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CTCU UNIT HEATERS INSTALLATION OPERATION AND SERVICE MANUAL
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Figure 3: Installation Clearances and Clearances to Combustibles
If installed at low levels where individuals can come in contact with hot heat exchanger components,
adequate guarding must be provided.
All distances are minimum clearance requirements for service access, air flow and safety.
The heater must always be installed at least 1.8 m above the floor.
The flue pipe must have clearance from combustibles by 5 cm.
* Heaters may be mounted at a higher level if destratification
fans are installed.
**80 cm is necessary to service
heater.