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HIdRos WDH 039, Technical Manual

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HIdRos WDH 039 Technical Manual Download Page 15

WDH 

Ground source heat pumps

   

 

 

MTWDHGB  

 

REV.072008 

15 

 

WDH 

HEATING CAPACITY AND COMPRESSORS INPUT POWER 

 

PH (kW) 

PA (kW) 

TWUC (°C) 

TWUC (°C) 

C.O.P. 

Mod. 

TWIE 

(°C)

 

TWUE 

(°C) 

35 

40 

45 

50 

55 

60 

35 

40 

45 

50 

55 

60 

35 

40 

45 

50 

55 

60 

0 -5 

194,5 

190,3 

186,8 

   

50,3 

56,4 

63,6 

   3,9 

3,4 2,9       

2 -3 

207,9 203,0 198,7 195,1   

 

50,5  56,5  63,6  71,9 

 

 

4,1 

3,6 3,1 2,7     

5 0 

229,5 223,7 218,2 213,4   

 

50,8  56,8  63,8  71,9 

 

 

4,5 

3,9 3,4 3,0     

7 2 

245,1 238,6 232,4 226,7 221,8   

51,1  57,0  63,9  72,0  81,4 

 

4,8 

4,2 3,6 3,1 2,7   

10 5 

270,3 262,7 255,3 248,4 242,1   

51,4  57,4  64,3  72,3  81,5 

 

5,3 

4,6 4,0 3,4 3,0   

13 8 

297,8 289,1 280,6 272,3 264,6 257,6  51,7  57,8  64,7  72,6  81,8  92,3  5,8 

5,0 4,3 3,7 3,2 2,8 

15 10 

317,4 308,0 298,6 289,5 280,9 272,9  51,9  58,1  65,0  72,9  82,0  92,5  6,1 

5,3 4,6 4,0 3,4 2,9 

210 

20 15 

371,1 359,9 348,5 337,2 326,1 315,5  52,1  58,5  65,7  73,7  82,8  93,2  7,1 

6,1 5,3 4,6 3,9 3,4 

 

PH (kW) 

PA (kW) 

TWUC (°C) 

TWUC (°C) 

C.O.P. 

Mod. 

TWIE 

(°C)

 

TWUE 

(°C) 

35 

40 

45 

50 

55 

60 

35 

40 

45 

50 

55 

60 

35 

40 

45 

50 

55 

60 

0 -5 

217,6 

212,4 

208,1 

   

56,5 

63,5 

71,7 

   3,8 

3,3 

2,9      

2 -3 

232,9 226,9 221,7 217,5   

 

56,7  63,6  71,7  81,1 

 

 

4,1  3,6 

3,1 2,7     

5 0 

257,7 250,4 243,8 238,2   

 

57,1  63,9  71,8  81,0 

 

 

4,5  3,9 

3,4 2,9     

7 2 

275,7 267,4 259,9 253,2 247,5   

57,4  64,1  71,9  81,1  91,7 

 

4,8  4,2 

3,6 3,1 2,7   

10 5 

304,7 295,0 285,9 277,6 270,2   

57,8  64,4  72,2  81,2  91,7 

 

5,3  4,6 

4,0 3,4 2,9   

13 8 

336,4 325,2 314,6 304,6 295,4 287,3  58,2  64,9  72,5  81,5  91,8  103,6  5,8  5,0 

4,3 3,7 3,2 2,8 

15 10 

359,1 346,9 335,1 324,0 313,6 304,2  58,5  65,2  72,8  81,7  91,9  103,7  6,1  5,3 

4,6 4,0 3,4 2,9 

240 

20 15 

421,7 406,7 392,1 377,9 364,4 351,7  59,2  65,9  73,6  82,3  92,4  103,9  7,1  6,2 

5,3 4,6 3,9 3,4 

 

PH (kW) 

PA (kW) 

TWUC (°C) 

TWUC (°C) 

C.O.P. 

