boiler’s on-board pump refer to Applications Tables for ow
rate and available pump head. Consult indirect tank manufacturer for indirect tank performance.
CH/System
Pump
5
Cold Water
Supply
BOILER
12” (305mm) Maximum
Separation
Limit combined supply and return pipe
lengths to maximum total linear length
of 20 ft. (6.1 m) between boiler and
closely spaced tees, when minimum 1”
NPT pipe size is used. Linear length
may be increased if supply and return
pipe size is increased to limit pressure
drop
1
Note
2
Note
* Manufacturer requires all domestic hot
water (DHW) installations use an anti-scald
valve. Local codes may require additional
Note
PN 240011074 REV C, [11/01/2017]
equipment (expansion tank, relief valves,
etc.) Select and size equipment to suit
installation and meet code requirements.
CHB - HYDRONIC PIPING
FIGURE 2 - CHB -Single Boiler Primary/Secondary Series Loop Zoned WITH ZONE PUMPS and Optional
Indirect Tank
* Hot
Water
Supply
Tempered
Cold
Water
Supply
T & P
Relief
Valve to
Drain
Tank
Sensor or
Thermostat
Indirect
Optional
DHW Tank
2
For indirect tank applications using boiler’s on-board pump refer to
Applications Tables for ow rate and available pump head. Consult indirect
1
tank manufacturer for indirect tank performance.
Figure 11
Zone
Pump
6
Cold Water
Supply
Optional Priority Zone 1
Pump (if needed) See Wiring
BOILER
12” (305mm) Maximum
Separation
Limit combined supply and return pipe
lengths to maximum total linear length
of 20 ft. (6.1 m) between boiler and
closely spaced tees, when minimum 1”
NPT pipe size is used. Linear length
may be increased if supply and return
pipe size is increased to limit pressure
drop
1
Note
2
Note
* Manufacturer requires all domestic hot
water (DHW) installations use an anti-scald
Note
PN 240011074 REV C, [11/01/2017]
valve. Local codes may require additional
equipment (expansion tank, relief valves,
etc.) Select and size equipment to suit
installation and meet code requirements.
CHB - HYDRONIC PIPING
FIGURE 3 - CHB -Single Boiler Primary/Secondary Series Loop PUMPING and Optional Indirect Tank
* Hot Water
Supply
Cold
Water
Supply
* Manufacturer requires all domestic
hot water (DHW) installations use an
anti-scald valve. Local codes may
require additional equipment (expansion
tank, relief valves, etc.) Select and size
equipment to suit installation and meet
code requirements.
Note
T & P
Relief
Valve to
Drain
1
Tank
Sensor or
Thermostat
Indirect
Optional
DHW Tank
2
1
1
For indirect tank applications using
boiler’s on-board pump refer to
Applications Tables for ow rate
and available pump head. Consult
indirect tank manufacturer for
indirect tank performance.
BOILER
12” (305mm) Maximum
Pump
CHSystem
Separation
1
Limit combined supply and return pipe
lengths to maximum total linear length
of 20 ft. (6.1 m) between boiler and
closely spaced tees, when minimum 1”
NPT pipe size is used. Linear length
may be increased if supply and return
pipe size is increased to limit pressure
2
drop
1
Cold
Water
7
Supply
Note
PN 240011074 REV C, [11/01/2017]
Note
CHB - WIRING DIAGRAMS
CHB Boiler Wiring Diagrams
All field wiring shall conform to the authority having
jurisdiction or, in the absence of such requirements to:
USA: National Electrical Code, ANSI/NFPA 70,
Canada: Canadian Electrical Code, Part I, CSA
C22.1: Safety Standard for Electrical Installations.
A. CHB Single Zone Indirect Storage Tank is
NOT used:
• Terminals 7 and 8 (Key 155) on CHB terminal strip,
shall have two (2) factory supplied resistors wired in
parallel.
• Single room thermostat (Key 72) control internal pump
and boiler operation. Remove jumper when connecting
thermostat or zone equipment.
• See Wiring Figure 4.
B. When System Supply Pump is needed:
• External supply system pump connection terminals
(Key 307) are being added to the rear of the control
box and will be limited to an additional 1 Amp pump
operation. Internal control fusing will prevent higher
pump operation.
C. Use of Indirect Storage Tank (DHW)/
Single Zone :
Terminals 7 and 8 (#155 in Key) resistors are removed.
Attach Indirect Tank Sensor element to terminals #7 and #8
(Key 155) on CHB terminal strip. See Figure 5.
NOTICE
Important:
• Before connecting the room thermostat,
remove jumper on terminal block. (Key 72)
• Before connecting optional Indirect Tank
Sensor, remove two (2) resistors. (Key 155)
• Before connecting Low Water Cutoff remove
jumper on terminal block. (Key 370)
• If control IS NOT equipped with these terminals, or
larger pump capacity is required. Install an external
pump/relay controller circuit. See Instructions and
wiring diagram for adding external pump (615000137)
provided with this manual.
• If control IS equipped with (Key 307) contacts and
larger than 1 Amp circulating pump is required, use an
isolation relay 120 VAC and separate 120 VAC power
supply. See wiring Figure 6. Manufacture recommends
use of isolation relay (240011284) or equivalent.
Wiring Legend CHB/CCB
Pump - Zone
Thermostat
S
N.O.
Indirect Tank (DHW Sensor)
Resistor
Valve - Zone
DHW Flow Switch (CCB only)
8
PN 240011074 REV C, [11/01/2017]
CHB - WIRING DIAGRAMS
POWER SUPPLY Cord
6
T
T
POWER SUPPLY Cord
FIGURE 4 - CHB Boiler with Optional Supply System Pump Single Zone - No Indirect Tank (DHW)
CHB BOILER
L1 (Hot)
Key 307
K
KEY 370
KEY 72
T
T
1
Remove
Jumper
if used
2
43
56
T
Low Voltage
Room Thermostat
FIGURE 5 - CHB Boiler Single Zone with DHW Indirect Tank and Sensor
ey 155
8
7
10K
1.8K
Resistors (Factory wired)
System Supply
Pump Connection
CH System
Pump
(If Used)
GND
NEU
120 VAC
120V/60HZ
Low Voltage
Room Thermostat
KEY 72
T
1
Remove
Jumper
if used
CHB BOILER
KEY 370
243
Remove two (2) factory installed
Resistors when using Indirect
K
ey 155
5
7
8
Indirect Tank
S
DHW Sensor
Tank Sensor on Key 155.
