Swimming Pool Equipment, Spas, Fountains and Hydromassage Bathtubs Marking and Application Guide
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4.4. LUMINAIRES
Luminaires used in this installation are the same as those previously detailed under
―PERMANENTLY INSTALLED SWIMMING POOLS.‖
4.5. PUMPS
Pumps in this application are essentially identical to those previously discussed under
―PERMANENTLY INSTALLED SWIMMING POOLS.‖ The one exception is the product
name accompanying the UL Listing Mark should indicate if the pump is either a ―Spa Pump‖
or ―Swimming Pool or Spa Pump.‖ A pump with a Listing Mark indicating only ―Swimming
Pool Pump‖ has not been investigated for use with maximum 50° C (122°F) water.
4.6. SUCTION FITTINGS
General. These units are intended to be provided at all the intake ports of the spa. They
have been evaluated to determine that they would not pose a hair entrapment danger when
operated at or below their marked flow rates. The maximum flow through the suction fitting
should not exceed the marked maximum flow rate of the suction fitting.
4.7. WATER HEATERS
Water heaters can be used with the same limitations described in ―PERMANENTLY
INSTALLED SWIMMING POOLS.‖
4.8. WATER TREATMENT EQUIPMENT
Water treatment equipment can be used in this type of installation in accordance with the
limitations previously detailed for water treatment equipment under ―PERMANENTLY
INSTALLED SWIMMING POOLS.‖
4.9. EQUIPMENT ASSEMBLIES
General. Equipment assemblies (―Skid Packs‖) are pre-packaged combinations of
equipment such as pumps, filters, heaters, blowers, luminaires, and controls. They are
intended to be permanently plumbed to a field supplied spa or hot tub using non-metallic
piping only. They are designed for indoor or outdoor use and are intended to be installed at
least 5 feet from the inside walls of a spa or hot tub.
UL Listed equipment assemblies have not been evaluated for below-grade installation and
are not suitable for use within an outer enclosure, or under the skirt of a spa or hot tub,
unless so marked.
Listed equipment assemblies that contain a gas- red water heater have not been evaluated
for (1) indoor use, (2) use within an outer enclosure, or (3) use under the skirt of a spa or hot
tub, unless so marked.
Some equipment assemblies do not contain a heater and, therefore, do not have a water
temperature regulating control or water temperature limiting control. Units of this design are
intended to have a water heater, a temperature regulating control, and a temperature
limiting control provided in the final installation.
Listing Mark. The UL Listing Marks for these products include the following product names,
as appropriate:
―Equipment Assembly for Spa/Hot Tub,‖
