Lochinvar CP-M Series Guide

1
The CP-M+™ range
High Efficiency Gas Fired Condensing Boilers
Installation, Commissioning & Maintenance
Instructions
Models:
CP-M+60
CP-M+80
CP-M+100
CP-M+120
CP-M+150
CP-M+180
INS0034 Issue No 5 | November 2013

2
Table of Contents
1.0 INTRODUCTION ..................................................................................................................................................................................................................... 4
2.0 PRINCIPAL PARTS ................................................................................................................................................................................................................ 5
3.0 TECHNICAL DATA...............................................................................................................................................................................................................17
4.0 GENERAL REQUIREMENTS...............................................................................................................................................................................................20
4.1 RELATED DOCUMENTS..................................................................................................................................................................................................20
5.0 WATER QUALITY................................................................................................................................................................................................................. 21
5.1 WATER CHEMISTRY........................................................................................................................................................................................................21
5.2 AIR/DIRT SEPARATION ...................................................................................................................................................................................................21
5.3 WATER PRESSURE.........................................................................................................................................................................................................21
6.0 LOCATION ............................................................................................................................................................................................................................22
6.1 PLANT ROOM REQUIREMENTS..................................................................................................................................................................................... 22
6.2 GENERAL REQUIREMENTS ...........................................................................................................................................................................................22
6.3 CLEARANCES ..................................................................................................................................................................................................................22
6.4 MOUNTING THE BOILER................................................................................................................................................................................................. 22
6.4.1 MOUNTING THE BOILER ON A FRAME..................................................................................................................................................................... 22
6.4.2 MOUNTING THE BOILER ON THE WALL................................................................................................................................................................... 22
6.5 CONDENSATE DRAIN......................................................................................................................................................................................................23
6.6 FILLING THE CONDENSATE TRAP ................................................................................................................................................................................ 23
7.0 GAS SUPPLY........................................................................................................................................................................................................................23
7.1 SERVICE PIPES ...............................................................................................................................................................................................................23
7.2 METERS............................................................................................................................................................................................................................ 24
7.3 GAS SUPPLY PIPES ........................................................................................................................................................................................................24
7.4 BOOSTED GAS SUPPLIES.............................................................................................................................................................................................. 24
7.5 PLANT-ROOM CONTROL VALVE ...................................................................................................................................................................................24
7.6 EQUIPMENT GAS SYSTEM LEAK CHECK.....................................................................................................................................................................24
8.0 FLUE SYSTEM...................................................................................................................................................................................................................... 24
8.1 FLUE TERMINAL LOCATIONS ........................................................................................................................................................................................24
8.2 APPROVED FLUE SYSTEM.............................................................................................................................................................................................25
8.2.1 TYPE B23P FLUE GAS SYSTEMS.................................................................................................................................................................................25
8.3 INSTALLATION PRECAUTIONS......................................................................................................................................................................................26
8.4 MAXIMUM LENGTH –CONCENTRIC FLUE ...................................................................................................................................................................26
8.4.1 WORKED EXAMPLE –CONCENTRIC FLUE.............................................................................................................................................................. 26
8.5 MAXIMUM LENGTH –CONVENTIONAL/TWIN-PIPE FLUE...........................................................................................................................................26
8.5.1 WORKED EXAMPLE –CONVENTIONAL FLUE ......................................................................................................................................................... 27
8.5.2 WORKED EXAMPLE –TWIN-PIPE FLUE ................................................................................................................................................................... 28
8.6 FLUE DISCHARGE ...........................................................................................................................................................................................................28
8.7 FLUE TERMINAL INSTALLATION....................................................................................................................................................................................28
8.7.1 TYPE B23 (CONVENTIONAL FLUE) .............................................................................................................................................................................28
8.7.2 TYPE C13 (HORIZONTAL BALANCED FLUE)..............................................................................................................................................................29
8.7.3 TYPE C33 (VERTICAL BALANCED FLUE) ...................................................................................................................................................................29
8.7.4 TYPE C43........................................................................................................................................................................................................................30
8.7.5 TYPE C53 (TWIN PIPE FLUE) .......................................................................................................................................................................................30
8.8 COMMON FLUE SYSTEMS .............................................................................................................................................................................................30
8.9 FLUE TERMINAL GUARDING..........................................................................................................................................................................................31
8.10 CONDENSATE DRAIN......................................................................................................................................................................................................31
9.0 AIR SUPPLY ......................................................................................................................................................................................................................... 31
9.1 COMBUSTION VENTILATION..........................................................................................................................................................................................31
9.2 COOLING VENTILATION .................................................................................................................................................................................................32
9.3 MECHANICAL VENTILATION ..........................................................................................................................................................................................32
9.3.1 WORKED EXAMPLE –MECHANICAL INLET/NATURAL DISCHARGE..................................................................................................................... 32
9.3.2 WORKED EXAMPLE –MECHANICAL INLET/MECHANICAL DISCHARGE (MINIMUM COMBUSTION AIR FLOW RATE)..................................33
9.3.3 WORKED EXAMPLE –MECHANICAL INLET/MECHANICAL DISCHARGE (ALTERNATE COMBUSTION AIR FLOW RATE):............................33
10.0 WATER CONNECTIONS...................................................................................................................................................................................................... 33
10.1 FLOW/RETURN CONNECTIONS.....................................................................................................................................................................................33
10.2 OPEN VENTED SYSTEM ARRANGEMENT....................................................................................................................................................................33
10.3 SEALED SYSTEM ARRANGEMENT ...............................................................................................................................................................................34
10.3.1 EXPANSION VESSEL SIZING...................................................................................................................................................................................... 34
10.4 CIRCULATING PUMPS.....................................................................................................................................................................................................34
10.5 DIRT SEPARATOR/STRAINER........................................................................................................................................................................................38
10.6 AIR SEPARATOR.............................................................................................................................................................................................................. 38
10.7 ROOF-TOP INSTALLATION............................................................................................................................................................................................. 38
10.8 INSTALLATION SCHEMATIC DRAWINGS......................................................................................................................................................................38
11.0 ELECTRICAL SUPPLY ........................................................................................................................................................................................................41
11.1 CONNECTOR STRIP........................................................................................................................................................................................................ 41
11.2 ARC WELDING PRECAUTIONS ......................................................................................................................................................................................43
11.3 ANCILLARY EQUIPMENT ................................................................................................................................................................................................43
11.3.1 OUTSIDE TEMPERATURE SENSOR..........................................................................................................................................................................43
11.3.2 SAFETY CIRCUIT .........................................................................................................................................................................................................43
11.4 CASCADE CONTROL.......................................................................................................................................................................................................43
11.4.1 CASCADE WIRING.......................................................................................................................................................................................................43
11.4.2 CASCADE SENSOR .....................................................................................................................................................................................................43
11.5 TIME, TEMPERATURE AND ZONE CONTROL ..............................................................................................................................................................43
11.6 CP-M+ WIRING DIAGRAM ...............................................................................................................................................................................................44