Mod. 

TWIE 

(°C)

 

TWUE 

(°C) 

35 

40 

45 

50 

55 

60 

35 

40 

45 

50 

55 

60 

35 

40 

45 

50 

55 

60 

0 -5 

240,7 

234,5 

229,5 

   

62,8 

70,6 

79,8 

   3,8 

3,3 2,9       

2 -3 

257,9 250,7 244,7 239,9   

 

63,0  70,7  79,8  90,3 

 

 

4,1 

3,5 3,1 2,7     

5 0 

286,0 277,2 269,5 262,9   

 

63,3  70,9  79,8  90,2 

 

 

4,5 

3,9 3,4 2,9     

7 2 

306,2 296,3 287,4 279,6 273,2   

63,6  71,1  79,9  90,1  102,0   

4,8 

4,2 3,6 3,1 2,7   

10 5 

339,1 327,3 316,5 306,8 298,4   

64,2  71,5  80,1  90,1  101,8   

5,3 

4,6 4,0 3,4 2,9   

13 8 

375,0 361,4 348,6 336,8 326,2 317,0  64,7  71,9  80,4  90,3  101,7 115,0  5,8 

5,0 4,3 3,7 3,2 2,8 

15 10 

400,9 385,8 371,6 358,4 346,4 335,6  65,2  72,3  80,6  90,4  101,7 114,8  6,2 

5,3 4,6 4,0 3,4 2,9 

260 

20 15 

472,2 453,6 435,7 418,6 402,6 387,8  66,4  73,3  81,5  90,9  102,0 114,7  7,1 

6,2 5,3 4,6 3,9 3,4 

 

PH (kW) 

PA (kW) 

TWUC (°C) 

TWUC (°C) 

C.O.P. 

Mod. 

TWIE 

(°C)

 

TWUE 

(°C) 

35 

40 

45 

50 

55 

60 

35 

40 

45 

50 

55 

60 

35 

40 

45 

50 

55 

60 

0 -5 

267,8 

260,6 

253,3 

   

68,9 

77,3 

86,9 

   

3,9 3,4 2,9   

   

2 -3 

287,3 279,4 271,4 263,4   

 

69,1  77,5  87,1  98,1 

 

 

4,2 3,6 3,1 2,7     

5 0 

318,8 309,5 300,4 291,2   

 

69,5  77,8  87,4  98,3 

 

 

4,6 4,0 3,4 3,0     

7 2 

341,5 331,2 321,0 311,0 300,9   

69,8  78,0  87,5  98,5  111,0   

4,9 4,2 3,7 3,2 2,7   

10 5 

378,2 366,1 354,3 342,6 331,0   

70,3  78,4  87,8  98,7  111,1   

5,4 4,7 4,0 3,5 3,0   

13 8 

418,6 404,4 390,6 377,1 363,7 350,4  70,9  78,9  88,2  98,9  111,3 125,4 

5,9 5,1 4,4 3,8 3,3 2,8 

15 10 

447,7 432,0 416,7 401,8 387,1 372,5  71,4  79,2  88,4  99,1  111,4 125,4 

6,3 5,5 4,7 4,1 3,5 3,0 

300 

20 15 

528,8 508,8 489,3 470,4 451,9 433,6  72,8  80,3  89,3  99,7  111,7 125,6 

7,3 6,3 5,5 4,7 4,0 3,5 

 

PH (kW) 

PA (kW) 

TWUC (°C) 

TWUC (°C) 

C.O.P. 

Mod. 

