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  1. Daikin Altherma Indoor unit (15 replies)
  2. Mitsi Heavy FDENA401R (0 replies)
  3. self fit help? (4 replies)
  4. coil sizing - custom project.. (0 replies)
  5. Max discharge temperatur (9 replies)
  6. HVAC design for apartments - Need Ideas (17 replies)
  7. air source heat pump:how to make water reach 80℃? (50 replies)
  8. Electricity consumption during hot gas defrosting (1 replies)
  9. 410a (1 replies)
  10. hot water outlet position in water tank? (5 replies)
  11. MVHR with Heat Pump Recovery - Reduced Defrost (10 replies)
  12. American Heat pumps required (7 replies)
  13. Fujitsu AOYR18LEC (1 replies)
  14. Daikin failures (5 replies)
  15. Daikin Sky Unit Feild Setting (22) 4-09 (3 replies)
  16. Pool Heat Pump (5 replies)
  17. fins spacing-outdoor heat pump (3 replies)
  18. Buffer tank size selection (1 replies)
  19. Need to warm a pond how to calculate it ? (2 replies)
  20. pipes insulation in air/water heat pumps (8 replies)
  21. Heat Pump Component Design Efficiency (15 replies)
  22. Heat pump design (1 replies)
  23. Grant Aerona ASHP - anybody know anything? (6 replies)
  24. Altherma frequent compressor cycling (80 replies)
  25. Fujitsu Compressor Brand (4 replies)
  26. Designing heat pump heating and cooling using a 4 way valve (2 replies)
  27. Nordyne defrost board (1 replies)
  28. Tappan Heat Pump Iced (0 replies)
  29. Ruud heat pump blower and heat problem (2 replies)
  30. Fujitsu Technical Helpdesk (2 replies)
  31. Symptoms of outdoor unit being undercharged in heat mode? (33 replies)
  32. Carrier Dustbin unit. (0 replies)
  33. Daikin U4 fault, power down and reboot sequence (3 replies)
  34. DIY Inverter Mitsubishi SRK25ZIX-S heat pump (2 replies)
  35. Crankcase heater? (11 replies)
  36. Toshiba smms pressures (2 replies)
  37. Mcb keeps tripping, Why? Help! (7 replies)
  38. would a change add value to a bungalow? (12 replies)
  39. Daikin Altherma Rotex HPSU + Sanicube Hydrocube (2 replies)
  40. Multi split advice UK (20 replies)
  41. Lennox package coil icing up (1 replies)
  42. Heat pump problem, any ideas anyone? (23 replies)
  43. York awhp 100 gsi chiller (r22) (0 replies)
  44. heatpump wont heat when below -5 C outside temp (9 replies)
  45. Toshiba MAR-F102 HTM8-PE VRV Issues... (3 replies)
  46. Domestic Air Source Heat Pump (39 replies)
  47. help please (6 replies)
  48. Reversing valve leakage (10 replies)
  49. Daikin VRV II U9 fault (1 replies)
  50. Fujitsu AOY90TPAMF (6 replies)
  51. city multis help please!! (4 replies)
  52. DX GSHP problems (29 replies)
  53. 1 out of 5 working (7 replies)
  54. Mr slim iced coil (13 replies)
  55. Changing Compressor Low ambient (6 replies)
  56. Daikin R407c Heat pump (9 replies)
  57. Confused over heat pump capabilities (8 replies)
  58. Daikin UATYP560AMY1 showing E10 fault (1 replies)
  59. Daikin altherma (1 replies)
  60. Ice in heat pump (42 replies)
  61. daikin vrv II not heating (3 replies)
  62. De-Icing problem on PANASONIC E12BKP (19 replies)
  63. Mitsubishi Mr.Slim heat pump (43 replies)
  64. trane heatpump wireing diagrams (1 replies)
  65. Heat Pumps at Low Ambients (13 replies)
  66. Hitachi v's Mitsubushi VRF (4 replies)
  67. Daikin blocked distributor (3 replies)
  68. lennox outdoor unit icing up (1 replies)
  69. Ground loop antifreeze (5 replies)
  70. Chigo Unit Troubleshoot (1 replies)
  71. Toshiba VRF (5 replies)
  72. explanation of defrost cycle (14 replies)
  73. Lennox Kp02 controller (1 replies)
  74. Heat pump project (17 replies)
  75. Heat Pumps Consumption Database (0 replies)
  76. Addition of a heat pump to solar heating system (24 replies)
  77. KickStart (11 replies)
  78. Does heat availabilty in the soil reduce over time ? (21 replies)
  79. Fujitsu Help Please. (7 replies)
  80. Refrigeration discharging (8 replies)
  81. Precharged system, 1 meter run? (37 replies)
  82. Daikin indoor unit totally dead :( (9 replies)
