Page 2 - INSTALLATION
2 ELECTRICAL SHOCK HAZARD Failure to follow this warning could cause in personal injury or death.Before performing service or maintenance operations on unit, always turn off main power switch to unit and install lockout tag. Unit may have more than one power switch. ! WARNING UNIT OPERATION AND SAFE...
Page 5 - Table 1C — 524J*25H Physical Data, English — Heat Pump Units; Throwaway — Factory Supplied
5 Table 1C — 524J*25H Physical Data, English — Heat Pump Units UNIT 524J* 25H NOMINAL CAPACITY (Tons) 20 OPERATING WEIGHT (lb) Base Unit with TXV 720 Plenum 140 FANS Qty...Diam. (in.) 2...15 Nominal Airflow (cfm) 8000 Airflow Range (cfm) 6000 --- 10000 Nominal Motor Hp (Standard Motor) 208/230 --- 3...
Page 6 - Table 1D — 524J*25H Physical Data, SI — Heat Pump Units
6 Table 1D — 524J*25H Physical Data, SI — Heat Pump Units UNIT 524J* 25H NOMINAL CAPACITY (kW) 70 OPERATING WEIGHT (kg) Base Unit with TXV 326 Plenum 44 FANS Qty...Diam. (mm) 2...381 Nominal Airflow (L/s) 3775 Airflow Range (L/s) 2831 --- 4719 Nominal Motor kW (Standard Motor) 208/230 --- 3 --- 60 a...
Page 8 - UNIT
8 6. 40RUS may require alternate or additional field favricated poping access holes UNIT 524J*28A524J*30A lb (kg) 1050 (477)1062 (482) LEGEND TXV — Thermostatic Expansion Valve NOTES:1. Dimensions in [ ] are in millimeters. 2. Direction of airflow. 3. Recommended clearance: • Rear: 3 in. [914 mm] (2...
Page 9 - A A; POSITION NUMBER
9 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 5 2 4 J E 2 5 A 0 0 0 A 2 0 A A A _____________ Model Type Packaging 524J = Bryant Fan Coil Puron r R --- 410A Refrigerant A = Standard Type of Coil Service Options B = High Capacity DX Coil H = DX Coil for Heat Pump Duty A = Standard DX Coil A = None B = ...
Page 10 - IMPORTANT; OVERHEAD SUSPENSION ACCESSORY — UNIT SIZE 25
10 Typical positioning and alternate return air locations are shown in Fig. 6. Alternate return air locations can be used by moving the unit panel from the alternate return air location to the standard return air location. Refer to overhead suspension accessory drawing (Fig. 7) for preferred suspens...
Page 12 - V ERTI CA L I NS TALL ATI ON
12 LEGEND: TXV – Thermostatic Expansion ValveNOTE: Component location arrangemetshown for field installation of sight glasses, solenoid valves, filter driers, and TXV sensing bulbs.The TXVs and equilizer lines are factory installed. UPPER SPLIT AIRFLOW LOWER SPLIT AIRFLOW 15 DIAMS MIN 10 DIAMS 8 DIA...
Page 13 - Table 2 – Factory--Installed Nozzle and Distributor Data; Table 3 – Fitting Requirements
13 Table 2 – Factory--Installed Nozzle and Distributor Data UNIT COIL TYPE STD TXV Qty...Part No. DISTRIBUTOR Qty...Part No. FEEDER TUBES PER DISTRIBUTOR ] Qty...Size (in.) NOZZLE Qty...Part No. 524J*25A 4 Row 2...BBIZE --- 8 --- GA 2...D196 --- 18 --- 3 / 16 18... 3 / 16 2...G6 524J*28A 4 Row 2...B...
Page 14 - NOTE
14 Table 3 — Fitting Requirement (cont) UNIT ACCESS HOLE NO. ] CONNECTION TYPE CIRCUIT FITTINGS REQUIRED † (in.) 524J*30A 1 Suction Lower 1 3 / 8 Street Elbow 1 3 / 8 Nipple, 3 L 1 3 / 8 Long Radius Elbow 2 Liquid Lower 5 / 8 Street Elbow 5 / 8 Nipple, 7 3 / 4 L 5 / 8 Long Radius Elbow 3 Liquid Uppe...
Page 15 - ELECTRICAL SHOCK HAZARD; FIRE HAZARD; WARNING
15 Fan Motors and Drives -- Motor and drive packages are factory installed in all units. The motor and drive packages consist of the following items: 1 — fan motor 1 — adjustable motor pulley 1 — fan pulley 2 — matched fan belts (524J*25A--30A units) For instructions on changing fan rotation, changi...