TWIE 

(°C)

 

TWUE 

(°C) 

35 

40 

45 

50 

55 

60 

35 

40 

45 

50 

55 

60 

35 

40 

45 

50 

55 

60 

0 -5 

294,9 

286,6 

277,1 

   

75,0 

84,0 

94,1 

   

3,9 3,4 2,9   

   

2 -3 

316,7 308,0 298,2 286,9   

 

75,3  84,3  94,5  105,9   

 

4,2 3,7 3,2 2,7     

5 0 

351,7 341,9 331,3 319,5   

 

75,7  84,7  94,9  106,5   

 

4,6 4,0 3,5 3,0     

7 2 

376,8 366,0 354,7 342,3 328,5   

76,0  85,0  95,2  106,8 120,0   

5,0 4,3 3,7 3,2 2,7   

10 5 

417,4 404,9 392,1 378,5 363,7   

76,5  85,4  95,6  107,2 120,4   

5,5 4,7 4,1 3,5 3,0   

13 8 

462,1 447,5 432,7 417,4 401,3 383,8  77,1  85,8  95,9  107,5 120,8 135,8 

6,0 5,2 4,5 3,9 3,3 2,8 

15 10 

494,5 478,1 461,8 445,2 427,9 409,5  77,6  86,2  96,2  107,8 121,0 136,1 

6,4 5,5 4,8 4,1 3,5 3,0 

320 

20 15 

585,4 563,9 543,0 522,3 501,2 479,4  79,1  87,4  97,1  108,4 121,5 136,5 

7,4 6,5 5,6 4,8 4,1 3,5 

 

TWIE:

  

 

Source inlet water temperature 

(°C

)

 

TWUE:

  

 

Source outlet water temperature 

(°C

)

 

TWUC:  

 

User  outlet  water temperature 

(°C) 

(Dt=5°C) 

PH:  

 

Heating capacity 

(Kw 

PA:  

 

Compressors input power 

(Kw) 

Summary of Contents for WDH 039

Page 1: ...GROUND SOURCE HEAT PUMPS WDH SERIES TECHNICAL MANUAL ...

Page 2: ...WDH Ground source heat pumps MTWDHGB REV 072008 2 ...

Page 3: ...WDH Ground source heat pumps MTWDHGB REV 072008 3 ...

Page 4: ...WDH Ground source heat pumps MTWDHGB REV 072008 4 ...

Page 5: ...water pressure drops page 20 User side heat exchangers water pressure drops page 21 Refrigerant layouts page 22 Free cooling capacities page 26 Partial heat recovery capacity page 27 Water pumps available static pressure page 28 Operation limits page 29 Compressors capacity step controls page 30 Corrections tables page 30 Sound Data page 31 Safety Device Setting page 32 Electric data page 32 Inspe...

Page 6: ...ality of its products HOW TO KEEP THIS MANUAL The manual must be always with the unit it refers to It must be stored in a safe place away from the dust and moisture It must be accessible to all users who shall consult it any time they are in doubt on how to operate the equipment HIDROS SRL reserves the right to modify its products and related manuals without necessarily updating previous versions ...

Page 7: ...ation container in this manual It s strictly forbidden to remove and or camper with any safety device Any routine or not routine maintenance operation shall be carried out when the equipment has been shut down disconnected from electric and pneumatic power source and after its pneumatic system has been discharged Do not put your hands or insert screwdrivers spanners or other tools into moving part...

Page 8: ...operator to carry out the required operations safely Poor or too strong lighting can cause risks Ensure that work places are always adequately ventilated and that aspirators are working in good condition and in compliance with the requirements of the laws in force PERSONAL PROTECTIVE EQUIPMENT When operating and maintaining the WDH unit use the following personal protective equipment Equipment peo...

Page 9: ...urce side heat exchangers The source side heat exchangers are made of AISI 316 stainless steel braze welded plates type From size 039 to size 162 they are single water side circuit from the size 144 they are double circuit cross flow type The use of these kind of heat exchangers allows a massive reduction of the refrigerant charge of the unit compared to the traditional shell in tube ones and incr...

Page 10: ...han the required set point This unit is supplied standard with a reverse cycle valve to allow even the production of cold water in summer mode WDH SW5 UNIT WITH DOMESTIC HOT WATER PRODUCTION SW5 5 PIPE WATER CONNECTIONS This version is suitable to produce domestic hot water the unit is supplied with an ON OFF 3 way valve to deviate the water flow in a water accumulator the activation of the 3 way ...