3
12.0 CONTROL INTERFACE .......................................................................................................................................................................................................45
12.1 CONTROL PANEL / DISPLAY UNIT ................................................................................................................................................................................45
12.2 CONTROL PANEL MENU STRUCTURE .........................................................................................................................................................................46
12.3 DISPLAY DURING OPERATION...................................................................................................................................................................................... 47
12.4 MONITOR SCREENS ....................................................................................................................................................................................................... 48
12.5 SERVICE FUNCTION ....................................................................................................................................................................................................... 50
12.6 SCHORNSTEINFEGER FUNCTION ................................................................................................................................................................................51
12.7 SETTING THE TIME & DATE ...........................................................................................................................................................................................52
12.8 SETPOINTS.......................................................................................................................................................................................................................53
12.9 SETTING THE TIMER PROGRAMS ................................................................................................................................................................................54
12.10 OUTSIDE TEMPERATURE COMPENSATION................................................................................................................................................................57
12.10.1 MAIN PARAMETERS FOR SETTING THE COMPENSATED HEATING CURVE ......................................................................................................57
12.10.1 ADDITIONAL PARAMETERS FOR SETTING THE COMPENSATED HEATING CURVE .........................................................................................58
12.10.2 SETTING OUTSIDE TEMPERATURE COMPENSATION...........................................................................................................................................59
12.11 CHECKING THE OPERATING HISTORY........................................................................................................................................................................ 60
12.12 CHECKING THE FAULT HISTORY..................................................................................................................................................................................61
12.13 SETTING THE MAINTENANCE SPECIFICATIONS ........................................................................................................................................................62
12.14 SETTING THE USER LOCK.............................................................................................................................................................................................65
13.0 PARAMETERS......................................................................................................................................................................................................................66
13.1 SETTING THE PARAMETERS WITH THE DISPLAY MENU .......................................................................................................................................... 66
14.0 COMMISSIONING AND TESTING ....................................................................................................................................................................................... 72
14.1 ELECTRICAL INSTALLATION.......................................................................................................................................................................................... 72
14.2 GAS INSTALLATION.........................................................................................................................................................................................................72
14.3 WATER CONNECTIONS ..................................................................................................................................................................................................72
14.4 COMMISSIONING THE EQUIPMENT.............................................................................................................................................................................. 72
14.4.1 GENERAL CHECKS PRIOR TO LIGHTING.................................................................................................................................................................72
14.4.2 EQUIPMENT CHECKS PRIOR TO LIGHTING ............................................................................................................................................................72
14.4.3 PROCEDURE FOR INITIAL LIGHTING........................................................................................................................................................................ 73
14.4.4 GAS PRESSURE ADJUSTMENT AND COMBUSTION CHECKS ..............................................................................................................................73
14.5 TEMPERATURE ADJUSTMENT PROCEDURE..............................................................................................................................................................74
14.6 INSTALLATION NOISE.....................................................................................................................................................................................................74
15.0 LPG FUEL .............................................................................................................................................................................................................................75
15.1 RELATED DOCUMENTS..................................................................................................................................................................................................75
15.2 CONVERSION AND COMMISSIONING PROCEDURE ..................................................................................................................................................75
16.0 MAINTENANCE ....................................................................................................................................................................................................................77
16.1 GENERAL..........................................................................................................................................................................................................................77
16.2 BURNER INSPECTION.....................................................................................................................................................................................................77
16.3 BURNER REMOVAL.........................................................................................................................................................................................................78
16.4 CLEANING THE HEAT EXCHANGER .............................................................................................................................................................................79
16.5 DRAINING THE BOILER SYSTEM................................................................................................................................................................................... 79
16.5.1 DRAINING AN INDIVIDUAL BOILER ...........................................................................................................................................................................79
16.5.2 DRAINING THE COMPLETE SYSTEM........................................................................................................................................................................79
16.6 REFILLING THE SYSTEM................................................................................................................................................................................................79
16.7 OTHER CHECKS ..............................................................................................................................................................................................................80
16.7.1 RELIEF VALVES (IF FITTED).......................................................................................................................................................................................80
16.7.2 FLUE SYSTEM.............................................................................................................................................................................................................. 80
16.8 SETTING A REPLACEMENT GAS VALVE ......................................................................................................................................................................81
17.0 TROUBLESHOOTING..........................................................................................................................................................................................................83
17.1 LOCK-OUT CODES ..........................................................................................................................................................................................................83
17.2 BLOCKING CODES ..........................................................................................................................................................................................................88
17.3 IMPORTANT MESSAGES ................................................................................................................................................................................................91
18.0 USER INSTRUCTIONS......................................................................................................................................................................................................... 91

