Q1: Are you a factory or trading company?
We are a specialized manufacturer of food dehydrator machine for more than 18 years. We have own brand Drytech drying machine production line. We own both of Domestic and international sales department, so far, our heat pump dryers exported to more than 50 countries.
Q1.1. What is the area of your factory?
7200 Square meters
Q2: Where is your factory located?
Drytech Heat pump dryer factory is located in Guangzhou City,Guangdong province, China, from Guangzhou Baiyun Air Port to our factory around 15KM, welcome to visit.
Q3: How is the quality of your products?
Drytech heat pump dryers are manufactured strictly according to national and international standard, and we take a test on every fruit and vegetable dehydrator before delivered out. We have got ISO,CE certification and all kinds of testing reports; if you want please just ask us for it.
Q4: What is the MOQ?
The MOQ is 1 unit Drytech heat pump dryer(1 set Drytech drying machine, from DT100H to DT1500HD, one of them).
Q5: What is your Payment Terms?
Regular payment terms are T/T, L/C, Western Union, Paypal, other payment terms can be negotiable.
Q6: What about your packages?
The food drying machines are packing in new strong standard plywood cases. We have been exporting lots of products overseas, no any clients make any complaints about our packages. Please contact us and we will send photos to show you the details of our secure packages.
if delivery as FCL, we will loading everything in one container, chamber panels,trolley and trays no need packing.
Q7: What is the delivery time?
For the regular equipment, the delivery will be 15~20 days. For customized heat pump dryers model will be further negotiation with us.
Q8: What about the Warranty?
We are committed to every food drying machines before delivery through professional commissioning debugging to ensure that the machine is best for you. currently warranty is one year, Long-term to provide an after-sale spare parts service cost price.
Q9: Can I be your agent?
Yes, if you want to become our distributor in your country, we are a pleasure that we share profits and cooperation with you,thank you.
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Trouble shooting for Drytech heat pump dryers(food drying machine):
Usually There are three working modes only
H-Dry: Heating drying, chamber temperature rise,but can not discharge moisture.
Hdry+moisture: Heating drying + discharge moisture(usually choose this mode)
C-Dry: cooling
Drytech Heat pump dryers FAQ
1. high pressure protection
A. hot air circulating fans does not working
a1. AC contactor use for hot air circulating fans overloading protection(please check power source whether lack phase/connecting port or voltage not stable)
a2. part of hot air circulating fan not working(check whether the fans have many ON/OFF switch or some fans was burned)
a3. Fan was damaged (replace new fan or uninstall damaged fans)
B.Too much more products on trays or too much more trays on trolleys lead to block hot air (hot air cannot circulating in drying chamber or too slow wind speed, usually two tray’s distance at 8-10cm is reasonable).
C. electronic expansion valve throttle opening too small; or jammed.
c1. Controller adjust electronic expansion valve’s opening to small automatically(temperature sensor not accurate—change installation place, exchange 1# and 2# sensor’s position)
c2. electronic expansion valve does not working(turn valve body)
D. chamber’s temperature too high(set lower temperature)
E. refrigerant is not high temperature type, re-fill gas.
2. low pressure protection
A. leak gas(check leak point, repair)
B. weather too cold(expand check time for low pressure protection, or charge low temperature gas, e.g. R22/R417A)
C. electronic expansion valve opening too small(adjust bigger)
3. exhaust temperature too high protection
A. leak gas(check leak point, repair),
B. electronic expansion valve does not working(turn valve body).
4. temperature sensor error(replace new one)
5. discharge moisture too slow or does not discharge moisture A. dehumidify fan was damaged, B. controller go wrong, C. dehumidify fan power
Phase dislocation
R S T are live lines, please exchange R and S position, then try restart dryers, if still error, please restore the normal position, then exchange R and T, try restart....if still error, exchange S and T.