[Use kit 550002958]
L1 (Hot)
Key 307
System Supply
Pump Connection
CH System
Pump
(If used)
GND
NEU
120 VAC
120V/60HZ
9
PN 240011074 REV C, [11/01/2017]
CHB/CCB - WIRING DIAGRAM
FIGURE 6 - Isolation Relay - Pump Circuit Using System Pump Connections
BOILER CONTROL
System Supply
Pump Connection
Key
307
120 VAC
POWER SUPPLY CORD
120V/60HZ
JUNCTION BOX
CH System
Pump
(IF≥1 AMP)
(120VAC)
Isolation Relay*
240011284
RIBU1C
120 VAC
Power
Supply
Note
If larger than 1 amp system
supply pump is required, use
an isolation relay 120 VAC and
separate 120 VAC power supply.
Manufacturer requires use of
isolation relay (240011284) or
equivalent.
If only Central Heating is required on multi-zone valve
application - use factory supplied resistors on Key 155
terminal strip:
• Boiler call for heat contacts (key 72) are wired to
Argo Zone control X-X terminals.
• Zone thermostats and valves are wired to Argo
Control.
• See wiring Figure 7.
2.
If DHW tank is applied to Multi-Zone Valve application use Indirect Tank Sensor:
• Attach sensor to boiler control (Key 155) terminals 7 & 8.
Boiler control will set priority for DHW operation.
• Boiler call for heat contacts (Key 72) are wired to Argo
Zone control X-X Terminals.
• Zone thermostats and valves are wired to Argo
Control.
NOTICE
Important:
• Before connecting to Key 72 terminals,
remove jumper on terminal block. (Key 72)
• Before connecting optional Indirect Tank
Sensor, remove two (2) resistors. ( Key 155)
• Before connecting Low Water Cutoff remove
jumper on terminal block. (Key 370)
• See wiring Figure 8.
NOTICE
Set Argo Priority switch to OFF position.
11
PN 240011074 REV C, [11/01/2017]
CHB - WIRING DIAGRAM
VALVE
VALVE
VALVE
VALVE
Low Voltage Zone Valve(S)
GND
NEU
FIGURE 7 - CHB - Boiler Zoned System with Multiple ZONE VALVES WITHOUT Indirect Tank
Low Volt Room Thermostats
Lights
Argo AZ- 4CP
Set Priority Switch
“OFF”
For Central
Heating Only
K
ey 72
CHB BOILER
K
Remove
Jumper
if used
ey 155KEY 370
10K
1.8K
Factory Supplied
Resistors
Key 307
Connection
L1 (Hot)
120 VAC
System
Pump
POWER SUPPLY CORD
120V/60HZ
CH SYSTEM
PUMP
(If Used)
12
PN 240011074 REV C, [11/01/2017]
CHB - WIRING DIAGRAM
VALVE
VALVE
VALVE
VALVE
Low Voltage Zone Valve(S)
L
N
FIGURE 8 - CHB - Boiler Zoned System with Multiple ZONE VALVES WITH Indirect Tank
Low Volt Room Thermostats
K
ey 72
Lights
Argo AZ- 4CP
CHB BOILER
KEY 370
K
ey 155
Key 307
System
Connection
L1 (Hot)
GND
NEU
120 VAC
Set Priority Switch
“OFF”
Pump
CH SYSTEM
PUMP
(If Used)
WITH INDIRECT
TANK
Remove
Jumper
if used
S
INDIRECT TANK
SENSOR
Remove two (2) factory
installed resistors when
using Indirect Tank
Sensor on Key 155.
[Use kit 550002958]
13
POWER SUPPLY CORD
120V/60HZ
PN 240011074 REV C, [11/01/2017]
CHB - WIRING DIAGRAM
E. Multi-Zone Pump System Using Argo ARM
Controller:
1 - If Indirect Storage Tank IS NOT applied to a multi-zoned
piping system:
• Boiler thermostat contacts (Key 72) are wired to
Argo ARM Zone Pump Control Terminals (X-X)
• Zone thermostats and zone pumps are wired to
ARGO Controller
• Priority Switch OFF
• CH Heating only
• See Wiring Figure 9
2 - If Indirect Storage Tank IS applied to multi-zoned pump
piping assembly:
A. Tank sensing element is applied to boiler terminal
strip 7 & 8 (Key 155).
• Set Argo priority switch “OFF” if
Zone 1 Priority IS NOT used.
Set Argo priority switch “ON” if Zone 1 Priority IS
used.
• See wiring Figure 10
• DHW circuit is controlled by boiler control and is
Priority heat demand.
B. Storage tank mechanical thermostat is wired across
zone 1 Priority contacts of Argo Control (Tw/Tr).
• Apply Resistor Kit (550003082). Resistor Kit
includes resistor wire harness and isolation relay
(24 Vac).
• Set Argo priority switch ON - DO NOT operate in
“OFF” position.
• See wiring Figure 11
• DHW circuit is Priority heat demand and is
controlled by Argo ARM Zone Control.
NOTICE
Important:
• Before connecting to Key 72 Terminals, remove jumper on
terminal block.
• Before connecting Low Water Cutoff remove jumper on
terminal block. (Key 370)
14
PN 240011074 REV C, [11/01/2017]
CHB - WIRING DIAGRAM
FIGURE 9 -
CHB Boiler WITH MULTIPLE ZONE PUMPS WITHOUT Indirect Tank (DHW)
Low Volt
Room Thermostats
T
24VAC
Transformer
TT
Argo ARM Zone Pump Control
G
GG
G
Zone Pumps
Set Priority Switch
“OFF”
CH Heating Only
High Voltage Power
Supply
120V/60Hz
CHB BOILER
KEY 72
Remove
Jumper
if used
KEY 370KEY 155
10K
1.8K
KEY 307
System Pump
Connection
L1
GND
NEU
120 VAC
POWER SUPPLY CORD
120V/60HZ
CH System
Pump
(If used)
15
PN 240011074 REV C, [11/01/2017]
CHB - WIRING DIAGRAM
FIGURE 10 -
CHB Boiler WITH MULTIPLE ZONE PUMPS WITH Indirect Tank (DHW)
Low Volt
Room Thermostats
T
24VAC
Transformer
TT
Argo ARM Zone Pump Control
G
Zone Pumps
GG
Set Priority Switch
“OFF”
High Voltage Power
Supply
G
120V/60Hz
CHB BOILER
KEY 72
KEY 370
Remove
Jumper
if used
KEY 155
s
INDIRECT TANK
DHW SENSOR
KEY 307
System Pump
Connection
L1
GND
NEU
120 VAC
POWER SUPPLY CORD
120V/60HZ
CH System Pump
(If used)
WITH DHW
INDIRECT TANK
16
PN 240011074 REV C, [11/01/2017]
CHB - WIRING DIAGRAM
NOTICE
Important:
• Before connecting to Argo Control remove jumper on
terminal block. (Key 72)
• Before connecting Low Water Cutoff remove jumper on
terminal block. (Key 370)
FIGURE 11 -
NOTE: ZONE PUMPS WILL SHUTOFF DURING DHW PRIORITY W/ PRIORITY SWITCH ON
CHB Boiler WITH SECONDARY ZONE PUMPS AND DHW THERMOSTAT, WITH DHW RESISTOR KIT
Low Voltage
*Isolation Relay
YLW
BLU
ORG
24V 120V
W/BLK
W/YLW
DHW
Thermostat
Room Thermostats
Important:
W/BLU
Priority Switch
must be ON.