4
1.0 INTRODUCTION
The Lochinvar CP-M+™range is a wall hung gas-fired condensing boiler. The equipment comprises of stainless steel
radial burner assembly and heat exchanger that permits fully condensing operation.
The burner is initiated by a full electronic ignition sequence control that incorporates a spark ignition and a flame
rectification device for supervision of the flame.
The output from the boiler is regulated by a variable speed combustion fan and gas/air ratio controls to maintain the correct
combustion at all levels of modulation. This configuration allows modulation down to 25% of the rated output.
This equipment is intended for use on Group H Natural Gas (2nd Family) and LPG propane (3rd Family). The information
relating to propane firing is to be found in Section 15: LPG FUEL. This equipment MUST NOT use gas other than that for
which it has been designed and adjusted.
This equipment must be installed by a competent person, registered with a H.S.E. approved body. All installations must
conform to the relevant Gas Safety and Building Regulations. Health & Safety requirements must also be taken into
account when installing any equipment. Failure to comply with the above may lead to prosecution.
If the equipment is to be connected to an unvented (pressurised) system, care must be taken to ensure all extra safety
requirements are satisfied should a high or low-pressure condition occur in the system.
The equipment is designed for direct connection to a flue system.
Ancillary Options:
Item Description Part Number
1 Boiler Mounting Frame E00-000-158
2 Boiler Mounting Frame E00-000-159
3 Boiler Mounting Frame E00-000-160
4 Boiler Mounting Frame E00-000-116
2 Boiler Gas/Flow/Return Manifolds CP-M+60 –CP-M+120 (R 1 ½”) E00-000-152
3 Boiler Gas/Flow/Return Manifolds CP-M+60 –CP-M+120 (DN65) E00-000-186
4 Boiler Gas/Flow/Return Manifolds CP-M+60 –CP-M+120 (DN80) E00-000-154
2 Boiler Gas/Flow/Return Manifolds CP-M+150 –CP-M+180 (DN65) E00-000-155
3 Boiler Gas/Flow/Return Manifolds CP-M+150 –CP-M+180 (DN80) E00-000-156
4 Boiler Gas/Flow/Return Manifolds CP-M+150 –CP-M+180 (DN100) E00-000-157
Interconnecting Pipework:
CP-M+60 –CP-M+120 E00-000-162
CP-M+150 –CP-M+180 E00-000-163
Low Velocity Header:
(R 1 ½”) E00-000-164
(DN65) E00-000-165
(DN80) E00-000-166
(DN100) E00-000-167
Calorifier Temperature Sensor E04-016-303
Cascade Flow Sensor (Required for cascade installations) E04-016-304
Outside Temperature Sensor E04-016-585
Pressurisation Unit
Floor standing –single pump LPU9000
Floor standing –twin pump LPU9001
Wall mounted –single pump CHCWM1
Wall mounted –twin pump CHCWM2
Condensate Neutralisation Kit KIT2000
Time, Temperature and Zone Control Refer to Section 11: ELECTRICAL SUPPLY
Flue System Components Contact Lochinvar Limited

