Carrier RVS Connect The Blue Wire To H For High Speed Fan, 50RHC,RVC Blower Speed Selection

AIR COIL — To obtain maximum performance, clean the air coil before starting the unit. A ten percent solution of dish- washer detergent and water is recommended for both sides of the coil. Rinse thoroughly with water.

PSC (Permanent Split Capacitor) Blower Speed Selection — All water source heat pumps are factory set to deliver rated airflow at nominal static (0.15 in. wg) on medium speed. Where higher static is needed, high speed can be utilized (0.4 to 0.5 in. wg). Low speed will deliver approximately 85% of rated airflow (0.10 in. wg). The PSC blower fan speed can be changed on all units by swapping wires connected to the relay contacts that control the fan. See Fig. 27.

FOR 50RHR,RVR,RHS,RVS AND RDS UNITS — On the control, the black wire is connected to High, blue wire is connected to Medium and red wire is connected to Low. See Fig. 19-22.

NOTE: Available airflows for all units are shown in Tables 8-13.

FOR 50RHC,RVC UNITS — The PSC blower fan speed can be changed by moving the blue wire on the fan motor ter- minal block to the desired speed as shown in Fig. 27. The 50RHC,RVC units are designed to deliver rated airflow at nominal static (0.15 in. wg) on medium speed (factory setting) and rated airflow at a higher static (0.4 to 0.5 in. wg) on high

CONNECT THE BLUE WIRE TO:

H FOR HIGH SPEED FAN

M FOR MEDIUM SPEED FAN L FOR LOW SPEED FAN

BLU

MEDIUM FACTORY SETTING

H M L

FAN MOTOR

Fig. 27 — 50RHC,RVC Blower Speed Selection

speed for applications where higher static is required. Low speed will deliver approximately 85% of rated airflow at

0.10in. wg. An optional ‘High Static’ blower is available by using the special option code in the model nomenclature.

Table 8 — 50RHR,RVR Blower Performance

50RHR,RVR	RATED	MIN	FAN								AIRFLOW (Cfm)
									External Static Pressure (in. wg)
UNITS	CFM	CFM	SPEED
				0.00	0.05	0.10	0.15	0.20		0.25	0.30	0.35	0.40	0.45	0.50	0.60	0.70	0.80	0.90
006*	200	150	HI	300	290	280	270	260		250	240	230	210	190	160	110
			MED	240	230	220	210	200		190	180	160	140
														130	110
			LO	220	210	200	200	190		180	160	150		130
													130
009			HI	450	440	430	420	400		390	370	350	320	310	300	230
	300	225	MED	410	400	390	380	360		350	340	330	310	290	270
			LO	370	360	350	340	320		320	310	300	280	260	240
012			HI	470	460	450	440	430		420	400	390	380	370	350	330	290
	375	300	MED	410	400	380	370	360		360	350	340	330	320	310
																290
			LO	340	330	320	320	310		310	300	300	290
														290
015			HI	750	730	710	700	680		660	630	600	570	540	500	400
	500	375	MED	660	640	620	610	590		570	550	530	500	470	440
																370
			LO	580	570	550	540	520		500	480	460	430	400
															370
019			HI	850	820	790	770	740		710	670	640	600	560	520	450
	600	450	MED	700	680	660	640	620		590	560	530	500	470
															440
			LO	600	580	560	540	510		490	460	460
024			HI	980	950	920	890	860		830	790	760	720	680	640	540
	800	600	MED	850	830	800	770	740		720	690	660	620			460
														580	540
			LO	700	680	660	650	630		610				500	470
											590	560	530
030			HI	1330	1300	1260	1230	1190		1150	1100	1050	1000	960	920	830
	1000	750	MED	1210	1190	1160	1130	1100		1050	1000	970	930	880	830
																720
			LO	1050	1030	1010	980	950		920	890	850	810	770
															730
036			HI	1580	1540	1500	1470	1440		1410	1370	1330	1280	1240	1200	1090	940
	1200	900	MED	1400	1370	1340	1310	1280		1250	1220	1190	1150	1100	1050	920
			LO	1100	1080	1060	1040	1010		980	950	920
													890	890
042			HI	1790	1760	1730	1700	1660		1630	1590	1550	1510	1480	1440	1370	1270	1120
	1400	1050	MED	1500	1490	1470	1450	1420		1400	1380	1350	1320	1300	1270	1180	1070
			LO	1110	1100	1090	1080	1060		1050
											1040
048			HI	1910	1880	1840	1800	1750		1730	1700	1650	1600	1540	1480	1380	1300	1180
	1600	1200	MED	1830	1790	1740	1700	1660		1620	1570	1540	1500	1450	1400	1320	1210	1120
			LO	1700	1670	1640	1600	1560		1530	1490	1460	1430	1390	1340	1250
																	1170
High Static	1600	1200	HI	2180	2140	2090	2060	2030		1990	1940	1870	1800	1750	1690	1580	1440	1270	990
			MED	2080	2050	2020	1970	1920		1870	1820	1740	1650	1640	1620	1530	1320	1220	910
048
			LO	1990	1950	1910	1880	1840		1810	1770	1710	1650	1620	1580	1460	1340
																		1180
060			HI	2230	2220	2200	2160	2120		2090	2060	2040	2010	1990	1960	1880	1790	1660
	2000	1500	MED	2040	2020	1990	1970	1940		1920	1890	1860	1830	1810	1780	1710	1620
			LO	1840	1830	1810	1800	1780		1760	1730	1700	1670	1640	1600	1510

LEGEND

Shaded areas are below minimum CFM. This data is provided for troubleshooting information only.

CFM — Cubic Feet Per Minute

*Size 006 available in 50RHR units only.

NOTES:

1.Units factory shipped on medium speed. Other speeds require field selection.

2.All airflow is rated on 208 v operating with wet coil and clean air filter.

3.All units ARI/ISO/ASHRAE 13256-1 rated on high fan speed.

4.Only two-speed fan (H & M) available on 575-v units.

27