Lochinvar EcoShield SHW116-410CE, Installation, Commissioning & Maintenance Instructions

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11.0 AIR SUPPLY
The following information is based on single water heater installations only. If more than one water heater is being used, BS6644 should be
consulted to calculate the necessary requirements.
11.1 COMBUSTION VENTILATION
When used as a Type C appliance, provided sufficient clearance is provided, ventilation for combustion is not necessary as the combustion air
is ducted directly from outside.
When used as a Type B appliance, the combustion air requirements are as follows:
Model
Gross
Input
(kW)
Net
Input
(kW)
Ventilation
(Room)
(cm
2
)
Compartment Compartment
(Direct to Outside) (To Internal Space)
High
(cm
2
)
Low
(cm
2
)
High
(cm
2
)
Low
(cm
2
)
SHW35-245CE 36.6 33.3 132 166 332 332 664
SHW46-325CE 43.9 39.6 165 200 400 400 800
SHW61-325CE 58.6 52.8 230 265 530 530 1060
COMBUSTION VENTILATION REQUIREMENTS SHW35-245CE – SHW61-325CE
Model
Gross
Input
(kW)
Net
Input
(kW)
Plant Room Enclosure
Low
Summer Use
Medium
Summer Use
High
Summer Use
Low
Summer Use
Medium
Summer Use
High
Summer Use
High
(cm
2
)
Low
(cm
2
)
High
(cm
2
)
Low
(cm
2
)
High
(cm
2
)
Low
(cm
2
)
High
(cm
2
)
Low
(cm
2
)
High
(cm
2
)
Low
(cm
2
)
High
(cm
2
)
Low
(cm
2
)
SHW86-410CE 83.5 75.3 152 304 228 380 304 456 380 760 456 836 532 912
SHW116-410CE 117.2 105.6 212 424 318 530 424 636 530 1060 636 1166 742 1272
SHW146-410CE 146.5 132.0 264 528 396 660 528 792 660 1320 792 1452 924 1584
COMBUSTION VENTILATION REQUIREMENTS SHW86-410CE – SHW146-410CE
11.2 COOLING VENTILATION
When used as a type C appliance, cooling ventilation should be provided as follows:
Model
Input
(Gross)
kW
Input
(Net)
kW
Enclosure/Compartment Enclosure/Compartment
Internal Space/Boiler Room
(Direct to Outside) (To Internal Space)
High
(cm
2
)
Low
(cm
2
)
High
(cm
2
)
Low
(cm
2
)
High
(cm
2
)
Low
(cm
2
)
SHW35-245CE 36.6 33.2 166 166 332 332 N/A N/A
SHW46-325CE 43.9 39.6 200 200 400 400 N/A N/A
SHW61-325CE 58.6 52.8 265 265 530 530 N/A N/A
SHW86-410CE 83.5 75.3 380 380 760 760 152 152
SHW116-410CE 117.2 105.6 530 530 1060 1060 212 212
SHW146-410CE 146.5 132.0 660 660 1320 1320 264 264
COOLING VENTILATION REQUIREMENTS
When used as a type B appliance, provision for cooling ventilation is included in the combustion ventilation allowance.