5
2.0 PRINCIPAL PARTS
FIGURE 2.1 REMOVABLE COMPONENTS –CP-M+60

6
FIGURE 2.2 REMOVABLE COMPONENTS –CP-M+60 (CONTINUED)

7
Item
Description
Item
Description
1
L/H side panel with insulation
29
Flow pipe
2
Front panel with insulation
30
Pump
3
Ignition cable
31
Pump gasket 1½"
4
Ignition electrode with gasket and screws
32
Return pipe –part 1
5
Heat exchanger rear wall insulation
33
Heat exchanger connection pipe gasket
6
Burner door gasket
34
Heat exchanger connection pipe
7
Burner door insulation
35
Heat exchanger connection pipe retaining clip
8
Burner door
36
Heat exchanger connection pipe O-ring
9
Burner door retaining nut
37
Flow / return temperature sensor
10
Burner
38
Return pipe –part 2
11
Burner / gas-air mixing pipe gasket
39
High limit thermostat
12
Gas-air mixing pipe retaining screws
40
Automatic air vent
13
Gas-air mixing pipe
41
Condensate drain hose –air supply duct
14
Combustion fan / gas-air mixing pipe gasket
42
Wall bracket
15
Combustion fan
43
Flue gas outlet pipe / flue spigot gasket
16
Gas-air mixing box
44
Flue gas outlet pipe
17
Gas valve outlet pipe
45
Heat exchanger / flue gas outlet pipe gasket
18
Gas valve inlet pipe
46
Flue gas temperature sensor
19
Gas inlet connector
47
Condensate drain hose –heat exchanger
20
Gas valve
48
Air pressure switch
21
Replacement fuses
49
Air pressure switch hose
22
Boiler control PCB
50
R/H side panel with insulation
23
Display PCB
51
Condensate water trap
24
PC connection cover
52
Condensate water trap drain hose
25
Terminal strip cover
53
N/A
26
Heat exchanger
54
Cable gland
27
Pressure sensor
55
Rubber grommet
28
Pressure sensor gasket
TABLE 2.1 REMOVABLE COMPONENTS –CP-M+60