Argo ARM Zone Pump Control
24VAC
Transformer
*SUPPLIED IN
RESISTOR KIT
L
N
G
Zone Pumps
Power Supply
120V/60HZ
Optional: Connect indirect tank pump to
Priority Zone 1 terminals (if used).
550003082
CHB BOILER
KEY
BLU
WHT
155
RED
10K
1.8K
BRN
KEY 72
KEY 370
Remove
Jumper
if used
Wire Nuts
17
System Pump
Connection
KEY 307
120 VAC
POWER SUPPLY CORD
120V/60HZ
*RESISTOR WIRE
HARNESS
PN 240011074 REV C, [11/01/2017]
CH System
Pump
(If used)
CCB - HYDRONIC PIPING
NOTICE
Arrange piping to prevent water dripping onto
boiler.
A. Piping installation, materials, and joining methods shall
conform to requirements of authority having jurisdiction or in
absence of such requirements:
• USA - National Fuel Gas Code, ANSI Z223.1/NFPA 54
• Canada - Natural Gas and Propane Installation Code,
CAN/CSA B149.1
B. Manufacturer requires all domestic hot water (DHW)
installations use an anti-scald valve. Local codes may
require additional equipment (expansion tank, relief valves,
etc.) select and size equipment to suit installation and meet
code requirements.
Quick Reference Chart - CCB Boiler
CCB - Hydronic Piping Description
ANTI-SCALD WARNING AND PIPING RECOMMENDATION 19
Single Boiler Primary/Secondary Series Loop Zoned System WITH ZONE VALVES
Single Boiler Primary/Secondary Series Loop Zoned WITH ZONE PUMPS
Single Boiler Primary/Secondary Series Loop PUMPING
(g. 14)
(g. 13)
(g. 12)
CCB - Wiring Description
Boiler with Optional System Supply Pump (g. 15)23
Boiler with Multiple Zone Valves (g. 16)24
Boiler with Multiple Zone Pumps WITHOUT DHW Interface (ig. 17)26
Boiler with Multiple Zone Pumps with DHW Interface (g. 18)27
Page
20
21
22
Page
18
PN 240011074 REV C, [11/01/2017]
!
WARNING
Burn and scald hazard!
Manufacturer requires installation
of field supplied anti-scald valve.
Failure to follow these instructions could
result in death or serious injury.
CCB-150 DHW ANTI-SCALD PIPING
CH
Supply
DHW
Outlet
Boiler
Piping Legend
Cold Water
Supply
Tempering Valve
DHW
Inlet
CH
Return
PN 615000152 REV A [07/20/2015]
19
Hot
Water
Supply
(Tempered)
PN 240011074 [05/30/2015]
CCB - HYDRONIC PIPING
FIGURE 12 - CCB Single Boiler Primary/Secondary Series Loop Zoned System WITH ZONE VALVES
2
DHW - Cold Inlet
* DHW- Hot Outlet [See page 19]
1
BOILER
CH/System
Pump
20
Supply
Cold Water
12” (305mm) Maximum
Separation
Limit combined supply and return pipe
lengths to maximum total linear length of
20 ft. (6.1 m) between boiler and closely
spaced tees, when minimum 1” NPT
pipe size is used. Linear length may be
increased if supply and return pipe size is
increased to limit pressure drop
1
Note
2
Note
* Manufacturer requires all domestic hot water (DHW) installations use an
anti-scald valve. Local codes may require additional equipment (expansion
tank, relief valves, etc.) Select and size equipment to suit installation and
meet code requirements.
Note
PN 240011074 REV C, [11/01/2017]
CCB - HYDRONIC PIPING
FIGURE 13 - CCB -Single Boiler Primary/Secondary Series Loop Zoned WITH ZONE PUMPS
2
* DHW- Hot Outlet [See page 19]
DHW - Cold Inlet
1
(Field
Optional
supplied)
Flow Switch
BOILER
Cold
Water
Supply
21
Zone Pump
12” (305mm) Maximum
Separation
Limit combined supply and return pipe
lengths to maximum total linear length of
20 ft. (6.1 m) between boiler and closely
spaced tees, when minimum 1” NPT
pipe size is used. Linear length may be
increased if supply and return pipe size is
increased to limit pressure drop
1
Note
2
Note
* Manufacturer requires all domestic hot water (DHW) installations use an
anti-scald valve. Local codes may require additional equipment (expansion
tank, relief valves, etc.) Select and size equipment to suit installation and
meet code requirements.
Note
PN 240011074 REV C, [11/01/2017]
CCB - HYDRONIC PIPING
FIGURE 14 - CCB -Single Boiler Primary/Secondary Series Loop PUMPING
1
*DHW - Hot Outlet [See Page 19]
2
1
1
DHW - Cold Inlet
Optional
Flow Switch
(Field
Supplied)
BOILER
12” (305mm) Maximum Separation
Limit combined supply and return pipe
lengths to maximum total linear length of
20 ft. (6.1 m) between boiler and closely
spaced tees, when minimum 1” NPT
pipe size is used. Linear length may be
increased if supply and return pipe size is
increased to limit pressure drop
1
1
2
* Manufacturer requires all domestic hot water
(DHW) installations use an anti-scald valve. Local
codes may require additional equipment (expansion
tank, relief valves, etc.) Select and size equipment
to suit installation and meet code requirements.
Supply
CH/System
Pump
22
Cold Water
Note
Note
Note
PN 240011074 REV C, [11/01/2017]
CCB BOILER - WIRING DIAGRAMS
6
T
T
Power Supply Cord
1. CCB Boiler Wiring Diagrams
All field wiring shall conform to the authority having
jurisdiction or, in the absence of such requirements to:
USA: National Electrical Code, ANSI/NFPA 70,
Canada: Canadian Electrical Code, Part I, CSA
C22.1: Safety Standard for Electrical Installations.
2. CCB/Single Zone
Single room thermostat (Key 72) will control the internal
pump and boiler operation. Remove jumper when connecting
the thermostat or zone equipment.
