Temperature Limit In The Room Or Container On Start-Up; Temperature Limit In The Room Or Container On Operation - Kohler SFGLD480 Operation & Maintenance Manual

1. INTRODUCTION
This product information document is applicable to all gas engines installed in covered facilities and not
outdoors. This document is designed to limit the minimum engine air inlet temperature, whether it is installed in
a room or a container, to avoid condensation inside the same.
This document is aimed at all gas, natural gas, syngas, landfill, digester, propane and low methane number gas
engines.
This document is designed to identify the minimum air inlet temperature at its installation site in order to prevent
the appearance of any condensates in the same when site conditions mean that the engine will have to operate
at low temperatures.

2. TEMPERATURE LIMIT IN THE ROOM OR CONTAINER ON START-UP

The gas engines air inlet temperature, should be no lower than 0ºC at start-up and the engines with injected
pre-chamber 10ºC. If lower temperatures are expected, the room, container or inlet air should be pre-heated to
achieve the minimum temperature indicated.
You should take into account the "Criteria for application of pre-lubrication, post-lubrication and oil and water
pre-heating" described in document IC-C-D-00-008e.
For lower room temperatures, check with Kohler.
This limitation does not apply to the engine with single cooling circuit, like the emergency engines.
RECOMENDATION
In these engines with single cooling circuit, it is recommended not to start up the external cooling system of the
facility until the engine water temperature is higher than 50ºC, in order to avoid the engine water temperature to
drop below than 35 ºC (obtained temperature due to the preheating system of the engine).

3. TEMPERATURE LIMIT IN THE ROOM OR CONTAINER ON OPERATION

The engine air inlet temperature -air filter- should be maintained over 0ºC for the engines FGLD/SFGLD/SFGM
when the engine runs over 30 % of nominal load to avoid surge problems or turbocompressor pumping. Below
of 30% the load the engine can run without problems with air inlet temperature below 0ºC.
In the applications where the air inlet temperature could be below 0ºC, is suggested not to run the engine at
higher load than 30% until the room temperature has been accommodated with the heat of the engine itself
during the operation at low load.
PRODUCT INFORMATION
IT-G-A-00-011e
MINIMUM ROOM TEMPERATURE FOR OPERATING GAS
4.1.1
INDEX DATE
C
June 2016
ENGINES
O&M_2.002211.810_A_10_2016
Dep. 2
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