8
FIGURE 2.3 REMOVABLE COMPONENTS –CP-M+80 –CP-M+100

9
FIGURE 2.4 REMOVABLE COMPONENTS –CP-M+80 –CP-M+100 (CONTINUED)

10
Item
Description
Item
Description
1
L/H side panel with insulation
27
Pressure sensor
2
Front panel with insulation
28
Pressure sensor gasket
3
Ignition cable
29
Pump gasket 1½"
4
Ignition electrode with gasket and screws
30
Flow pipe –part 2
5
Heat exchanger rear wall insulation
31
Pump
6
Burner door gasket
32
Heat exchanger connection pipe retaining clip
7
Burner door insulation
33
Heat exchanger connection pipe
8
Burner door
34
Heat exchanger connection pipe O-ring
9
Burner door retaining nut
35
High limit thermostat
10
Burner
36
Flow / return temperature sensor
11
Burner / gas-air mixing pipe gasket
37
Flue gas temperature sensor
12
Gas-air mixing pipe retaining screws
38
Heat exchanger outlet / flue spigot gasket
13
Gas-air mixing pipe
39
Automatic air vent
14
Combustion fan / gas-air mixing pipe gasket
40
Condensate drain hose –air supply duct
15
Combustion fan
41
Wall bracket
16
Gas-air mixing box
42
Heat exchanger rear wall thermostat
17
Gas valve connection O-ring
43
Air pressure switch
18
Gas valve
44
Condensate drain hose –heat exchanger
19
Replacement fuses
45
Air pressure switch hose
20
Boiler control PCB
46
Condensate water trap
21
Display PCB
47
R/H side panel with insulation
22
PC connection cover
48
Condensate water trap drain hose
23
Terminal strip cover
49
N/A
24
Heat exchanger
50
Cable gland
25
Return pipe –part 2
51
Rubber grommet
26
Flow pipe –part 3
TABLE 2.2 REMOVABLE COMPONENTS –CP-M+80 –CP-M+100

11
FIGURE 2.5 REMOVABLE COMPONENTS –CP-M+120

12
FIGURE 2.6 REMOVABLE COMPONENTS –CP-M+120 (CONTINUED)

13
Item
Description
Item
Description
1
L/H side panel with insulation
28
Flow pipe –part 3
2
Front panel with insulation
29
Pressure sensor
3
Ignition cable
30
Pressure sensor gasket
4
Ignition electrode with gasket and screws
31
Pump gasket 1½"
5
Heat exchanger rear wall insulation
32
Flow pipe –part 2
6
Burner door gasket
33
Pump
7
Burner door insulation
34
Heat exchanger connection pipe retaining clip
8
Burner door
35
Heat exchanger connection pipe
9
Burner door retaining nut
36
Heat exchanger connection pipe O-ring
10
Burner
37
High limit thermostat
11
Burner / gas-air mixing pipe gasket
38
Flow / return temperature sensor
12
Gas-air mixing pipe retaining screws
39
Flue gas temperature sensor
13
Gas-air mixing pipe
40
Heat exchanger outlet / flue spigot gasket
14
Combustion fan / gas-air mixing pipe gasket
41
Automatic air vent
15
Combustion fan
42
Condensate drain hose –air supply duct
16
Gas-air mixing box
43
Wall bracket
17
N/A
44
Heat exchanger rear wall thermostat
18
Gas inlet / outlet manifold gasket
45
Air pressure switch
19
Gas valve
46
Condensate drain hose –heat exchanger
20
Gas valve connection O-ring
47
Air pressure switch hose
21
Replacement fuses
48
Condensate water trap
22
Boiler control PCB
49
R/H side panel with insulation
23
Display PCB
50
Condensate water trap drain hose
24
PC connection cover
51
N/A
25
Terminal strip cover
52
Cable gland
26
Heat exchanger
53
Rubber grommet
27
Return pipe –part 2
TABLE 2.3 REMOVABLE COMPONENTS –CP-M+120

