Page 2 - INSTALLATION; TABLE 1 - UNIT APPLICATION DATA; TABLE 2 - UNITS WEIGHTS
LIMITATIONS These units must be installed in accordance with the followingnational and local safety codes. 1. National Electrical Code ANSI/NFPS No. 70 or Canadian Electrical Code Part 1, C22.1 (latest editions). 2. Local plumbing and waste water codes and other applica- ble local codes. Refer to Ta...
Page 3 - Unitary Products Group
CLEARANCES All units require certain clearances for proper operation andservice. Refer to Figure 3 for the clearances required for com-bustion, construction, servicing and proper unit operation. WARNING: Do not permit overhanging structures or shrubs to obstruct the condenser air discharge outlet. D...
Page 4 - PHYSICAL DATA; POWER WIRING; UNIT TERMINAL STRIP; CONTROL WIRING
66297-YIM-C-0205 4 Unitary Products Group TABLE 3 - PHYSICAL DATA MODELS BHH 018 024 030 036 042 048 060 INDOOR BLOWER CENTRIFUGAL BLOWER (Dia. x Wd. in.) 9 X 6 10 X 8 10 X 8 10 x 8 11 x 10 11 x 10 11 x 10 FAN MOTOR HP (Three Speed) ! " ! " ! " 1 INDOOR COIL ROWS DEEP 2 2 3 3 3 3 3 FINS ...
Page 12 - - SIDE AND BOTTOM SUPPLY AIR BLOWER PERFORMANCE
12 Unitary Products Group 66297-YIM-C-0205 MODEL NO. BHH MOTOR SPEED EXTERNAL STATIC PRESSURE - IWG .10 .20 .30 .40 .50 .60 .70 .80 .90 1.00 CFM W A TTS CFM W A TTS CFM W A TTS CFM W A TTS CFM W A TTS CFM W A TTS CFM W A TTS CFM W A TTS CFM W A TTS CFM W A TTS 018 HI MED LOW —— 741 —— 226 —— 686 —— ...
Page 13 - ADDITIONAL STATIC PRESSURE RESISTANCE
Unitary Products Group 13 66297-YIM-C-0205 TABLE 21 - ADDITIONAL STATIC PRESSURE RESISTANCE FIG. 3 - CLEARANCES DESCRIPTION RESISTANCE, IWG CFM 500 600 700 800 900 1,000 1,100 1,200 1,300 1,400 1,500 1,600 1,700 1,800 1,900 2,000 Wet Indoor coil 0.01 0.01 0.01 0.02 0.01 0.02 0.03 0.04 0.04 0.03 0.04...
Page 14 - BACK; UNIT SIZE; FRONT
14 Unitary Products Group 66297-YIM-C-0205 FIG. 4 - DIMENSIONS OUTDOOR COIL 15 4 BACK SIDE RETURN AIR OPENING SIDE SUPPLY AIR OPENING BOTTOM RETURN AIR OPENING 15 " & ! & ! ! & ! & ' $ ! & ! " ! " ! " ! 15 " " BOTTOM SUPPLY AIR OPENING ! & ! !" ...
Page 15 - SEQUENCE OF OPERATION
Anti-short Cycle Timer This unit has an anti-short cycle timer built in to the defrost con-trol. This timer will not permit the compressor to start within fiveminutes after the completion of the last cycle or power interrup-tion. To bypass the anti-short cycle feature, short the “TEST”pins together ...
Page 16 - When the demand for cooling has been satisfied, the 24; HEATING OPERATION; When the fan switch on the thermostat is in the “ON” posi-; SECURE OWNER'S APPROVAL
gized. Power is supplied to the compressor and outdoor fanmotor, and the reversing valve switched to the cooling posi-tion. When the fan switch on the thermostat is in the “AUTO”position the indoor blower motor is energized at the coolingairflow. 3. When the demand for cooling has been satisfied, th...
Page 17 - NORMAL MAINTENANCE; WARNING: Prior to any of the following maintenance proce-; MAINTENANCE
Unitary Products Group 17 66297-YIM-C-0205 NORMAL MAINTENANCE WARNING: Prior to any of the following maintenance proce- dures, shut off all power to the unit, to avoid per-sonal injury. Periodic maintenance consists of changing or cleaning filtersand general cleaning of the outdoor coil. FILTERS - I...
Page 18 - TROUBLESHOOTING; WARNING: Troubleshooting of components necessarily re-; ELEMENTARY DIAGRAM
18 Unitary Products Group 66297-YIM-C-0205 TROUBLESHOOTING WARNING: Troubleshooting of components necessarily re- quires opening the electrical control box with thepower connected to the unit. Use extreme carewhen working with live circuit! Check the unit nameplate for the correct range before makin...
Page 19 - TYPICAL WIRING DIAGRAM LEGEND (See page 18); CAUTION - OPEN ALL DISCONNECTS
Unitary Products Group 19 66297-YIM-C-0205 CCH CRANKCASE HEATER (OPTIONAL) PTCR START ASSIST (OPTIONAL DEVICE) HTR 4 ELECTRIC HEATER (OPT. ACCSSRY: 15, 20 &25 KW ELEC HEAT) HTR 5 & 6 ELECTRIC HEATER (OPT. ACCSSRY: 20 & 25 KW ELEC HEAT) K5 RELAY ELECTRIC HEATER, 24 VDC COIL (25 KW ELEC HE...
Page 21 - TYPICAL WIRING DIAGRAM LEGEND (See page 20); C A U T I O N - O P E N A L L D I S C O N N E C T S
Unitary Products Group 21 66297-YIM-C-0205 M2 CONTACTOR, ELECTRIC HEAT, 230V COIL CCH CRANKCASE HEATER (OPTIONAL) COMPR COMPRESSOR S3/P3 SOCKET/PLUG CONNECTION ON FAN CONTROL BOARD, LINE VOLTAGE S2/P2 SOCKET/PLUG CONNECTION ON FAN CONTROL BOARD, LOW VOLTAGE LS LIMIT SWITCH, ELECTRIC HEAT F1,F2,F3 FU...
Page 23 - TYPICAL WIRING DIAGRAM NOTES (See page 22)
Unitary Products Group 23 66297-YIM-C-0205 S 3 / P 3 S O C K E T / P L U G C O N N E C T I O N O N C O N T R O L B O A R D , L O W V O L T A G E S 2 / P 2 S O C K E T / P L U G C O N N E C T I O N O N C O N T R O L B O A R D , L O W V O L T A G E L S L I M I T S W I T C H , E L E C T R I C H E A T (...
Page 26 - E L E M E N T A R Y D I A G R A M
26 Unitary Products Group 66297-YIM-C-0205 L 2 L 1 P O W E R S U P P L Y W / O U T E L E C H E A T 4 6 0 - 3 - 6 0 O R 5 7 5 - 3 - 6 0 U S E C O P P E R C O N D U C T O R S O N L Y G N D L U G P O W E R S U P P L Y W / E L E C H E A T 4 6 0 - 3 - 6 0 O R 5 7 5 - 3 - 6 0 ( S E E D E T A ) ( S E E D E...