MasterStat Thermostat for Evaporative Coolers
Key features
- •Designed to control any ducted evaporative cooler with a 2-speed motor up to 1 HP at 120-Volt or 2 HP at 240-Volt
- •Onboard sensor has a control range of 50 to 90 Degrees F; Outputs provided are auto/manual, pump, fan and timer modes
- •If power is interrupted while unit is operating, the unit will resume in the mode active during power loss; Rain proof control box included
- •Kit includes wall control thermostat, 2-speed control, wire nut for common earth connection; spare 3.15-Amp fuse for control, jumper wire for link to N-link; Easy to install in an existing outlet box - minimal wiring required
- •Compatible with MasterCool ADA51/71, ADA5112/7112, ASA51/71, ASA5112/7112, AUA51/71, AUA5112/7112, all AD1C-contractors series, all AS1C-contractors series, all AU1C-contractors series, all AD2C-contractors series, AS2C-contractors series, AU2C-contractors series; Compatible with UltraCool ADA50/70, ADA50-12/70-12, ASA50/70, ASA50-12/ASA70-12, AUA50/70, AUA50-12/70-12 ada, ADA51/71-series, ADA5
MasterStat Thermostat for Evaporative Coolers
List Price: $167.31$150.58DEALYou Save: $16.73 (10%)
Free shippingFree Returns – 30 daysFree Order CancellationSecure Payment2–3 Days DeliveryGet It June 23, 2026In Stock (30)No marketing spamNo account requiredFulfilment by FedEx / Amazon / UPS / ShipwirePayPal / Card Buyer Protection
Customer Reviews
Reviews sourced from verified Amazon purchasers4.1
out of 5
Based on 10 reviews
5★
80%
4★
20%
3★
0%
2★
0%
1★
0%
Works perfectly!
Maynez•April 7, 2018
It worked perfectly for my Mastercool swamp cooler. The installation is simpler of what it looks in the installation guide. I put together the following diagram to display how it needs to be installed.
Looks like a good unit however
Amazon Customer•April 28, 2017
Much more complicated than I thought it would be. Still not installed at this time. Looks like a good unit however.
Good Warrenty
Bob Moss•September 7, 2016
Pre-wet function did not work.
Champion replaced the unit promptly.
Champion replaced the unit promptly.
The right replacement
Bill Heppe•August 20, 2016
At first I was intimidated by the controller but, with patience and diligence, I am very happy with the way it turned out. I mounted it on the outside of my cooler and fed power with a flexible conduit. If you have two pumps, use a 3/4" conduit nut, between the unit and the cooler. The feed for the thermostat is 3/8". Don't feed the low-voltage with the high-voltage.
This unit allows you to test the operation of each element: Fan-Hi; Fan Lo; Pump-circ and Pump-Purge. I found out my purge pump was inoperative so I replaced it.
It works perfectly!
This unit allows you to test the operation of each element: Fan-Hi; Fan Lo; Pump-circ and Pump-Purge. I found out my purge pump was inoperative so I replaced it.
It works perfectly!
Thermostat
M. Smith•August 1, 2016
Excellent no problems
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