IntelliCenter with Hayward heater

[ek1]

I am trying to get a Pentair IntelliCenter i5P (521905) to control a Hayward H250FDN heater.

Page 29 of the Pentair installation manual says:

Connecting a Standard Gas Heater to the Load Center
The IntelliCenter® Control System heater control uses low voltage dry contacts that can be connected to most gas heaters or heat pumps with 24 VAC control circuits. The following connection instructions are for gas heaters and heat pumps with low voltage thermostats. To connect the heater thermostat cable plug to the IntelliCenter Control System circuit board:

1. Switch OFF power to the heater. CAUTION IMPORTANT: DO NOT disconnect or conductor around the thermostat, pressure switch, high limit switch, or other safety devices.
2. Remove the factory installed jumper from the heater’s Fireman’s Switch connector. At the heater, connect the conductors in accordance with heater manufacturer’s instructions. For older heaters without instructions for remote operation, connect the conductors to the Fireman’s switch connections in series with the thermostat, pressure switch, and other safety switches.
3. Run a two-conductor cable from the heater Fireman’s Switch connector through the low voltage raceway to the Load Center or Power Center circuit board, as shown below. NOTE: Use 221° F (105° C) temperature rated conductor for connection to the heater. When connecting conductors inside the heater, be cautious of HOT internal parts of the heater. Refer to the minimum temperature rating for conductors recommended by the manufacturer. See the heater owners manual for details.
4. Strip back the conductors ¼ in.
5. Insert the conductors into the GAS HEATER two-screw terminals (J2) on the motherboard. For heater circuit board screw terminal location see below. CAUTION: Be sure that the conductors from the heater to the IntelliCenter Control System Load Center are not near or touching any line voltage conductors in the heater. Failure to follow these instructions may cause the heater to malfunction.
6. Set the Power (Thermostat Select) switch to either Pool or Spa.
7. Set the heater’s Pool and Spa thermostats to their maximum position.

PROBLEM: The Hayward heater DOES NOT have a fireman's switch.

Page 29 of the Heater installation manual says:

Remote control connection:
The heater is equipped for connection to an external 2-wire remote thermostat or a 3-wire remote switch. A 2-wire thermostat has its own temperature sensor for regulating water temperature. A 3- wire remote switch allows the “POOL” or “SPA” models to be remotely selected. Connect remote wiring to the terminal block located in the lower compartment inside the junction box (see Figure 18). The heater has 2 junction boxes (one on each side of the heater). Only one junction box should be used for remote wiring. Do not remove the wires connected to the remote connection terminal block. Remote wiring must be run in a separate conduit. Use 22 AWG wire for runs less than 30 feet. Use 20 AWG wire for runs over 30 feet. The maximum allowable run is 200 feet.

PROBLEM: Intellicenter wants to use it's own water temp sensor and simply power the heater on or off as needed, which does not seem to be supported by the heater. The heater wants to receive either a remote thermostat signal or a full remote control connection (i.e. Hayward Omnilogic, etc), neither one of which seems to be supported by Intellicenter.

What is the best way to get this done?

 

[Jimrahbe]

ek1

You use this... From your manual..

"This type of remote has its own temperature sensor for regulating the water temperature. To disable the heater’s thermostat, set the bypass dipswitch to the “on” position. Wire the remote to terminals 1 & 2 of the terminal block. Do not remove the jumper clip on terminals 4 & 5. To operate the heater by remote thermostat, the heater’s control must be in either the “Pool” or “Spa” mode. The heater’s display will show “bO”. The “Pool” or “Spa” LED will be illuminated. The heater will fire when instructed by the remote thermostat. The heater’s thermostat will function to limit the water temperature to a maximum of 104° F."

This is just a two wire connection between your heater and the gas heater connector in the IntelliCenter.

Using the above set up lets the IntelliCenter use its own water temp probe to measure the heated water. It does not mean that you have to add an additional temp sensor.. For all practical purposes, it is the "Fireman's Switch"

Thanks,

Jim R.

 

[DavidArmenB]

Use the two wire remote method directed in the manual. This is the “fireman’s switch”. This is exactly what you need. This makes the temp sensor in the heater inactive and uses the automation temp sensor