See Figure 15.
3. CCB When System Supply Pump is
Needed:
• External system supply pump connection terminals
(Key307) are being added to the rear of the control box
and will be limited to an additional 1 AMP pump operation.
Internal fusing will prevent higher pump operation.
If a larger system pump is required use an isolation relay.
See Wiring Figure 6.
• If the Controller is not equipped with these terminals,
or a larger pump capacity is required. You will need to
install an external pump/relay controller circuit. See
Instructions And Wiring Diagram For Adding External
Pump (615000137) provided with this manual.
NOTICE
Important:
• Before connecting to Key 72 Terminals
remove jumper on terminal block.
• Before connecting Low Water Cutoff, remove
jumper on terminal block. (Key 370)
Wiring Legend CHB/CCB
Pump - Zone
Thermostat
S
Indirect Tank (DHW Sensor)
(CHB ONLY)
Resistor
Valve - Zone
DHW Flow Switch (CCB only)
FIGURE 15 - CCB Boiler with Optional Supply System Pump
CCB BOILER
KEY 370
KEY 72
T
1
Remove
Jumper If
Used
243
578
N.O.
L1 (Hot)
Key 307
GND
System Pump
Connection
CH System
Pump
(If used)
NEU
120 VAC
Low Voltage
Room Thermostat
23
120V/60HZ
PN 240011074 REV C, [11/01/2017]
CCB BOILER - WIRING DIAGRAMS
L1
(Hot)
NEU
GND
6
4. CCB - Using Multi-Zone Valve System
Boiler call for heat contacts (Key 72) are wired to Argo Zone
Control (x-x) terminals. Zone thermostats and zone valves
are to be wired to the Argo Zone Controller. See Figure 16.
Set Argo Priority Switch to OFF position. This disables priority
operation and all zone valves will operate independently. Refer
to Argo Controller instructions for switch setting and operation
information.
FIGURE 16 - CCB Boiler with Multiple Zone Valves
LOW VOLTAGE ROOM THERMOSTATS
LIGHTS
Argo AZ - 4CP
NOTICE
Important:
• Before connecting to Key 72 Terminals,
remove jumper on terminal block. (Key 72)
• Before connecting Low Water Cutoff, remove
jumper on terminal block. (Key 370)
SET
PRIORITY
TO OFF
K
ey 72
CCB BOILER
KEY 370
243
Remove
Jumper if
used
LOW VOLTAGE ZONE VALVES
SYSTEM PUMP
CONNECTION
CH SYSTEM
PUMP (If used)
K
ey 307
781
5
120 VAC
POWER SUPPLY CORD
120V/60HZ
24
PN 240011074 REV C, [11/01/2017]
CCB BOILER - WIRING DIAGRAMS
5. CCB Using Multi-Zone Pump System
Wiring of Argo Control may include Priority Zone Control.
Boiler thermostat contacts (Key 72) are wired to Argo ARM
Zone Pump Control terminals (x-x). Use Argo ARM Zone Pump
Controller and wire as shown in Figure 17 or 18.
1.
When priority zone control is not desired. Wire zone
pumps and thermostats as shown in Figure 17. Set
Priority to OFF. Secondary zone pumps Will Not shutoff
during DHW call for heat.
2.
When priority zone control is desired, wire zone pumps
and thermostats as shown in Figure 18. Wire priority
flow controller (not supplied ) across Zone 1 (Priority)
thermostat connections. Zone 1 pump terminals are not
used, unless a Priority Pump if being applied. Set the
Argo Priority switch to ON, secondary pumps Will shutoff
during DHW call for heat.
NOTICE
Important:
• Before connecting to room Key 72 Terminals,
remove jumper on terminal block.
• Before connecting Low Water Cutoff, remove
jumper on terminal block. (Key 370)
25
PN 240011074 REV C, [11/01/2017]
POWER SUPPLY
120V/60HZ
L1
(Hot)
NEU
GND
CCB BOILER - WIRING DIAGRAMS
REMOVE
6
FIGURE 17 - CCB Boiler with Multiple Zone Pumps WITHOUT DHW Interface
LOW VOLTAGE ROOM THERMOSTATS
24VAC
Transformer
Argo ARM Zone
Pump Control
NOTICE
Important:
• Before connecting to Argo
Control remove jumper on
terminal block. (Key 72)
• Before connecting Low
Water Cutoff remove jumper
on terminal block. (Key 370)
SET PRIORITY
SWITCH TO
“OFF”
K
ey 72
L
N
G
ZONE PUMPS
CCB BOILER
SECONDARY PUMPS WILL NOT SHUTOFF
DURING DHW PRIORITY WHEN ARGO PRIORITY
SWITCH IS “OFF”
K
ey 307
KEY 370
2435
81
6
7
SYSTEM PUMP
CONNECTION
CH SYSTEM
PUMP (If used)
120 VAC
JUMPER IF
USED
26
POWER SUPPLY CORD
120V/60HZ
PN 240011074 REV C, [11/01/2017]
CCB BOILER - WIRING DIAGRAMS
POWER SUPPLY
120V/60HZ
L1
NEU
GND
6
FIGURE 18 - CCB Boiler with Multiple Zone Pumps WITH DHW Interface
DHW
N.O.
FLOW
SWITCH
(0.50 GPM)
LOW VOLTAGE ROOM THERMOSTATS
(Zone 2-4)
NOTICE
Important:
• Before connecting to Argo
Control remove jumper on
terminal block. (Key 72)
• Before connecting Low
Water Cutoff remove jumper
on terminal block. (Key 370)
24VAC
Transformer
Argo ARM Zone
Pump Control
ZONE PUMPS
SET
PRIORITY
SWITCH TO
“ON”
L
N
G
SECONDARY PUMPS WILL SHUTOFF DURING
DHW PRIORITY WHEN ARGO PRIORITY SWITCH
KEY 370
K
ey 72
1
REMOVE
JUMPER IF
USED
CCB BOILER
IS ON.
243578
27
SYSTEM PUMP
CONNECTION
(Hot)
K
ey 307
120 VAC
POWER SUPPLY CORD
120V/60HZ
PN 240011074 REV C, [11/01/2017]
CH SYSTEM
PUMP (If used)
APPLICATION TABLES FOR : CHB - INDIRECT HOT WATER TANK
CHB 100, CHB130, CHB150
Available Pump Head [feet w.c.]