Page 11: ...260 300 320 Refrigerant R407C R407C R407C R407C R407C R407C R407C R407C R407C R407C Heating capacity Kw 189 1 208 7 185 4 203 4 236 8 270 3 304 7 339 1 378 2 417 4 Compressors input power Kw 35 2 38 3 35 6 38 7 45 1 51 4 57 8 64 2 70 3 76 5 C O P W W 5 4 5 4 5 2 5 3 5 3 5 3 5 3 5 3 5 4 5 5 User water flow rate l h 32550 35900 32000 35000 40800 46500 52500 58400 65100 71800 Source water flow rate l...

Page 12: ...57 8 56 6 13 0 14 6 16 4 18 3 20 4 4 7 4 1 3 6 3 2 2 8 10 5 67 9 66 2 64 7 63 2 61 8 12 9 14 6 16 4 18 4 20 5 5 2 4 5 3 9 3 4 3 0 13 8 74 5 72 6 70 8 69 0 67 3 65 7 12 9 14 5 16 4 18 4 20 6 23 1 5 8 5 0 4 3 3 7 3 3 2 8 15 10 79 3 77 2 75 1 73 2 71 3 69 5 12 8 14 5 16 3 18 4 20 7 23 2 6 2 5 3 4 6 4 0 3 4 3 0 050 20 15 92 7 89 8 87 2 84 6 82 2 79 9 12 8 14 4 16 2 18 3 20 7 23 3 7 3 6 3 5 4 4 6 4 0 3...

Page 13: ...25 5 28 5 32 0 36 0 40 7 4 8 4 2 3 6 3 1 1 0 10 5 135 2 131 4 127 7 124 2 121 1 25 7 28 7 32 2 36 1 40 8 5 3 4 6 4 0 3 4 3 0 13 8 148 9 144 6 140 3 136 2 132 3 128 8 25 9 28 9 32 4 36 3 40 9 46 2 5 8 5 0 4 3 3 7 3 2 2 8 15 10 158 7 154 0 149 3 144 8 140 4 136 4 25 9 29 0 32 5 36 5 41 0 46 3 6 1 5 3 4 6 4 0 3 4 2 9 110 20 15 185 6 180 0 174 3 168 6 163 1 157 8 26 0 29 3 32 9 36 9 41 4 46 6 7 1 6 1 ...

Page 14: ...7 158 7 156 0 35 6 40 1 45 2 50 8 56 9 4 7 4 1 3 6 3 1 2 7 10 5 185 4 180 9 176 8 173 1 169 8 35 6 40 0 45 2 50 9 57 3 5 2 4 5 3 9 3 4 3 0 13 8 203 9 198 4 193 4 188 8 184 7 180 9 35 6 40 0 45 1 50 9 57 5 64 6 5 7 5 0 4 3 3 7 3 2 2 8 15 10 217 2 210 9 205 2 200 1 195 3 191 0 35 8 40 0 45 1 50 9 57 5 64 8 6 1 5 3 4 6 3 9 3 4 2 9 144 20 15 254 3 246 0 238 4 231 3 224 8 218 8 36 5 40 3 45 1 50 8 57 5...

Page 15: ...63 6 71 1 79 9 90 1 102 0 4 8 4 2 3 6 3 1 2 7 10 5 339 1 327 3 316 5 306 8 298 4 64 2 71 5 80 1 90 1 101 8 5 3 4 6 4 0 3 4 2 9 13 8 375 0 361 4 348 6 336 8 326 2 317 0 64 7 71 9 80 4 90 3 101 7 115 0 5 8 5 0 4 3 3 7 3 2 2 8 15 10 400 9 385 8 371 6 358 4 346 4 335 6 65 2 72 3 80 6 90 4 101 7 114 8 6 2 5 3 4 6 4 0 3 4 2 9 260 20 15 472 2 453 6 435 7 418 6 402 6 387 8 66 4 73 3 81 5 90 9 102 0 114 7 ...

