US 24V Home alexa/google support WiFi Smart Heat Pump thermostat
>> General
HTW-81-FN7 Series Multi-Stage Digital Thermostat is a device for indoor temperature control. It is mainly applied to heat pump system for heating/cooling, with 3 modes easily switchable: Schedule, Hold and Holiday. The device is of high reliability and practicability,and it can support up to 3H/2C system.
>>Features
--Elegant design with 4.3" LCD display
-- Individual programming Schedules:7 days*4 time periods
-- Tempered glass panel with capacitive touch buttons
-- NTC thermistor
>>Specification
-Power supply: AC24V, 50Hz
-Power dissipation:2W Dimension: 136*94*26mm Output: <1A (Resistant load)
-Temperature range: 41ºF -99ºF (5ºC -37ºC)
-Display accuracy: ±0.5 ºC
-Wiring: Terminals
-Installation dimension: 60mm / 82mm (hole pitch)
>>Application
-1H/1C (conventional)
-1H/2C (conventional)
-2H/2C (conventional)
-2H/1C (conventional)
-1H/1C (heat pump)
-2H/1C (heat pump)
-2H/2C (heat pump)
-3H/2C (heat pump)
>>Wiring Diagram
>>Terminal Instruction
| Terminals |
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Explanation |
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Remark |
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| RC |
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Cooling power (two transformers) |
Joined with R by jumper (one transformer) |
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R |
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Heating power (two transformers) |
Joined with RC by jumper (one transformer) |
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| W (O/B) |
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Heat output |
Changeover valve output (heat pump) |
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Y |
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Cool output |
Compressor output (heat pump) |
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G |
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Fan output |
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C |
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24VAC common |
Connect only when AC power |
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| Y2 |
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Cool output 2 |
2nd stage compressor output (heat pump) |
| W2(AUX) |
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Heat output 2 |
Auxiliary heat output (heat pump) |
>>Controlling Type Configuration
| No. |
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Type |
Terminals |
Wiring |
Compressor delay |
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| 0.0 |
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1H/1C (conventional) |
R,G,W,Y |
Diagram |
none |
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| 1.0 |
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1H/2C (conventional) |
R,G,W,Y,Y2 |
none |
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conventional |
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| 2.0 |
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2H/2C (conventional) |
R,G,W,Y,W2,Y2 |
none |
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systems |
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| 3.0 |
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2H/1C (conventional) |
R,G,W,Y,W2 |
none |
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| 4.0 |
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1H/1C (heat pump) |
R,G,O/B,Y |
|
1 min (default) |
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| 5.0 |
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2H/1C (heat pump) |
R,G,O/B,Y,AUX |
Diagram heat |
1 min (default) |
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pump systems |
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| 6.0 |
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2H/2C (heat pump) |
R,G,O/B,Y,Y2 |
1 min (default) |
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| 7.0 |
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3H/2C (heat pump) |
R,G,O/B,Y,AUX,Y2 |
|
1 min (default) |
>>Company Profile
>>Our Services
>>FAQs
Q1:What is the unit price?
A.:The unit price varies according to different specific requirements, we are more than pleased to quote you the best price once
get your specific application. e.g. W/O Modbus, W/O key-card, 2/4 pipe system, W/O customized programming...
Anyway, we are always ready to discuss details with you via Email.
Q2:What is the MOQ, small quantities accetaple?
A.: Commonly the MOQ for us is 500pcs, however, we also accept small quantities or Sample orders as starting.
Q3:How is your products' quality and warrenty?
A.:All of our products meet EU standards, samples are available for quality evaluation; all products are with 18 months warrenty.
Q4:Can I print my logo on the products, and customize my own designed packing?
A.:100% YES, but the order quantity shall be over MOQ, or else, extra costs will be charged.
Q5:Do you supply OEM or ODM?
A.:Yes, we have strong R&D sources and production ability, and already helping many international companies OEM/ODM cases with highly positive feedback.
Q6:Why should I buy products from your company?
A.:That's really a good question, Quality Products but with Competitive Price, Timely Delivery, Professional and Fast Reacton, ...
In a word, WE ARE DIFFERENT, why not just try from the Email...
Audited Supplier 
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