3/4" PIPE
EQUIV.INTERNAL
PIPE LENGTHPUMP
(FEET)(GPM)
10 FT.7.4
30 FT.6.9
50 FT.6.5
1" PIPE
EQUIV.INTERNAL
PIPE LENGTHPUMP
(FEET)(GPM)
20 FT.7.5
50 FT.7.3
100 FT.6.9
1- 1/4" PIPE
EQUIV.INTERNAL
PIPE LENGTHPUMP
(FEET)(GPM)
50 FT.7.5
100 FT.7.4
200 FT.7.3
CONTINUOUS RATING @ MAXIMUM INPUT
(GAL/HR.)
INDIRECT TANK - H2O30 / H2O40 / H2O40 L / H2O50
H2O60 / H2O60 L / H2O80 / H2O115
GPM
140 °F115 °F140 °F115 °F140 °F115 °F
7.5
113156
146202151 / 169209 / 234
7.3
110152
142197147 / 164203 / 228
7.0
106146
136189141 / 158195 / 218
6.5
98135
127175131 / 146181 / 203
CHB-100
CHB-130
CHB-150
2.6
3.0
3.5
FROM BOILER
FROM BOILER
FROM BOILER
(FT - H2O)
2.5
3.6
5.2
PRESS. HEAD
(FT - H2O)
PRESS. HEAD
PRESS. HEAD
(FT - H2O)
3.0
5.2
6.8
28
PN 240011074 REV C, [11/01/2017]
APPLICATION TABLES FOR : CHB - INDIRECT HOT WATER TANK
Table Based on BOILER OUTPUT (BTUH/HR)MAX.BOILER OUTPUT (BTUH/HR)MAX .BOILER OUTPUT (BTUH/HR)M AX.
Low Water Cut Off - Heating Only and Combi Boilers
These guidelines are supplied when necessary to install an
additional Low Water Cut Off (LWCO), for sensing a low water
level condition in a boiler, as required by the Authority Having
Jurisdiction.
Follow LWCO manufacturer installation instructions for type of
LWCO selected in addition to these instructions.
LWCO shall be 120V/60HZ and dry contacts sized for load
being connected. Wire LWCO to boiler. See Page 34, LWCO
Wiring Diagram, Key 370.
Connect LWCO device to the system ground. Ground in
accordance with the requirements of the authority having
jurisdiction or, in the absence of such requirements, with the
National Electrical Code (NEC) or Canadian Electrical Code
CEC.
• Locate LWCO sensing device in the supply
piping, above the minimum height of boiler.
See page 35, LWCO Piping Diagram.
• Position control in HORIZONTAL piping to assure
proper boiler protection (upright or 90° rotation).
• For proper operation, sensing element of the LWCO
control shall be positioned in the tee to sense the main
water stream. Maintain minimum 1/4” spacing from
pipe walls. Element shall NOT contact the rear, or side
walls of the tee. See Page 36, LWCO Detail.
• Install an air vent using a tee to avoid nuisance
shutdowns.
• Apply small amount of pipe sealant to threaded
connections.
• Arrange piping to prevent water dripping onto boiler.
• DO NOT install water shutoff valve between boiler and
LWCO sensing device.
155 Hot water tank temperature probe (field sourced)
278 Double sensor (Safety + Heating)
297 Air pressure transducer
370 Low Water Cutoff (LWCO) (field sourced)
DHW temperature sensor (see kit)
NOTICE
*IMPORTANT:
• Before connecting the room thermostat, remove
jumper on terminal block. (Key 72)
• Before connecting optional Indirect Tank Sensor,
remove two resistors, (Key 155)
• Before connecting the Low Water Cutoff, remove the
jumper on terminal block. (Key 370)
34
OPTIONAL EQUIPMENT - LOW WATER CUTOFF
Piping Diagram - LWCO Location
Note
Arrange piping to prevent water
dripping onto boiler.
Low Water Cutoff (LWCO)
Position Above Top of Boiler
To Supply
Air Vent
1
Note
Illustrations are meant to show
system piping concept only. Installer
is responsible for all equipment and
detailing required by authority having
jurisdiction.
Minimum
Acceptable Height
for LWCO Control
Safety Relief
Valve
* Check Local
Codes for Maximum
Distance to Floor.
Maximum Distance
Note
DO NOT PLACE ISOLATION VALVE
1
BEFORE LWCO.
*Pipe To
Drain
12” (304.8mm)
35
Gas Supply
Return Water
PN 240011074 REV C, [11/01/2017]
Low Water Cutoff - Detail
NO
OPTIONAL EQUIPMENT - LOW WATER CUTOFF
NO
YES
36
PN 240011074 REV C, [11/01/2017]
ADDENDUM - INSTRUCTIONS
Addendum - Instructions
Following Section Includes: Page #(s)
Domestic Hot Water Sensor Kit Instruction (240010745).........................................39-42
Instructions And Wiring Diagram For Adding External Pump (615000137)......................43-44
Sealed Combustion Kit Instructions (37711601) - For Kit #5612601....................................45
Control Board Replacement Kit Instructions (615000134)...............................................46-47
Kit installation shall be completed by qualied agency.
WARNING
!
Fire, explosion, asphyxiation and electrical shock
hazard. Improper installation could result in death or
serious injury. Read this instruction and understand
all requirements, including requirements of authority
having jurisdiction, before beginning installation.
Installation not complete until appliance operation
veried per Installation, Operation & Maintenance
Manual provided with boiler.
Sensor can be used on a standard Indirect Hot Water
tank. When it is connected to the boiler, sensor will control
Indirect Tank temperature.
Figure 1 - Slide Sensor Into well of Indirect Tank
1.
Follow instructions To TURN OFF GAS TO APPLIANCE
found on Operating Instructions label on boiler or in
Installation, Operation & Maintenance Manual. Verify all
electrical power to boiler is turned off.
WARNING
!
Electrical shock hazard. Turn OFF electrical power
supply at service panel.
2.
Remove front jacket.
WARNING
!
Burn hazard. Verify heat exchanger has cooled or use
appropriate personal protection equipment.
3.
Before inserting sensor into Indirect tank well,
thoroughly coat sensor with Thermopaste supplied with
sensor kit.
4.
Slide sensor into well until it bottoms out. See Figure
1.
5.
Secure sensor wire to well with included clip. See
Figures 1, 2 and 3.
Figure 2 - Secure Sensor Wire to Well With Clip
Figure 3 - Sensor Wire Secured to Well With Clip
6.
