Cal Spas LTR20121002 Hot Tub User Manual


 
Inground Spas
LTR20121002, Rev. A
Preparing for Your New Inground Spa
www.calspas.com
19
Gate/Slice Valves
The use of gate valves is recommended on all plumb-
ing lines (both suction and return lines). These valves
are used to contain the spa’s water in either the equip-
ment or the spa. This will assist in the pump priming
process and future servicing without needing to drain
the spa.
NOTE: When draining the spa to perform mainte-
nance, always close the gate valves prior to draining.
This will maintain the pumps prime.
Connecting Plumbing to Remote
Equipment
Connecting the plumbing from the spa to the equip-
ment pack must be performed in accordance to local
and city codes.
NOTE: Most codes require plumbing to be rigid PVC
schedule 40 or heavier in both above and below
ground installations. In most cases, the use of exible
PVC plumbing is acceptable when properly buried in
trenches.
Most water plumbing lines are 2” or larger and must
be schedule 40 or heavier PVC. When plumbing, mini-
mize the use of 90˚ elbows as much as possible. The
use of 45˚ elbows will increase the amount of jet pres-
sure you will have over the use of 90˚ elbows.
The plumbing on the spa shell is labeled by the factory
in the following manner:
Pump 1 Suction: 2” line that connects the spa lter
and bottom drain assembly to the front of pump 1.
Pump 1 Return: 2” line that connects the top of pump
1, through the equipment lter and heater back to
selected jets in the spa.
Pump 2 Suction: 2” line that connects the spa lter
and bottom drain assembly to the front of pump 2.
Pump 2 Return: 2” line that connects the top of pump
2 back to selected jets in the spa.
Ozone Line: 1” line that connects to a 1” exible line
extending off the bottom of the equipment pack lter
canister through an ozone injector (If ozone equipped)
and connected to ozone port on the spa.
Air Blower: 1 1/2” line that is plumbed out of the air
blower (located on the equipment pack) and extended
up 18” above the spas water level to prevent water
ooding the air blower.
Air Venturi: 1/2” line that is plumbed 18” above the
spa’s water level.
Topside Control Panel and Temp Sensor: 1” line that
connects to the bottom of the control box located on
the equipment pack.