Page 16: ... 82 5 78 1 71 9 64 4 9 9 10 8 11 9 13 4 15 8 19 2 PF kW PA kW TWIE C TWIE C Mod TWUC C 15 20 25 30 37 45 15 20 25 30 37 45 5 70 3 66 9 63 4 59 8 54 5 48 3 11 0 12 2 13 6 15 3 18 0 21 7 7 75 9 72 2 68 5 64 6 59 0 52 4 11 1 12 2 13 6 15 3 18 0 21 7 9 81 7 77 8 73 8 69 7 63 8 56 8 11 2 12 3 13 6 15 3 18 0 21 8 11 87 9 83 8 79 5 75 2 68 9 61 4 11 3 12 3 13 6 15 3 18 0 21 8 13 94 4 90 1 85 6 80 9 74 3 ...

Page 17: ...0 120 15 207 8 197 8 187 6 176 9 161 5 143 1 22 5 25 0 27 8 30 9 36 0 43 1 PF kW PA kW TWIE C TWIE C Mod TWUC C 15 20 25 30 37 45 15 20 25 30 37 45 5 161 3 152 3 143 1 133 7 120 2 104 3 25 0 27 4 30 2 33 5 39 1 47 3 7 174 4 164 9 155 1 145 1 130 7 113 9 25 3 27 6 30 4 33 6 39 2 47 3 9 188 3 178 1 167 7 157 1 141 9 124 0 25 6 27 9 30 6 33 8 39 4 47 3 11 203 0 192 2 181 2 169 9 153 8 134 8 25 9 28 2...

Page 18: ...5 9 67 6 190 15 316 7 302 7 288 2 273 1 250 9 224 2 36 3 39 4 43 3 48 0 56 1 67 7 PF kW PA kW TWIE C TWIE C Mod TWUC C 15 20 25 30 37 45 15 20 25 30 37 45 5 251 1 239 3 226 7 213 5 193 9 170 0 38 5 43 1 48 1 53 7 62 8 75 8 7 270 8 258 3 245 0 231 1 210 4 185 1 38 4 43 2 48 3 54 0 63 1 76 0 9 291 6 278 4 264 4 249 7 227 8 201 2 38 1 43 1 48 4 54 2 63 4 76 3 11 313 6 299 6 284 9 269 3 246 3 218 2 37...

Page 19: ...T WATER PRODUCTION OPTION The maximum hot sanitary water capacity and temperature can be calculated in the table at pages 11 12 13 14 depending on the source water temperature conditions The table below shows the capacity of the model WDH080 SW PH kW PA kW TWUC C TWUC C C O P Mod TWIE C TWUE C 35 40 45 50 55 60 35 40 45 50 55 60 35 40 45 50 55 60 0 5 74 2 73 0 72 0 19 6 22 0 24 5 3 8 3 3 2 9 2 3 7...

Page 20: ... 10 20 30 40 50 60 70 80 15000 20000 25000 30000 A WDH039 045 B WDH050 C WDH 060 070 D WDH 080 E WDH090 F WDH110 G WDH120 H WDH130 10 20 30 40 50 60 70 80 25000 30000 35000 40000 45000 50000 10 20 30 40 50 60 40000 50000 60000 70000 I WDH152 144 L WDH162 164 M WDH 190 N WDH 210 O WDH240 P WDH260 Q WDH300 R WDH320 I L M N O P E D C B A F G H Q R ...

Page 21: ... 50 60 70 80 90 20000 25000 30000 35000 A WDH039 045 B WDH050 C WDH 060 070 D WDH 080 E WDH090 F WDH110 G WDH120 H WDH130 20 30 40 50 60 70 80 90 100 35000 45000 55000 65000 20 30 40 50 60 70 80 90 100 35000 40000 45000 50000 55000 60000 65000 I WDH152 144 L WDH162 164 M WDH 190 N WDH 210 O WDH240 P WDH260 Q WDH300 R WDH320 E D C B A F G H I L M N O P Q R ...