Route sensor wire to boiler low voltage terminal
block. Remove the two resistors on terminals 7 & 8 of
8-pin terminal strip, key #155. See Figure 4 - wiring
155Optional Indirect Tank Sensor370Field Source LWCO
*370 - Field Source LWCO
120V
60Hz
NL
1
X1
X4
44
16
X4
307
32
114
X7
81
1k
Key
16Modulating fan
32Heating circulating pump
42DHW temperature sensor (see kit)
44Gas valve
47Modulation Regulator (24V)
*72Room thermostat (eld sourced)
81Ignition/detection electrode
114Water pressure switch
*138 OptionalOutdoor Sensor (eld sourced)
*155 Optional Indirect Tank Sensor
(See parts list)
278 Double sensor (Safety + Heating)
297 Air pressure transducer
*307 CH Sysetm Pump - (if applicable)
*370 Low Water Cutoff (LWCO) - (eld sourced)
N G L1
X11
NOTICE
*Important:
• Before connecting the room thermostat, remove
jumper on terminal block. (Key 72)
• Before connecting optional Indirect Tank Sensor,
remove two resistors. (Key 155)
• Before connecting the Low Water Cutoff, remove
the jumper on terminal block. (Key 370)
40
P/N 240010745 Rev. D [08/31/2015]
DOMESTIC HOT WATER SENSOR KIT
Figure 5 - Low Voltage Terminal Strip, CHB-130
Shown
Low Voltage
Terminal Strip
Figure 6 - Low Voltage Terminal Strip Removed from
Boiler, CHB -130 Shown
Low Voltage
Terminal Strip
Removed
Temperature Deg FResistance in Ohms
3232505
6015689
7011935
7710000
1008060
1104732
1203748
1303104
Check our website frequently for updates: www.ecrinternational.com
41
P/N 240010745 Rev. D [08/31/2015]
INSTRUCTIONS AND WIRING DIAGRAM
FOR ADDING EXTERNAL PUMP TO
CHB/CCB BOILERS
(Without Factory Pump Terminals)
Installation shall be completed by qualied agency.
WARNING
!
Fire, explosion, asphyxiation and electrical shock
hazard. Improper installation could result in death or
serious injury. Read this instruction and understand
all requirements, including requirements of authority
having jurisdiction, before beginning installation.
Installation not complete until appliance operation
veried per Installation, Operation & Maintenance
Manual provided with boiler.
1.
Follow instructions to TURN OFF GAS TO APPLIANCE
found on Operation Instructions label on boiler or in
Installation, Operation & Maintenance Manual. Verify
all electrical power to boiler is turned off.
WARNING
Electric shock hazard. Turn OFF electrical power
supply at service panel.
2.
Verify all power to boiler is turned OFF at service panel.
3.
Follow Installation, Operation & Maintenance manual to
remove front jacket panel(s).
An external pump is necessary for the following conditions:
• The central heating circuit exceeds 8 ft of total head
loss.
• When using an indirect tank with a high head loss.
WARNING
!
Burn hazard. Verify heat exchanger has cooled or use
appropriate personal protection equipment.
4.
Inspect combustion chamber through sight glass. Verify
ame is not present.
5.
See wiring as shown in Figure 1.
6.
Resume operation using OPERATING INSTRUCTIONS
found on Operating Instructions label on boiler or in
Installation, Operation & Maintenance Manual.
7.
Verify proper operation by following START UP
PROCEDURE in Installation, Operation & Maintenance
Manual.
8.
Follow Installation, Operation & Maintenance manual to
install front jacket panel(s).
42
P/N 615000137, Rev. C [06/09/2015]
Figure 1 - Optional External Pump/Relay Wiring
Call for Heat
ARGO Controller
AR822-II
Ref. Key 72
Important: Before
connecting the Argo
Controller, remove
supplied jumper on
terminal block.
15VA TransformerRelay
Factory Installed Jumper
[DO NOT REMOVE]
External
Circulator Pump
Field Installed Wiring
Argo contact rating = 7 Amp Maximum
43
Sealed Combustion Termination
Kit # 5612601
Installation Instructions
Kit installation shall be completed by qualied agency.
Installation Instructions:
1.
WARNING
!
Fire, explosion, asphyxiation and electrical shock
hazard. Improper installation could result in death or
serious injury. Read this instruction and understand
all requirements, including requirements of authority
having jurisdiction, before beginning installation.
Installation not complete until appliance operation
is veried per Installation, Operation & Maintenance
Manual provided with boiler.
Horizontal (Category III) venting systems
installation shall conform to the requirements of the
authority having jurisdiction or, in the absence of
such requirements:
• National Fuel Gas Code, ANSI Z223.1/NFPA 54,
2.
3.
4.
5.
6.
and/or
• Natural Gas and Propane Installation Code, CAN/CSA
B149.1
7.
8.
Use supplied template to cut a hole through the wall.
Secure template to inside wall.
NOTICE
If installing through non-combustible wall, remove
termination thimble. Make two (2) 3½" ±1" holes on
center through the wall.
Install vent termination assembly to outside wall.
Install PVC pipe from vent termination assembly to
boiler's air inlet.
Assemble vent pipe following vent pipe manufacturer's
instructions.
Install vent pipe through termination assembly and
extend 3" beyond the assembly.
Install termination deector using four (4) provided
screws.
Install draw collar around vent pipe. Tighten nut and
screw until secured tightly.
Secure termination tee according to vent pipe
manufacturer's instructions.
Figure 1 - Sealed Combustion Termination
Termination Thimble
Termination Assembly
Termination Deector
Draw Collar
#10-24 Hex
Nut
4 Screws #10 x½ HX HD
3" Stainless Steel Vent Pipe
(Purchased Separately)
(8" X 12") Template
To Boiler
3" PVC Pipe Air Intake
(Purchased Separately)
Wall
Screw #10-24x1½" RH
3" Termination Tee (Purchased Separately)
44
P/N 37711601 Rev. A [05/2015]
CONTROL BOARD (DBM34A) KIT #FE3980B851
REPLACEMENT INSTRUCTIONS
Kit installation shall be completed by qualied agency.
WARNING
!
Fire, explosion, asphyxiation and electrical shock
hazard. Improper installation could result in
death or serious injury. Read this instruction and
understand all requirements, including requirements
of authority having jurisdiction, before beginning
installation. Installation not complete until appliance
operation veried per Installation, Operation &
Maintenance Manual provided with boiler.
1.
Follow instructions TO TURN OFF GAS TO APPLIANCE
found on Operating Instructions label on boiler or in
Installation, Operation & Maintenance Manual. Verify all
electrical power to boiler is turned off.
WARNING
!
Electrical shock hazard. Turn OFF electrical power
supply at service panel.
2.
Remove front jacket casing per instructions found in
Installation, Operation & Maintenance Manual.
Figure 1
Remove (2)
Screws
Figure 2
WARNING
!
Burn hazard. Verify heat exchanger has cooled or
use appropriate personal protection equipment.
3.
Remove (2) screws on lower part of control housing.
See Figure 1.
4.
Slide control housing forward. Control housing will fold
down on the built in hinge. See Figure 2.