14
FIGURE 2.7 REMOVABLE COMPONENTS –CP-M+150 –CP-M+180

15
FIGURE 2.8 REMOVABLE COMPONENTS –CP-M+150 –CP-M+180 (CONTINUED)

16
Item
Description
Item
Description
1
L/H side panel with insulation
27
Flow pipe –part 3
2
Front panel with insulation
28
Pressure sensor gasket
3
Ignition cable
29
Pressure sensor
4
Ignition electrode with gasket and screws
30
Pump gasket 2"
5
Heat exchanger rear wall insulation
31
Flow pipe –part 2
6
Burner door gasket
32
Heat exchanger connection pipe retaining clip
7
Burner door insulation
33
Heat exchanger connection pipe
8
Burner door
34
Heat exchanger connection pipe O-ring
9
Burner door retaining nut
35
Pump
10
Burner
36
High limit thermostat
11
Burner / gas-air mixing pipe gasket
37
Flow / return temperature sensor
12
Gas-air mixing pipe retaining screws
38
Flue gas temperature sensor
13
Gas-air mixing pipe
39
Heat exchanger outlet / flue spigot gasket
14
Combustion fan / gas-air mixing pipe gasket
40
Automatic air vent
15
Combustion fan
41
Condensate drain hose –air supply duct
16
Gas-air mixing box
42
Wall bracket
17
Gas inlet manifold gasket
43
Heat exchanger rear wall thermostat
18
Gas valve
44
Air pressure switch
19
Gas valve outlet connection O-ring
45
Condensate drain hose –heat exchanger
20
Replacement fuses
46
Air pressure switch hose
21
Boiler control PCB
47
Condensate water trap
22
Display PCB
48
R/H side panel with insulation
23
PC connection cover
49
Condensate water trap drain hose
24
Terminal strip cover
50
N/A
25
Heat exchanger
51
Cable gland
26
Return pipe –part 2
52
Rubber grommet
TABLE 2.4 REMOVABLE COMPONENTS –CP-M+150 –CP-M+180
A replacement parts list is available to download from Lochinvar’s website; please visit www.lochinvar.ltd.uk

17
3.0 TECHNICAL DATA
TABLE 3.1 TECHNICAL DATA
Model Number
CP-M+60
CP-M+80
CP-M+100
CP-M+120
CP-M+150
CP-M+180
GENERAL DATA
Input –G20 –(gross) –kW
61.8
82.5
102.0
123.0
153.0
184.0
Input –G31 –(gross) –kW
60.4
80.8
100.0
121.0
150.0
180.0
Input (net) –kW
55.6
74.3
92.2
111.0
138.0
166.0
Output –kW (50º/30º)
57.4
77.5
96.2
116.0
144.0
175.0
Output –kW (80º/60º)
53.5
71.2
88.4
106.0
132.0
160.0
Seasonal Efficiency –%
94.9
95.1
95.1
95.2
95.2
95.2
Shipping Weight –kg
46
73
78
83
92
101
NOXClass
5
GAS DATA –G20
Nominal gas inlet pressure –mbar
20.0
Maximum gas inlet pressure –mbar
25.0
Minimum gas inlet pressure –mbar
17.5
Gas flow rate –m3/hr
5.88
7.86
9.76
11.75
14.60
17.57
Flue gas mass rate –g/sec
(@ 9.0% CO2)
22.6
29.8
37.1
45.1
55.6
67.3
Gas inlet connection size –“ BSP
¾
1
GAS DATA –G31
Nominal gas inlet pressure –mbar
37.0
Maximum gas inlet pressure –mbar
45.0
Minimum gas inlet pressure –mbar
25.0
Gas flow rate –m3/hr
2.27
3.04
3.77
4.54
5.65
6.79
Flue gas mass rate –g/sec
(@ 10.0% CO2)
23.2
30.6
38.8
46.2
57.0
69.0
Gas inlet connection size –“ BSP
¾
1
WATER DATA
Water content –litres
3.9
5.0
6.5
8.3
10.4
12.9
Water connections (F & R) –“ BSP
1 ¼
1 ½
Max. water pressure (PMS) –bar
4.0
Min. water pressure –bar
1.0
Test pressure –bar
9.0
Maximum water temperature –C
85
FLUE DATA TYPE B23
Nominal flue diameter –mm
80
100
130
Maximum flue gas temp. –C
120
Flue gas temperature –C
85 –95
Flue draught requirements –mbar
-0.03 to -0.1
FLUE DATA TYPE C13 & C33
Nominal flue diameter –mm
80/125
100/150
Maximum flue gas temp. –C
120
FLUE DATA TYPE C43 & C53
Nominal flue diameter –mm
80
100
130
Average flue gas temp. –C
(80/60 Flow/Return)
80
Maximum flue gas temp. –C
120