Page 16 - Table 4 – Electrical Data, Standard Motors; Table 5 – Electrical Data, Alternate Motors; Legend and Notes for Tables 4 and 5
16 Table 4 – Electrical Data, Standard Motors UNIT V --- PH --- Hz { VOLTAGE LIMITS FAN MOTOR POWER SUPPLY Hp (kW) FLA Minimum Circuit Amps MOCP 524J*25A 524J*25H 208/230 --- 3 --- 60 187 --- 253 5.0 (3.73) 14.7/13.6 18.4/17.0 30/25 460 --- 3 --- 60 414 --- 506 5.0 (3.73) 6.8 8.5 15 575 --- 3 --- 60...
Page 17 - Table 6 – Fan Contactor Coil Data; UNIT OPERATION HAZARD; CAUTION
17 C10695 Fig. 17 -- Unit Wiring Table 6 – Fan Contactor Coil Data UNIT 524J* VOLTAGE (vac) MAXIMUM HOLDING VA 25A, 25H, 28A, 30A 24 10 Connecting Ductwork -- Refer to the System Design Manual for the recommended design and layout of ductwork. Fig. 18 shows recommended duct connection to units with ...
Page 18 - Fig. 18 -- Typical Fan Discharge Connections for Multiple Fan Units
18 C10696 Fig. 18 -- Typical Fan Discharge Connections for Multiple Fan Units C10697 Fig. 19 -- Duct Flange Installation 524J
Page 19 - Adjusting TXV for Superheat —; INSTALLER / INSTALLATEUR; SERVICE
19 START--UP Before starting unit, check the following and correct as necessary: S Is unit solidly supported? S Is fan adjusted for speed and pulley alignment? S Are pulleys, motor, and bearings securely mounted? S Are there any loose parts that will rattle or vibrate? S Is condensate drain pan pitc...
Page 20 - Table 7 – Lubricant Data; Multifak 2
20 Fan Motor Lubrication -- Fan motor supplied with unit is permanently lubricated and requires no further lubrication. Fan Shaft Bearings -- Size 25--30 units have pillow--block bearings (Fig. 22) that must be lubricated with suitable bearing grease approximately every 3 months. See Table 7 for sui...
Page 29 - Table 10B -- 524J Standard Fan Performance Data —
29 Table 10B -- 524J Standard Fan Performance Data — 0--600 kPa External Static Pressure — SI UNIT AIRFLOW (L/s) EXTERNAL STATIC PRESSURE (kPa) 0 50 100 150 200 250 300 r/s kW r/s kW r/s kW r/s kW r/s kW r/s kW r/s kW 524J*25A 524J*25H 2830 8.86 0.94 9.48 1.04 10.65 1.26 11.84 1.53 13.01 1.85 14.10 ...
Page 32 - Legend and Notes for Tables 10A and 10C; FACTORY-SUPPLIED PRESSURE DROP — ENGLISH; FACTORY-SUPPLIED PRESSURE DROP — SI
32 Legend and Notes for Tables 10A and 10C LEGEND Bhp --- Brake Horsepower Input to Fan ESP --- External Static Pressure NOTES:1. Maximum allowable fan speed for size 25 units is 1200 rpm . Maximum allowable fan speed for size 28 and 30 units is 1100 rpm. 2. Fan performance is based on deductions fo...
Page 35 - I. PRELIMINARY INFORMATION; ADDITIONAL ACCESSORIES; OUTDOOR UNIT
35 START--UP CHECKLIST (SPLIT SYSTEMS WITH 524J UNITS) I. PRELIMINARY INFORMATION OUTDOOR: MODEL NO. INDOOR: MODEL NO. SERIAL NO. SERIAL NO. ADDITIONAL ACCESSORIES II. PRE--START--UP OUTDOOR UNIT IS THERE ANY SHIPPING DAMAGE? (Y/N)IF SO, WHERE: WILL THIS DAMAGE PREVENT UNIT START--UP? (Y/N)CHECK POW...
Page 36 - CHECK VOLTAGE IMBALANCE; COMP A1
36 CHECK VOLTAGE IMBALANCE LINE-TO-LINE VOLTS: AB V AC V BC V (AB + AC + BC)/3 = AVERAGE VOLTAGE = V MAXIMUM DEVIATION FROM AVERAGE VOLTAGE = V VOLTAGE IMBALANCE = 100 X (MAX DEVIATION)/(AVERAGE VOLTAGE) = IF OVER 2% VOLTAGE IMBALANCE, DO NOT ATTEMPT TO START SYSTEM! CALL LOCAL POWER COMPANY FOR ASS...