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Table of Contents
Related Manuals for Lennox HP23-141
Summary of Contents for Lennox HP23-141
- Page 1 RQO\ IRU LQVWDOODWLRQ ZLWK VSHFLDOO\ PDWFKHG LQGRRU FRLOV / OLQH VHWV DQG UHIULJHUDQW FRQWURO GHYLFHV DV Refer to Lennox engineering GHVLJQDWHG E\ /HQQR[ 5(7$,1 7+(6( ,16758&7,216 handbook for expansion valve kits which must be )25 )8785( 5()(5(1&(...
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Page 2: Top View
HP23 UNIT DIMENSIONS- -INCHES (MM) INLET FAN GUARD Model No. HP23-141, HP23-211, 26-3/8 26-3/8 16-7/8 INLET INLET HP23-261 HP23-311, 26-3/8 30-3/8 16-7/8 HP23-411-413 HP23-461-463, HP23-511-513, 31-5/16 34-3/8 21-3/16 HP23-651-653 INLET TOP VIEW DISCHARGE CONTROL ELECTRICAL CONNECTIONS BOTTOM OF COMPRESSOR CONTROL BOX... -
Page 3: Setting The Unit
Slab Mounting- -Figure 2 SETTING THE UNIT When installing unit at grade level, top of slab should Heat pump units operate under a wide range of be high enough above the grade so that water from weather conditions; therefore, several factors must be considered when positioning the outdoor unit. - Page 4 If unit coil cannot be mounted away from prevailing 2- - Route power and ground wires from disconnect winter winds, a wind barrier should be constructed. switch to unit. Electrical openings are provided Size barrier at least the same height and width as out- under the control box cover.
-
Page 5: Refrigerant Metering Device
(sweat connections) to the CAN BE INSERTED AND READ EASILY indoor evaporator coil (typically flare connections). THERMOMETER WELL- -MALE Use Lennox L10 series line sets as shown in table 1 or LIQUID LINE- -FEMALE LIQUID CONNECTION use field- -fabricated refrigerant lines. -
Page 6: Expansion Valve Systems
Expansion Valve Systems 7$%/( ,1'225 &+(&. $1' (;3$16,21 9$/9( .,76 ([SDQVLRQ YDOYHV HTXLSSHG ZLWK HLWKHU k&KDWOLIIl RU IODUH 02'(/ .,7 180%(5 W\SH ILWWLQJV DUH DYDLODEOH IURP /HQQR[ 5HIHU WR WKH LQGRRU FRLO LQVWDOODWLRQ LQVWUXFWLRQV RU WKH HQJLQHHULQJ KDQGERRN +3 /% %- /% %( +3 ... -
Page 7: Liquid Line Service Valve
CAUTION Liquid Line Service Valve ( Figure 8) The valve is equipped with a service port. There is no The service port cap is used to seal the liquid schrader valve installed in the liquid line service port. A line service valve. A schrader valve is service port cap is supplied to seal off the port. - Page 8 3- - Replace stem cap. Tighten finger tight, then tighten VAPOR LINE SERVICE VALVE (VALVE OPEN) an additional 1/6 turn. SNAP RING INSERT HEX /($. 7(67,1* KNIFE EDGE WRENCH HERE SEAL INLET After the line set has been connected to the indoor (FROM INDOOR COIL) and outdoor units, the line set connections and in- door unit must be checked for leaks.
- Page 9 (9$&8$7,1* 7- - Reconnect the manifold gauge to the vacuum pump, turn the pump on and continue to evacuate Evacuating the system of non- -condensables is criti- the line set and indoor unit until the absolute pres- cal for proper operation of the unit. Non- -condens- sure does not rise above 5mm of mercury within a ables are defined as any gas that will not condense 20 minute period after shutting off the vacuum...
- Page 10 TABLE 5- - When thermostat demand has been satisfied, Ozs. per 5 ft. (ml per mm) adjust switch to cooling mode with a set point of 68 Liquid Line Set Diameter from 20 ft. (6096 mm) line set* When pressures have stabilized, place the ther- mometer in thermometer well and record the liq- 1/4 in.
-
Page 11: Compressor Oil Charge
Compressor Oil Charge time, record the liquid line temperature and the liquid line pressure reading. Refer to Lennox Cooling Service Handbook for cor- Using a temperature/pressure chart for R22, de- 4- - rect procedure to check and add compressor oil. Heat termine the saturation temperature for the liquid line pressure reading. -
Page 12: Crankcase Heater
The defrost thermostat is mounted on the liquid line 1- Clean or change filters. between the check valve/drier and the distribu- 2- Lennox blower motors are pre- -lubricated and per- tor.When defrost thermostat senses 35 F (2 C) or manently sealed. No further lubrication is neces- cooler, its contacts close and send a signal to the de- sary.