  83. Heat pump sizing (1 replies)
  84. Switch DC Relutance Compressor/motor (6 replies)
  85. Carrier 42g225hf error codes (0 replies)
  86. Advice on Air Source Heat Pump for hot water (18 replies)
  87. can i charge a R-22 Compressor with R-134 (1 replies)
  88. Hot Water out of RY60ev1a (9 replies)
  89. Water Source Heat Pumps DIY (32 replies)
  90. High Wall up and down (22 replies)
  91. Under what conditions are better? (1 replies)
  92. Serviceman (2 replies)
  93. Sanyo C-RN-220H5B (0 replies)
  94. Looking for supplier for package 500kW heat-pumps (7 replies)
  95. samsung codes 2009 (0 replies)
  96. TXV Selection (0 replies)
  97. Defrost scheme (3 replies)
  98. Solar Services salesman proposal (9 replies)
  99. Hitachi YUTAKI ASHP (10 replies)
  100. Output over-current fault (1 replies)
  101. Advice required Air / Water heat pump systems (8 replies)
  102. Calorex 510 Pool Heat pump - used (10 replies)
  103. Air Source components (2 replies)
  104. Daikin Air-con unit to heat water (3 replies)
  105. Domestic Heat Pump System (27 replies)
  106. modifying ashp? Evaporator question (4 replies)
  107. Air Source Heat Pump - Expensive to run! (17 replies)
  108. Roof Mount Split System Installation Photos (0 replies)
  109. Calorex (5 replies)
  110. House heat pump use in Croatia (1 replies)
  111. PUMY-P48NHMU errpr code (3 replies)
  112. Heat pump problem (9 replies)
  113. Water heater using heat pump (2 replies)
  114. Ice formation on condensing coil of heat pump (13 replies)
  115. Calorex 510 Heat pump question (8 replies)
  116. Remote control dead (11 replies)
  117. Fujitsu inverter wiring (2 replies)
  118. Fujitsu AOU12R1 Heatpump (11 replies)
  119. Daikin RUBBISH heat-pumps (19 replies)
  120. any one else, struggling? (2 replies)
  121. Cooline Room Air Conditioner Owner Manual (0 replies)
  122. water heating by heat pump (4 replies)
  123. AWHP - defrost heating strips (5 replies)
  124. fujitsu vrv j series airstage (5 replies)
  125. AWHP design - suction accumulator (9 replies)
  126. Multistack heat pump (3 replies)
  127. problem for fujitsu heat pump (2 replies)
  128. c02 heatpump (12 replies)
  129. Daikin VRV III (1 replies)
  130. subcontracting pricing jobs (1 replies)
  131. Airdale wiring diagram needed (4 replies)
  132. Heat pump power (3 replies)
  133. Need New Tech? (0 replies)
  134. Refrigerant charging basic? (5 replies)
  135. AWHP control & wiring diagram (0 replies)
  136. Daikin roundflow noisey (3 replies)
  137. Myson water pump tehnical data! (2 replies)
  138. Pool heat pump water side diagram (23 replies)
  139. moving air con unit (6 replies)
  140. Reasonable cost for Trane Heat pump (3 replies)
  141. How to calculate for scaling an air heat pump install? (2 replies)
  142. Best value swimming pool heat pump (4 replies)
  143. The power consumption of outside water pump (0 replies)
  144. LG Artcool (3 replies)
  145. A/C seal design and improvement (0 replies)
  146. Heat Pump CoP (2 replies)
  147. Bad heat pump design (TXV)? (4 replies)
  148. Buffer tank (0 replies)
  149. glycol in the heat pump (1 replies)
  150. required temperature for the radiator (5 replies)
  151. Noisy Daikin VRVIII 3 pipe BSVQ boxes (24 replies)
  152. Air to water split heat pump design (3 replies)
  153. Samsung AQB 18 Vicace Tripping Out RCD (13 replies)
  154. SILENCER FOR NOISY Payne HEAT PUMP (2 replies)
  155. Automotive compressor heat pump (19 replies)
  156. Heat pump help (5 replies)
  157. Calorex Pool Heater (22 replies)
  158. Is geothermal the future? (4 replies)
  159. Swimming Pool Heat Pump (31 replies)
  160. split driers (4 replies)
  161. Worcester Bosch Air to Air Heat Pumps (7 replies)
  162. 2.5 specific Dx gshp heat exchanger questions (14 replies)
  163. Home Heat Pump - Live Data (3 replies)
  164. Rechi Compressors (0 replies)
  165. what type of chiller you recommend (7 replies)
  166. Air source heat pump modification (4 replies)
  167. Keram 9kw heat pump (8 replies)
