Hayward OmniLogic Installation Manual page 15

"Dual Equipment - Shared Heaters" for Pool/Spa Configuration
These systems have 2 complete sets of equipment (filter pump, filter) and shared heaters. Refer to the diagram below:
POOL
In from POOL
FILTER
POOL FILTER
PUMP
Some important notes regarding the control of Dual Equipment Pool/Spa systems with shared heaters:
In the Pool/Spa Config., select:
1. When dual equipment is selected:
a. The pool filter can be a one, two or variable pump.
b. The spa filter can be a one, two or variable pump.
c. The heater(s) will be dedicated to the spa whenever the spa filter is on and the spa temperature setting is not off.
2. The water sensor should be installed on the pool loop prior to the heater(s) and will display the pool temperature whenever the "Pool Filter" pump is running.
3. The dual equipment spa sensor should be installed on the spa loop prior to the heater(s) and will display the spa temperature whenever the "Spa Filter"
pump is running.
4. The OmniLogic can be programmed to accommodate spillover if desired. Note that spillover operation will be automatically suspended whenever the spa
filter pump is turned on.
5. The chlorinator cell and flow switch must be installed in the heater return path. If spillover is enabled, then the OmniLogic can chlorinate both the pool and
spa (during spillover operation). Otherwise, the OmniLogic will only chlorinate the pool when the spa does not control the heater(s) and the spa sanitization
will have to be handled manually.
6. If any water feature or pressure side cleaner boost pumps are used, be sure to enable the "interlock" feature (see CONFIGURATION for details) to ensure
that the pumps operate only when the "Pool Filter" pump is on and the system is in the "pool only" operating mode.
7. The plumbing diagram on page 9 is intended to be used as a general guideline and is not a complete plumbing schematic for the pool.
SOLAR
TEMPERATURE
SENSOR
SOLAR BOOST
CHECK
PUMP
VALVE
CHECK
VALVE
SOLAR
VALVE
VALVE 1
Out to POOL
USE ONLY HAYWARD GENUINE REPLACEMENT PARTS
HEATER
HEATER
SPA
TEMPERATURE
SENSOR
ELECTROLYTIC
CELL
FLOW
SWITCH
VALVE 3
SPA
FILTER
In from SPA
SPA FILTER
VALVE 2 PUMP
Out to SPA
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