Assessments - 3, GPA: 3.3
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Facilidade de uso
Setting the wall control to low will activate the continuous mode. OneTouch Control: Allows control of ventilator with the touch of a button. This control will operate as a main wall control. The OneTouch will operate the unit in Intermittent Mode (20 minutes per hour), continuous low speed, continuous high speed, and off. Automatic Defrost Cycle Features All models offer a non- --electric defrost cycle feature which prevents frost and ice buildup within the heat recovery core. When the outside air temperature falls below 23_F(- --5_C) it is electronically sensed and the dampers close the outside air ports. This allows warm indoor air to recirculate within the heat recovery core. The frequency of this cycle increases as the outside air temperature decreases. Model25_FTO55_F(---5_CTO---15_C) 4_FTO---17_F(---15.6_CTO---27.3_C) BELOW---18_F(---27.8_C) ModelDEFROST*EXCHANGE{DEFROST*EXCHANGE{DEFROST*EXCHANGE{ HRVBBLHA6Minutes60Minutes6Minutes32Minutes6Minutes20MinutesHRVBBSHA6Minutes60Minutes6Minutes32Minutes6Minutes20MinutesHRVBBSVA6Minutes60Minutes6Minutes32Minutes6Minutes20Minutes * All defrost times are in the standard mode (as shipped) { Time between defrost when within specified temperature range 4 B (114.3) D C 4 3 1 2 4 1/2 in. 2 3/16 in. (56.2) 4 PLCS 1 in. (25.4) 2 PLCS 16 3/4 in. (425.5) 30 1/4 in. (768.3) A 12 in. (381.0) G E F 5 7/8 in. Dia (149.2) 4 PLCS HRV NOTES: 1. FRESH AIR FROM HRV TO HOUSE 2. FRESH AIR FROM OUTSIDE TO HRV 3. STALE AIR FROM HOUSE TO HRV 4. STALE AIR FROM HRV TO OUTSIDE A05228 ABCDModelin.mmin.mmin.mmin.mmHRVBBLHA115017-1/4438.210-1/2266.74-1/2114.311279.4HRVBBLHA125017-1/4438.210-1/2266.74-1/2114.311279.4EFGModelin.mmin.mmin.mmHRVBBLHA11507-3/4196.94-3/8111.17-3/4196.9HRVBBLHA12507-3/4196.95-13/16147.67-3/4196.9Fig.1--HRVBBLHAUnitDimensions 5 A05426 Fig. 2 - --HRVBBSHA Unit Dimensions HRV A05425 Fig. 3 - -- HRVBBSVA Unit Dimensions Physical data ModelHRVBBLHA1150HRVBBLHA1250HRVBBSVA1100HRVBBSHA1100PortLocationsSideSideTopSideCoreTypePolypropylenePolypropylenePolypropylenePolypropyleneCoreTypePolypropyleneCrossFlowPolypropyleneCrossFlowPolypropyleneCrossFlowPolypropyleneCrossFlowWeight—lb(kg)65(29.5)73(33.2)4242ShippingWeight—lb(kg)75(34)83(37.6)4848ShippingDimensions(in.) HeightWidthDepth23-1/1636-1/1617-13/1622-15/1635-1/1622-15/1625.517.523.030.015.023.0 6 Physical data (continued) ModelHRVBBLHA1150HRVBBLHA1250HRVBBSVA1100HRVBBSHA1100Capacity—CFM@ 0.5-0.3ESP(in.wc) 130---168191---21099---10799---107Efficiency(Sensible)—Percent65656666Efficiency(Sensible)Percent32_F(0_C) --13_F(--25_C) 6565656066666666Efficiency(Latent)—Percent@alltemperatures0000HeatCoreExchangeArea— cuft(cum)120(3.4)166(4.7)55(5.1)55(5.1) ModelHRVBBLHA1150HRVBBLHA1250HRVBBSVA1100HRVBBSHA1100Voltage120120120120MaxPower—watts150218150150MaxAmps1.41.91.31.3 HEATING LOAD BTU Methods to Size HRVs Method 1: 1. Calculate cubic feet of occupied space 2. Multiply by recommended air changes per hour (AC/h) 3. Divide by 60 minutes per hour to convert to CFM Example: 2000 sq ft with 8 ft ceiling 0.35 air changes per hour (AC/h) (2000 sq ft x 8 ft ceiling x 0.35 AC/h) / 60 min/h = 93.3 CFM Method 2: 1. Multiply number of people times 15 CFM/person 2,322 2. Multiply number of bathrooms times 20 CFM/each OutsideTemp°FHeat Load (BTUh) @ Inside Design Temp 72°FHRVBBLHA1150 –25 4,688 –20 4,466 –15 4,598 –10 4,334 –5 4,069 0 3,805 5 3,541 10 3,502 15 3,220 20 2,938 25 2,950 30 2,636 3540 2,009 3. Add25CFM for kitchen The heating load chart shows the heating loads in BTUh for a range of winter design temperatures for each model of ventilator. Example: 2 people EXAMPLE: The heating design temperature for Milwaukee, 2 bathrooms WI, is - --4_F.At - --5_F, the additional heating load of the 1 kitchen HRVBBLHA1250 is 8417 BTUh. This additional load should be taken into consideration when sizing the heating equipment. (2 x 15) + (2 x 20) + 25 = 95 CFM Additional heating and cooling load charts Although the ventilators process the outside air before it enters the home, additional heating and cooling loads need to be cons...
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