SRL Service Manual
Revision 00
July 2007
Page 27 of 56
5. Installation
The SRL dryers have Nema 1 protection against the ingress of moisture and particles. They must be
installed indoors or provided adequate protection against wind, rain and direct sunlight. Faults
occurring from improper installation are not covered by warranty.
• Orient the unit so that there is adequate access to the control panel and drain compartment.
Verify that a minimum clearance of 5 ft (1.5 m) is left around the machine for maintenance access
and ventilation to the unit. For models with condenser fans in the top panel, leave at least 7 ft (2
m) above the dryer for adequate cooling air discharge.
• Refer to the Operating Limits in Section 2 for details on maximum and minimum ambient
temperatures.
• Verify that the power supply provided matches the the power supply indicated on the rating label
for the dryer.
• Connect the supply power cables and ground in accordance with all applicable regulations.
• Protect the dryer with an overcurrent and ground circuit breaker (0.3 Amps).
• Connect the inlet and outlet compressed air piping connections to the dryer using the correct ports
as indicated on the dryer.
SRL-250 through 1200 have BSP threaded inlet and outlet ports. BSP to NPT adapters
are provided (loose) and must be installed. Attempting to thread in NPT pipe into the
BSP ports will damage to the threads.
• Install a bypass line around the dryer, and inlet and outlet isolation valves, so that maintenance or
calibration operations can be carried out without interrupting the downstream compressed air
supply.
Do not flow air through the dryer when it is OFF. Open they bypass line and close the
inlet and outlet isolation valves at all times when the dryer is in the OFF position.
• Install a Sullair 1 micron coalescing pre-filter (SCF or PF) immediately upstream of the dryer to
prevent rust, pipe scale, bulk water, oil or other pollutants from entering the system and clogging
the heat exchangers, separator, or condensate drain. This can cause pressure drop, condensate
carry over, loss of efficiency, and or damage to the dryer.
Adequate Sullair pre-filtration is a requirement for extended warranty coverage. Contact
Sullair for further details.
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