5.
Remove two back cover screws.
6.
Disconnect all wiring connectors
7.
Remove two (2) screws holding board in place. Slide
board out. See Figure 3.
8.
Replace board and wiring connectors.
9.
Replace back cover.
10.
Fold control housing up. Slide control housing back into
position. Secure with screw.
11.
Remove any call for heat or hot water.
Control Housing
Hinge
Figure 3
12.
Turn gas to appliance On following procedure found
on boiler or in Installation, Operation & Maintenance
Manual.
13.
Apply power to boiler.
14.
Congure control for proper boiler size and type.
45
Remove Screws
PN 3541F682
REF #615000134, REV C [02/2016]
CONTROL BOARD REPLACEMENT INSTRUCTIONS
To access to “tS” parameter:
A. Press and hold Reset button for 10 seconds. Display
will read “tS”. Release button.
B. Press Reset button for 1 second. Display will read
“P01”.
C. Press Heating buttons to scroll parameter list. Press
DHW buttons to view or change a parameter. Set
three (3) parameters “P01”, “P02” and “P23” as
shown in Table 1 below and Figure 4.
Table - 1
tS MenuCCB -150CHB-100CH B-13 0C H B-15 0
P01Gas Type
P02Boiler Type1222
P23
External
CH Pump
Control
3333
0 = Natural Gas
1 = LP Gas
To access Conguration menu:
A. Press (DHW) + and - , hold both buttons for 10
seconds; “b01” appears and ashes.
B. Press Heating buttons to scroll Conguration list.
Press DHW buttons to view or change a setting.
C. Change only the Conguration “b01” per Table 2.
Remaining parameters are factory defaulted to the
correct value, verify value. See Table 3.
D. Select proper size, press and hold (DHW) + and -,
both buttons for 10 seconds to exit, or turn power
off then on, or wait two (2) minutes for auto exit.
15.
Replace jacket casing.
16.
Verify proper operation by following START UP
PROCEDURE in Installation, Operation & Maintenance
Manual.
Figure 4
CH
DHW
Table - 2
ParameterDescriptionSetting
b01Curve SelectionDefault = 2
b01CHB-10 00
b01CHB-13 01
b01CHB-15 02
b01C CB-15 02
Table - 3
Conguration MenuCCB-15 0CHB-13 0C H B -100C H B-15 0
b01Power Selection2102
b02
Offset max.
setpoint air signal
0000
b03Burner selection0000
b04
Offset min.
setpoint air signal
40404040
46
PN 3541F682
REF #615000134, REV C [02/2016]
CAUTION
DO NOT remove retaining clips on eld installed
water ttings. Removed ttings CANNOT be
reinstalled.
DO NOT solder on threaded joints. Heating the
tting will cause O-ring joint failure causing leaks.
DO NOT REMOVE CLIP
RIGHT SIDE CLIP - INSIDE BOILER JACKET
DO NOT REMOVE CLIP
LEFT SIDE CLIP - INSIDE BOILER JACKET
DO NOT REMOVE
RETAINING CLIPS ON
WATER FITTINGS
Control is
folded forward
and down
Boiler shown with jacket removed
PN 615000136 REV B, [02/06/2015]
See reverse page for manufacturer recommended piping method.
47
Manufacturer recommended piping method:
1.
Use piping accessories as shown in diagram below.
2.
Do any necessary soldering away from the boiler, then thread soldered assembly to Boiler
connections.
PIPING DIAGRAMS
Female Copper Fitting
Copper Pipe (6” min.
l e n g t h m a n u f a c t u r e r
recommended)
Union
Union
Copper Pipe
48
Altitude Affects on
CHB-100, CHB-130, CHB 150 and CCB-150
Above curves show affect altitude will have on boiler delivery.
Manufacturer has tested this boiler at altitude (sea level to 8,000 ft.) and determined that standard (ANSI)
derate input practices of re-oricing are not required for these models.
49
50
51
52
CHB BOILER
DHW RESISTOR HARNESS AND RELAY
KIT 550003082
For use with Argo ARM Zone Pump Control
Kit installation shall be completed by qualied agency.
!
WARNING
Fire, explosion, asphyxiation and electrical shock
hazard. Improper installation could result in
death or serious injury. Read this instruction and
understand all requirements, including requirements
of authority having jurisdiction, before beginning
installation. Installation not complete until appliance
operation veried per Installation, Operation &
Maintenance Manual provided with boiler.
1.
Follow instructions TO TURN OFF GAS TO APPLIANCE
found on Operating Instructions label on boiler or in
Installation, Operation & Maintenance Manual. Verify all
electrical power to boiler is turned off.
WARNING
!
Electrical shock hazard. Turn OFF electrical power
supply at service panel.
2.
Verify all power to boiler is turned OFF at service panel.
3.
Follow Installation, Operation & Maintenance manual to
remove front jacket panel
Kit Contents:
DescriptionQty.
DHW Resistor Harness1
Isolation Relay (24 VAC)1
Wire Nuts7
Installation Instructions1
Use this kit when the following applies:
• Use of Argo ARM Zone Control.
• Multiple ‘CH’ Zone and priority ‘DHW’ operation is
required.
• Indirect tank operation (DHW) is controlled using
mechanical thermostat.
If any of the conditions above apply:
a.Use piping diagram Figure 4 attached.
b.Priority switch on Argo Zone Control must be set to
“ON” position.
c.Must use anti-scald valve on domestic hot water
supply piping.
WARNING
!
Burn hazard. Verify heat exchanger has cooled or
use appropriate personal protection equipment.
4.
Inspect combustion chamber through sight glass. Verify
ame is not present.
5.
See wiring shown in gures 2 and 3.
PN 240011270 REV B [03/11/2016]
CHB BOILER - DHW RESISTOR HARNESS KIT
Multi-Zone Pump System with DHW Tank
Thermostat and Isolation Relay
If DHW tank thermostat is applied to multi-zoned pump
application secondary pump operation is controlled by Argo
priority switch position.
NOTICE
Important:
• Before connecting to Key72 terminals, remove
jumper on terminal block.
• Before connecting Low Water Cut-off remove
jumper on terminal block. (Key 370)
1.
Boiler thermostat contacts (KEY 72) are wired to
Argo ARM Zone Pump Control terminals (x-x). Zone
thermostats and zone pumps are also wired to Argo
Controller as shown on wiring diagram. See gure 2.
2.
Important - Remove factory installed resistors,
Terminal 7 and 8 on terminal strip (KEY 155).
3.
Attach resistor kit wire harness to terminal strip (White
wire to #7 / Red wire to #8). See gures 2 and 3.
