Type C; (Twin Pipe Flue); Common Flue Systems - Lochinvar CP-M Series Installation, Commissioning & Maintenance Instructions

FIGURE 8.4
8.7.4

TYPE C

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This appliance can operate on a U-Duct common flue system. The maximum lengths for the interconnecting flue can be
calculated using the information in Section 8.5: MAXIMUM LENGTH – CONVENTIONAL/TWIN-PIPE FLUE
Concrete components of the U-Duct must meet the requirements of BS EN 1858
Flue Gas Mass Rate (G20) 100%
Flue Gas Mass Rate (G20) 25%
Flue Gas Mass Rate (G31) 100%
Flue Gas Mass Rate (G31) 25%
8.7.5 TYPE C
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When installing the heater as a Type C
opposite sides of the building.
The details of how to convert the appliance for twin pipe flued operation are contained within the conversion kit.
To install a horizontal Type C
Type C terminal or air inlet, the procedure for a Type C
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8.8 COMMON FLUE SYSTEMS

The CP-M+ boiler can be installed on to a common flue system if required. The common flue system should be sized to operate
under a negative pressure of -0.03 to -0.10 mbar.
VERTICAL TERMINAL ROOF FLASHINGS FOR SYNTHETIC, FLAT AND TILED ROOFS
FIGURE 8.5 INSTALLING TERMINAL THROUGH ROOF FLASHING
(g/sec)
(g/sec)
(g/sec)
(g/sec)
TABLE 8.11

(TWIN PIPE FLUE)

appliance, it should be noted that the terminals must not be installed on
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terminal or air inlet the procedure for a Type C
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CP-M+60 CP-M+80 CP-M+100 CP-M+120 CP-M+150 CP-M+180
22.6 29.8 37.1
5.7 7.5 9.3
23.2 30.6 38.8
5.8 7.7 9.7
FLUE GAS MASS RATES
13
terminal should be followed.
33
45.1 55.6
11.3 13.9
46.2 57.0
11.6 14.3
terminal should be followed. To install a vertical
67.3
16.8
69.0
17.3
30