Page 22: ...lve DSP Partial heat recovery VR One way valve EV Source heat exchanger VRV Reverse cycle valve EXV Thermostatic valve VSH High pressure safety valve FL Refrigerant filter YBP Hot gas by pass valve IV Sight glass YL Liquid line solenoid valve LR Liquid receiver YW Water solenoid valve MC Compressor Option SFC Free cooling heat exchanger WDH STANDARD CONFIGURATION VSH MC BTI EXV SFW BTO IV MC SLP S...

Page 23: ...FW VR YL IV FL SV VR EXV NO NC CH SV VRV BTO VSH MC SLP SHP MC SHP BTI CND EV VR YME CN SW YMI BTO BTI The WDH RV SW6 unit allows the production of cold and hot water independently from the operation mode of the unit heating or cooling During winter operation if domestic hot water is required it is temporarily stopped the water flow into the heating system During summer operation the domestic hot ...

Page 24: ...en the domestic hot water temperature is lower than the required set point VSH MC BTI EXV SFW BTO IV ØSC ØSS1 MC SLP ØDS2 ØDS1 SHP FL CH SV ØDC ØSS2 EV IO SHP YL CND BTI BTO TA LIMITE DI FORNITURA V3W SUPPLY LIMIT VR VR AAS MP During winter operation if domestic hot water is required it is temporarily stopped the water flow into the heating system The unit microprocessor gives always priority to t...

Page 25: ... give the total required load the compressors are OFF In this case the free cooling system works in substitution of the water chiller Free cooling mode Compressors operation The ground source probes can NOT grant enough cooling capacity to the system In this case the 3 way valve opens the way A and the water flow passes into the free cooling heat exchanger coil where it is pre cooled down to the m...

Page 26: ...SFC BTFC FREE COOLING VERSION CAPACITIES FC The nominal Free Cooling capacity is obtained when all compressors are OFF the ground source water inlet temperature is 10 C the user return water temperature is 20 C and the nominal water flow for each model is the one reported in the table Mod 039 045 050 060 070 080 090 110 Free cooling nominal capacity kW 24 28 33 37 41 50 58 66 Water consumption l h...

Page 27: ...10570 Water pressure drops kPa 13 18 18 25 11 15 19 25 Mod 300 320 Partial heat recovery nominal capacity kW 69 0 76 0 Water flow l h 11850 13000 Water pressure drops kPa 20 25 The nominal value refers to an source water temperature 10 5 C and user outlet water temperature 50 C Dt 5 C 0 8 0 9 1 1 1 1 2 1 3 1 4 1 5 40 41 42 43 44 45 46 47 48 49 50 The heat recovery capacity in different conditions ...

Page 28: ...000 15000 20000 40 60 80 100 120 140 160 180 200 220 15000 20000 25000 30000 A WDH039 045 050 060 070 B WDH080 090 C WDH110 120 D WDH130 80 100 120 140 160 180 200 220 240 30000 35000 40000 45000 50000 55000 60000 100 120 140 160 180 200 220 50000 60000 70000 80000 90000 E WDH 152 144 162 164 190 F WDH 210 240 260 G WDH300 320 B A C D F E G ...

Page 29: ...emperature Once the system is on temperature water temperature at the user heat exchanger inlet does not have to be less than 30 C lower values could cause incorrect working operation of the compressor and compressor failure may occur The maximum water outlet temperature at the user heat exchanger is 58 C Source heat exchanger water temperature The minimum evaporator water outlet temperature is 7 ...