18
Connections
Twin pipe
Concentric
CP-M+
80
CP-M+
100
CP-M+
120
CP-M+
60
CP-M+
80
CP-M+
100
CP-M+
120
AI
Air Inlet
Ø80
Ø100
Ø100
Ø125
Ø125
Ø150
Ø150
FG
Flue Gas
Ø80
Ø100
Ø100
Ø80
Ø80
Ø100
Ø100
F
Flow
R 1 ¼” (male)
C
Condensate
Flexible hose Ø 25/21 x 750 mm
R
Return
R 1 ¼” (male)
G
Gas
R ¾” (male)
Dimension ‘A’
112
112
112
155
112
112
112
Dimension ‘B’
135
135
135
150
135
135
135
FIGURE 3.1 DIMENSIONS CP-M+60, 80, 100 & 120

19
Connections
Twin pipe
Concentric
CP-M+
150
CP-M+
180
CP-M+
150
CP-M+
180
AI
Air Inlet
Ø130
Ø130
Ø150
Ø150
FG
Flue Gas
Ø130
Ø130
Ø100
Ø100
F
Flow
R 1 ½” (male)
C
Condensate
Flexible hose Ø 25/21 x 750 mm
R
Return
R 1 ½” (male)
G
Gas
R 1” (male)
FIGURE 3.2 DIMENSIONS CP-M+150 & 180

20
4.0 GENERAL REQUIREMENTS
The Lochinvar CP-M+™ condensing boiler has been designed to operate trouble free for many years. These instructions should
be followed closely to obtain the maximum usage and efficiency of the equipment. PLEASE read the instructions fully before
installing or using the appliance.
4.1 RELATED DOCUMENTS
It is law that all gas appliances are installed by competent persons, in accordance with The Gas Safety (Installation and Use)
Regulations 1998. Failure to install appliances correctly could lead to prosecution. It is in your own interest, and that of safety, to
ensure that this law is complied with.
The installation of the equipment MUST be in accordance with the relevant requirements of the Gas Safety Regulations, Building
Regulations, I.E.E. Regulations and the bylaws of the local water undertaking. The installation should also be in accordance with
any relevant requirements of the local gas distributor and local authority.
In addition the installation should follow the relevant guidance offered in the following documents. It is not practical to list all
relevant information but emphasis is placed on the following documents, as failure to comply with the guidance given will almost
certainly result in an unsatisfactory installation:
BS EN 1858: 2003 Chimneys. Components. Concrete flue blocks
BS 4814: 1990 Specification for expansion vessels using an internal diaphragm, for sealed hot water heating
systems
BS 5440-1: 2008 Installation and maintenance of flues and ventilation for gas appliances of rated input not exceeding
70kW net (1st, 2nd and 3rd family gases)
Part 1: Specification for installation and maintenance of flues
BS 5440-2: 2009 Installation and maintenance of flues and ventilation for gas appliances of rated input not exceeding
70kW net (1st, 2nd and 3rd family gases)
Part 2: Specification for installation and maintenance of ventilation for gas appliances
BS 6644: 2011 Specification for the installation and maintenance of gas-fired hot water boilers of rated inputs
between 70kW (net) and 1.8MW (net) (2nd and 3rd family gasses)
BS 6700: 2006 Design, installation, testing and maintenance of services supplying water for domestic use within
buildings and their curtilages
BS 6880: 1988 Code of practice for low temperature hot water systems of output greater than 45kW
Parts 1, 2 and 3
BS 7074: 1989 Application, selection and installation of expansion vessels and ancillary equipment for sealed
Parts 1and 2 systems
BS 7671: 2008 Requirements for electrical installations, I.E.E. wiring regulations seventeenth edition
CP 342: Code of practice for centralised hot water supply-buildings other than dwellings
Part 2 1974
IGE/UP/1: Installation pipework on industrial and commercial premises
Edition 2
IGE/UP/2: Gas installation pipework, boosters and compressors on industrial and commercial
Edition 2 premises
IGE/UP/4: Commissioning of gas fired plant on industrial and commercial premises
Edition 2