NOTICE
FIGURE 1 - Isolation Relay
Failure to observe wire coding will result in improper
boiler operation. See wiring diagram gure 2.
4.
Attach isolation relay provided to Argo Zone Control
using an electrical knockout. Secure using conduit nut.
See gure 1.
5.
Extend brown and blue wires of wire harness to
normally closed (N.C.) contacts on isolation relay (blue
and yellow wires). Secure unused wire end of relay
contact (ORG-N.O.) using provided wire nut.
6.
Attach isolation relay coil wiring (24 VAC) to Argo
Controller. Connect White/Blue wire to Argo zone 1
(Tw) and white/yellow wire to Argo “Common”. see
gure 2. Secure unused wire end of relay coil, 120Vwhite/black using wire nut provided.
7.
Wire DHW mechanical tank thermostat to Priority Zone
(Tw/Tr) contacts on Argo Zone Control.
8.
Important: Set Argo Priority Switch to:
a. ON position - CH pumps WILL shutoff during DHW
priority.
b. Do not operate this system with the Argo Priority
Switch in OFF position.
NOTICE
If Indirect Tank pump is used connect to Priority
Zone terminals (L1/N1) on Argo Controller.
9.
Restore gas service and electrical power.
Follow lighting and operating instructions.
Restart boiler.
Verify proper operation by following START UP
Procedure found in boiler’s Installation, Operation and
Maintenance Manual.
54
PN 240011270 REV B [03/11/2016]
CHB BOILER - DHW RESISTOR HARNESS KIT
FIGURE 2 -
CHB Boiler WITH SECONDARY ZONE PUMPS and DHW THERMOSTAT
NOTE: ZONE PUMPS WILL SHUTOFF DURING DHW PRIORITY W/ PRIORITY SWITCH ON
Low Voltage
Isolation Relay
YLW
BLU
ORG
24V 120V
W/BLK
W/YLW
DHW
Thermostat
Room Thermostats
Important:
W/BLU
Priority Switch
must be ON.
See step 8.
24VAC
Transformer
Argo ARM Zone Pump Control
Zone Pumps
Power Supply
120V/60HZ
Optional: Connect indirect tank pump
to Priority Zone 1 terminals (if used).
FIGURE 3 -
CHB BOILER
KEY 72
Resistor Wire Kit Harness (DHW)
BLU
KEY 370
REMOVE
JUMPER IF
USED
W i r e N u t s
BLU
WHT
BRN
KEY
155
1.8K
RED
10K
External Supply
Pump Connection
KEY 307
POWER SUPPLY PLUG
120V/60HZ
RESISTOR WIRE
HARNESS
External
System
Supply Pump
(If used)
TERMINAL 7
KEY 155
WHITE WIRE
BRN
TO RELAY CONTACTS
(NORMALLY CLOSED)
55
TERMINAL 8
KEY 155
RED WIRE
PN 240011270 REV B [03/11/2016]
CHB BOILER - DHW RESISTOR HARNESS KIT
FIGURE 4 - CHB -Single Boiler Primary/Secondary Series Loop Zoned WITH ZONE PUMPS and Optional
Indirect Tank
* Hot
Water
19
Supply
See Pg.
Tempered
Cold
T & P
Relief
Water
Drain
Valve to
Supply
T
Indirect
Optional
DHW Tank
2
1
1 Pump (if needed)
See Figure 2 - Wiring
Optional: Priority Zone
See CHB/CCB Applications Guide located on the web at www.ecrinternational.com for
indirect tank applications using boiler’s on-board pump refer to ow rate and available
pump head curves. Refer to Boiler’s Installation, Operation and Maintenance Manual
for operational requirements. Consult indirect tank manufacturer for indirect tank
performance.
BOILER
Zone
Pump
Supply
Cold Water
- DHW Thermostat
T
12” (305mm) Maximum
Separation
Limit combined supply and return pipe
lengths to maximum total linear length of
20 ft. (6.1 m) between boiler and closely
spaced tees, when minimum 1” NPT
1
2
pipe size is used. Linear length may be
increased if supply and return pipe size is
increased to limit pressure drop
* Manufacturer requires all domestic hot water (DHW)
installations use an anti-scald valve. Local codes may
Kit installation shall be completed by qualied agency.
WARNING
!
Fire, explosion, asphyxiation and electrical shock
hazard. Improper installation could result in death or
serious injury. Read these instructions and understand
all requirements, including requirements of authority
having jurisdiction, before beginning installation.
Installation not complete until appliance operation
is veried per Installation, Operation & Maintenance
Manual provided with boiler.
!
CAUTION
Laceration, burn hazard. Metal edges and parts may
have sharp edges and/or may be hot. Use appropriate
personal protection equipment to include safety
glasses and gloves when installing or servicing this
appliance. Failure to follow these instructions could
result in minor or moderate injury.
9.
Install new outer combustion cover in place. Take care to
ensure left and right sides are tucked behind the vertical rails.
Secure with 4 screws.
10.
Turn Gas and Electric to boiler on.
11.
Resume operation using OPERATING INSTRUCTIONS
found on Operating Instructions label on boiler or in
Installation, Operation & Maintenance Manual.
12.
Install front panel. Secure in place with removed screws.
13.
Verify proper operation.
Figure 1 - Heat Exchanger Covers
Combustion Cover Replacement
1.
Follow instructions To TURN OFF GAS TO APPLIANCE found
on Operating Instructions label on boiler or in Installation,
Operation & Maintenance Manual. Verify all electrical power to
boiler is turned off.
WARNING
!
Electrical shock hazard. Turn OFF electrical power
supply at service panel.
2.
Verify all power to boiler is turned OFF at service panel.
3.
Follow Installation, Operation & Maintenance manual to remove
front jacket panel.
WARNING
!
Burn hazard. Verify unit has cooled before servicing. Use
appropriate personal protection equipment.
4.
Inspect combustion chamber through sight glass. Verify ame
is not present.
5.
Verify unit has cooled before servicing.
6.
Remove (4) four screws from external heat exchanger cover.
See Figure 1. Lift cover up from bottom and pull forward.
7.
Remove (4) four screws holding inner combustion cover with
insulation.
8.
Install new inner combustion cover and insulation in place.
Secure with 4 screws.
Front
Jacket
Sight
Glass
Illustrations are a depiction of the boiler for general location of parts and are
subject to change without notice.
Outer
Combustion
Chamber Cover
Inner
Combustion
Chamber Cover
P/N 240011995 Rev. A [11/03/2017]
NOTES
58
NOTES
59
ECR International Inc. 2201 Dwyer Avenue, Utica, NY 13501
Tel. 800 253 7900
www.ecrinternational.com
All specifications subject to change without notice.