--There must be a heat emission hole in your system, you can use flexible tubes to connect air conditioner unit.

--All wires are ready before shipping. Users only need to do 3 steps:
1. Connect to DC power supply
2. The drive board connects to the compressor
3. Connect to your system’s on&off switch

--One year warranty, lifelong technical support.

--PayPal, Credit cards, Bank transfer & L/C.
--DHL/UPS, By Air, By Sea are available.
--50% deposit in advance, balance against B/L or courier receipt.

--50% deposit in advance, balance against B/L or courier receipt.

-- 10 days for sample order, and within 30 days for mass production.

-- RIGID provides OEM&ODM and personalization service to match your system-specific cooling requirements.

-- You can purchase in our online store, https://www.rigidhvac.com/online-order

-- DC condensing unit, 190*160*138mm / 2.5kgs (5.51lbs)
-- Compact coil chiller, 275*175*138mm / 3.0kgs (6.61lbs)
-- Plate liquid chiller, 330*200*138mm / 3.5kgs (7.72lbs)
-- Coaxial liquid chiller, 190*160*138mm / 4.5kgs (9.92lbs)
-- Micro DC aircon, 350*260*180mm / 5.0kgs (11.02lbs）

-- 20 sets

-- All RIGID DC cooling units are fully charged with oil and refrigerant before shipping. Users needn’t charge refrigerant. Afterward, If you need to refill the compressor with refrigerant for maintenance, there’s one valve for a refrigerant refill.

-- Max cooling capacity is 550W (1,876Btu) when the compressor runs on maximum speed

-- RIGID dc aircon module is a sub-system, without On & Off switch, need to wire up your own switch. DC Aircon unit is filled with refrigerant and oil before shipping.

---The sound produced by the unit during operation is quiet, less than 48dB.

---Two white wires need to be closed or wire up to your On/Off Switch. Wires merge is On, separate is Off

---The air flow is 27.8CFM.

---There is a drain for condensate water. You can collect the condense water via a tube to a condense collection tank (If you want to use the condense water)

--- Shipping freight is USD90 for one sample, DHL express door to door shipping.

--The green one was twinkling, the red one was not on means that the motor is in standby, please merge the two white lines first.

--Anti-clockwise to decrease compressor speed, clockwise to increase compressor speed.

--Do you have a multimeter? You can use a multimeter to measure the resistance of the potentiometer.

If the resistance value is more than 30K, adjust the potentiometer clockwise to reduce the resistance value, the factory setting resistance value is about 20K. Plus, this is a multi-turn potentiometer. It may take a few turns. When you reach the end, you will hear a slight “click” sound.

--They share same size and configuration. But 3320-24V is more powerful, it has more 50% capacity than that of 1910-12V.

--It depends on your ambient temperature and space volume and insulation standard. The maximum cooling temperature RIGID micro dc a/c achieves, 15-20 degree C lower than that of your ambient temperature.

--The major part mini compressor operating life is 10 years. The complete chiller is able to work around the clock/24hrs continuously.

--RIGID DC Aircon unit, as well as other compact liquid chillers, have been fully charged oil and refrigerant before shipping. About thermostat, you can purchase in our online store.

--There are 4 ways to adjust compressor speed.
1. Potentiometer speed control(already have)
2. 0-5v Speed control
3. PWM Speed Control
4. TTL communication port
The above 4 ways, the most common way to control the compressor is through potentiometer (included) adjustment.

-- 1. Check if all wires are connected correctly.
-- 2. Check DC power battery is fully engaged or not.

--Refrigerant is already in the cooling units, no need to add refrigerant gas. If you have to refill R134A gas, the amount is 50g~60g

--You can connect the thermostat to a 0-5v speed control terminal of the compressor driver board.

--2 mini dc compressors in parallel bring you twice more cooling capacity. Besides standard small cooling systems, RIGID also provides personalized service, and custom made compact chiller to meet user’s specific demands.

--There’s a valve for a refrigerant refill for user’s maintenance if needed. Make sure no air & moisture into the cooling unit while recharging refrigerant gas. The R134A refrigerant gas amount is 50g~60g, Maximum 65g.

-- The refrigeration oil RL-68H compatible with HFC-134a is used for high reliability. The oil has
excellent thermal stability and wears resistance properties. No other additional oil is allowed.
-- Use high purity (above 99.9% or above 99.95% if possible) HFC-134a only.

1. Analog speed control (0-10v) is the default speed control mode. The mode can be temporarily changed thru communication software provided by EUNICUM, but the changed mode can NOT be stored in the product.
2. Under the communication control mode, the user can control the compressor speed thru setting-up “Control Instruction” and “Speed Setup”
3. Under analog speed control (0-10V) mode, the relation between the voltage and the speed are linear relation.
- 0V-3.0V, compressor stop; ≥3.3V, compressor start to run; 3.3-10V, corresponding speed is 2000~-6000rpm
4. Red/Green LED to indicate the status of the drive board. (See below chart)

-- Apply to Coil Chiller / Plate Chiller / Coaxial Chiller.