Page 30: ... tables that shows the capacitieswith Dt5 C CORRECTION TABLES Operation with glycol Glicol percentage Freezing point C CCF IPCF WFCF PDCF 10 3 2 0 985 1 1 02 1 08 20 7 8 0 98 0 99 1 05 1 12 30 14 1 0 97 0 98 1 09 1 22 40 22 3 0 965 0 97 1 14 1 25 50 33 8 0 955 0 965 1 2 1 33 CCF Capacity correction factor IPCF Input power correction factor WFCF Water flow correction factor PDCF Pressure drops corr...

Page 31: ...76 8 67 7 103 9 90 62 SOUND LEVELS LS LOW NOISE VERSIONS Octave bands Hz Lw Lp 63 125 250 500 1K 2K 4K 8K Mod dB dB dB dB dB dB dB dB dB dB A dB A 039 LS 87 1 78 3 72 2 70 7 69 6 64 2 60 8 51 7 87 9 74 46 045 LS 87 1 78 3 72 2 70 7 69 6 64 2 60 8 51 7 87 9 74 46 050 LS 88 1 79 3 73 2 71 7 70 6 65 2 61 8 52 7 88 9 75 47 060 LS 89 1 80 3 74 2 72 7 71 6 66 2 62 8 53 7 89 9 76 48 070 LS 89 1 80 3 74 2...

Page 32: ...vicing the unit it is necessary to strictly follow the rules reported on this manual to conform to all the specifications of the labels on the unit and to take any possible precautions of the case Not observing the rules reported on this manual can create dangerous situations After receiving the unit immediately check its integrity The unit left the factory in perfect condition any eventual damage...

Page 33: ...164 190 210 240 260 300 320 380 430 500 1000 500 800 0 500 WARNING The equipment should be installed so that maintenance and or repair services be possible The warranty does not cover costs due to lifting apparatus and platforms or other lifting systems required by the warranty interventions WARNING All the maintenance operation must be done by TRAINED PEOPLE only WARNING Before any service operat...

Page 34: ... connection labelled USER WATER IN otherwise the heat exchangers may freeze WARNING It is compulsory to install on the heat exchangers water inlet connections a metallic filter with a mesh not larger than 1 mm THE FILTER IS MANDATORY the warranty will no longer be valid if it is not present or removed The filter must be kept clean so make sure it is clean after the unit has been installed and then...

Page 35: ...x 64 mm WARNING The remote control panel is connected to the water chiller by 2 wires of 2 5 mm2 section Power supply cables must be separated by remote control wires Maximum distance 50 metres WARNING The remote control panel can not be installed in area in with strong vibrations corrosive gases excess of dirtness or high humidity level Leave free the area near the cooling openings ...

Page 36: ...y made START UP Before start up Check that all power cables are properly connected and all terminals are hardly fixed The voltage at the phase R S T is the one shown in the unit labels Check that there is not any refrigerant leakage Check that crankcase heaters are powered correctly Check that all water connections are properly installed and all indications on unit labels are observed The system m...

Page 37: ...shell and discharge line of compressor are usually at high temperature level Be very careful when operating in their surroundings Aluminium coil fins are very sharp and can cause serious wounds Be very careful when operating in their surroundings After servicing operation close the unit with cover panels fixing them with locking screws It is a good rule to carry on periodic checks in order to veri...

Page 38: ...ring points at the end of their operating life Refrigerant R407C is mentioned among controlled substances and for this reason it must be subjected to said norms A particular care is recommended during service operations in order to reduce as much as possible any refrigerant loss UNIT OUT OF SERVICE Once the unit is arrived at the end of its life and needs to be removed or replaced the following op...

Page 39: ......

Page 40: ......

Page 41: ......

Page 42: ...WDH Ground source heat pumps MTWDHGB REV 072008 39 ...

Page 43: ......

Page 44: ... Tel 390 49 9731022 Fax 390 49 5806928 I In nf fo o h hi id dr ro os s i it t www hidros it Technical data shown in this booklet are not binding HIDROS SRL shall have the right to introduce at any time whatever modifications necessary to the improvement of the product ...

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