Hello, I have a Jandy JXi Pool Heater and an Intermatic T101R Mechanical Timer. I would like to add a 56T4042A Heater Control/Fireman Switch. Does anyone know where I connect the fireman switch to the heater? Thank you!
Connect Fireman Switch to Jandy JXi Heater
- Thread starter KeithSm
- Start date
Why do you want to use a fireman's switch? They were designed to let a pool heater cool down before the pump shuts off. Your heater has a cool-down cycle built in to its control.
Thanks 1poolman1. My pump and heater turn off at the same time - so I thought I needed to turn my heater off earlier to allow it to cool down.
It is better to keep the heater powered at all times so that the cool-down cycle can work if the heater happened to be running when the system shuts down.
JXI HEATER CONNECTION AT "FIREMAN'S SWITCH"
Pool School
At the JXi Power Interface Board connect one end of two wires to terminals POOL and COMMON (J6).
Connect the other end of these two wires to terminals 1 and 2 of the AquaLink RS Green terminal bar.
Set pool thermostat to maximum (104 F).
Set the JXi to recognize this type of connection by holding down MENU, POOL, and SPA buttons together for 7 to 10 seconds at the JXi's User Interface. Set REMOTE to T-Stat. Press POOL button to exit.
Pool School
At the JXi Power Interface Board connect one end of two wires to terminals POOL and COMMON (J6).
Connect the other end of these two wires to terminals 1 and 2 of the AquaLink RS Green terminal bar.
Set pool thermostat to maximum (104 F).
Set the JXi to recognize this type of connection by holding down MENU, POOL, and SPA buttons together for 7 to 10 seconds at the JXi's User Interface. Set REMOTE to T-Stat. Press POOL button to exit.
That works, but you must remember to NOT set the temperature to 104 on the heater unless that is the temp you desire. That connection is for an automation system to have control of the heater on/off. Without that the heater is on its own. That's why I didn't mention it. The OP has a mechanical timer.
7.2 Connecting to an AquaLink Control.
System or Remote TSTAT (2-Wire Connection).
An interrupt (on/off-type) remote can be connected as a Remote TSTAT to turn the heater on or off but not perform any other function.
When using this type of connection, remember to set the heater control to “POOL” or “SPA” and set the thermostat control to maximum.
NOTE: When a fireman’s switch is being utilized and “hi-lo-com” is selected, the heater will fire automatically when the contacts close even if the user interface on the heater is off.
7.2.1 Install the Remote TSTAT
• Turn off the power to both the pool/spa control system and the heater unit.
• Follow service access instructions from Section 6.1, Service Access.
• Run the wires from the pool/spa control system through the low voltage knockout on the right or left hand side of the heater.
• Connect the wiring from the pool/spa control system to the heater remote control terminal.
• Connect the two wires to Pool and Common (not Spa) on the J6 terminal bar.
See Figure 15 item “b”.
• Reinstall panel.
• Restore power to the heater and the pool/spa control system.
NOTE: If you install a time clock to control the filter pump operation, it is recommended that the time clock have its own low voltage (Fireman’s) switch to turn off the heater before turning off the pump.
The switch should shut off the heater about 15 minutes before the filter pump shuts off.
This will allow for a more efficient operation by removing any residual heat contained in the heat exchanger back to the pool.
System or Remote TSTAT (2-Wire Connection).
An interrupt (on/off-type) remote can be connected as a Remote TSTAT to turn the heater on or off but not perform any other function.
When using this type of connection, remember to set the heater control to “POOL” or “SPA” and set the thermostat control to maximum.
NOTE: When a fireman’s switch is being utilized and “hi-lo-com” is selected, the heater will fire automatically when the contacts close even if the user interface on the heater is off.
7.2.1 Install the Remote TSTAT
• Turn off the power to both the pool/spa control system and the heater unit.
• Follow service access instructions from Section 6.1, Service Access.
• Run the wires from the pool/spa control system through the low voltage knockout on the right or left hand side of the heater.
• Connect the wiring from the pool/spa control system to the heater remote control terminal.
• Connect the two wires to Pool and Common (not Spa) on the J6 terminal bar.
See Figure 15 item “b”.
• Reinstall panel.
• Restore power to the heater and the pool/spa control system.
NOTE: If you install a time clock to control the filter pump operation, it is recommended that the time clock have its own low voltage (Fireman’s) switch to turn off the heater before turning off the pump.
The switch should shut off the heater about 15 minutes before the filter pump shuts off.
This will allow for a more efficient operation by removing any residual heat contained in the heat exchanger back to the pool.
Aqualink RS4 Upgrade
I have an old RS4 module controlling my pool/spa/heater and lights. I am also thinking about switching to salt water. Would this module to the trick? Seem pretty easy to swap out. Jandy Zodiac iAquaLink 3.0 RS Conversion Interface Kit IQ30-RS I found it on the internet for about $1k. Local...
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