  168. LG heat pump problem (132 replies)
  169. York YCWM parameters (0 replies)
  170. Carrier Split Heat Pump Systems (7 replies)
  171. about compressor oil (8 replies)
  172. Chromalox incremental heat pump (3 replies)
  173. going self employed (9 replies)
  174. Spare Parts for Sharp Units ? Trade (5 replies)
  175. Fujitsu Multi problem (15 replies)
  176. ashp as primary heating source ? (8 replies)
  177. Heat Pump Design (10 replies)
  178. Serviceman a/c (1 replies)
  179. Daikin R410A Split System (8 replies)
  180. Mini split system heating, but not cooling well. (7 replies)
  181. Worker-Become serviceman (0 replies)
  182. Daikin chilly heat pumps! (6 replies)
  183. Greenline ground loop heat pump (4 replies)
  184. Please Help me! (3 replies)
  185. Design heat pump for a pool (10 replies)
  186. switch from cooling only to heat pump (6 replies)
  187. Carrier 50YQ048 (2 replies)
  188. Heat Pump components (22 replies)
  189. Daikin unit (4 replies)
  190. How much should I be paying? (18 replies)
  191. Tick-tick-tick noise while off? (11 replies)
  192. Carrier 410A heat pump question (1 replies)
  193. Air/Water HP advice please. (16 replies)
  194. Outdoor coil icing up... (18 replies)
  195. Change my heat pump to water source (14 replies)
  196. Airwell Problem (4 replies)
  197. Fujitsu AOY36RCG3L (3 replies)
  198. A Five-Year Administration's Solution to a Hundred-Year Problem. (4 replies)
  199. Need a heat pump engineer (7 replies)
  200. Calorex heatpump (10 replies)
  201. Heat Pump Issues!!! (8 replies)
  202. System sizing for heat and manual J (5 replies)
  203. stuck reversing valve (10 replies)
  204. Ground source heat pumps simulation and specs?? (24 replies)
  205. No defrost on Daikin (4 replies)
  206. Heat Pump Design Model on the Web (1 replies)
  207. How is HSPF measured and can units really be compared by the rating? (1 replies)
  208. Acid cleanup (8 replies)
  209. Chiller to heat pump (6 replies)
  210. superheat (26 replies)
  211. Idm Heat Pumps (1 replies)
  212. Discharge Muffler (22 replies)
  213. Is it worthwhile installing a Panasonic CS E12CKP, or is it ancient? (6 replies)
  214. Safety valve (4 replies)
  215. Need Advice on Refrigerant Line Diameter on install that was just done! (17 replies)
  216. Recommendations for Village Hall (14 replies)
  217. Small Geothermal Heat Pump (5 replies)
  218. Toshiba RAS 10/13 SAVP/SKVP-ND model differences (19 replies)
  219. Toshiba RAV SM/SP1400 defrost problem (11 replies)
  220. Mitsubishi ecodan Heatpump Boiler (67 replies)
  221. Heat Pump to drive Turbine (1 replies)
  222. old HP29 vs. new HP29 (0 replies)
  223. Oil Return On Dx Systems (0 replies)
  224. Refrigerant Handling Certification (2 replies)
  225. Galletti air to water heat pump again! (9 replies)
  226. Mix, replace R22 (5 replies)
  227. Reversing valve problem? (18 replies)
  228. Mitsubishi Heavy Cassette (3 replies)
  229. use of Frequency Inverter on 3 phase 230 copeland scrolls (1 replies)
  230. Capacity tables for Copeland ZP Scroll compressors (6 replies)
  231. Article HP is way out for global Warming (2 replies)
  232. Mr Slim remote control not working (2 replies)
  233. Galletti chiller (4 replies)
  234. Over Charge (7 replies)
  235. Need Help with a Mitsubishu (14 replies)
  236. climatemaster geothermal heat pump query (42 replies)
  237. Window Heat Pump (A/C) (5 replies)
  238. EcoCute CO2 heat pump water heaters (38 replies)
  239. Condensing unit for GSHP Model (0 replies)
  240. De superheater in Air Cooled Chiller (5 replies)
  241. RCD Fault (8 replies)
  242. Please help (7 replies)
  243. COP heating coefficient (1 replies)
  244. Mitsubishi VRF Problem (1 replies)
  245. Domestic VRF heat pump? (8 replies)
  246. Daikin Controllers (12 replies)
  247. Fujitsu (3 replies)
  248. Suction and liquid line capacities for 410a (1 replies)
  249. Fast learning servisman (3 replies)
  250. Fast learning servisman (3 replies)