Bryant 551J - Manuals

Bryant 551J – Manual in PDF format online.

Manuals:

Manual

Manual Bryant 551J

Summary

Page 2 - ELECTRICAL SHOCK HAZARD; UNIT OPERATION AND SAFETY HAZARD; WARNING; PERSONAL INJURY AND ENVIRONMENTAL; WARNING; CUT HAZARD; CAUTION

2 ELECTRICAL SHOCK HAZARD Failure to follow this warning could cause personal injury or death.Before performing service or maintenance operations on unit, turn off main power switch to unit and install lockout tag. Ensure electrical service to rooftop unit agrees with voltage and amperage listed on ...

Page 5 - INSTALLATION; Jobsite Survey; Step 1 — Plan for Unit Location; NOTE; Step 2 — Plan for Sequence of Unit Installation; Table 1 – Operating Weights

5 INSTALLATION Jobsite Survey Complete the following checks before installation. 1. Consult local building codes and the NEC (National Electrical Code) ANSI/NFPA 70 for special installa- tion requirements. 2. Determine unit location (from project plans) or select unit location. 3. Check for possible...

Page 6 - Roof Curb Mount —; Ductwork must be attached to curb and

6 Pad--mounted installation — Prepare pad and unit supportsCheck and tighten the bottom condensate drain connection plugRig and place unitConvert unit to side duct connection arrangementInstall field--fabricated ductwork at unit duct openingsInstall outdoor air hoodInstall condensate line trap and p...

Page 8 - MAXIMUM ALLOWABLE; Step 5 — Field Fabricate Ductwork; Do; Step 6 — Rig and Place Unit; UNIT DAMAGE HAZARD

8 A-B 0.5” (13) B-C 1.0” (25) A-C 1.0” (25) MAXIMUM ALLOWABLE DIFFERENCE IN. (MM) C06110 Fig. 4 -- Unit Leveling Tolerances Step 5 — Field Fabricate Ductwork Cabinet return-air static pressure (a negative condition) shall not exceed 0.35 in. wg (87 Pa) with economizer or 0.45 in. wg (112 Pa) without...

Page 9 - Step 7 — Convert to Horizontal and Connect; without; Step 8 — Install Outside Air Hood; Hood

9 Positioning on Curb — Position unit on roof curb so that the following clearances are maintained: 1 / 4 in. (6.4 mm) clearance between the roof curb and the base rail inside the front and rear, 0.0 in. clearance between the roof curb and the base rail inside on the duct end of the unit. This will ...

Page 11 - All units must have an external trap for condensate; Step 10 — Make Electrical Connections; Do not use gas piping as an electrical ground.

11 Step 9 — Install External Condensate Trap and Line The unit has one 3 / 4 -in. condensate drain connection on the end of the condensate pan and an alternate connection on the bottom. See Fig. 13. Unit airflow configuration does not determine which drain connection to use. Either drain connection ...

Page 12 - Units Without Disconnect Option; FIRE HAZARD; to be connected to a 208-v power supply, the control

12 C 11 23 Disconnect per NEC 208/230-1-60 or Disconnect per NEC 11 13 13 23 L1 L2 L3 TB C IFC Direct Drive IFM 208/230-3-60 460-3-60575-3-60 Units Without Disconnect Option Units With Disconnect Option L1 L2 L3 2 4 6 1 3 5 Optional Disconnect Switch Disconnect factory test leads; discard. FactoryWi...

Page 13 - Installing Weatherproof Cover –

13 Convenience Outlet GFCI Pwd-CO Fuse Switch Pwd-CO Transformer Control Box Access Panel C08128 Fig. 17 -- Convenience Outlet Location Installing Weatherproof Cover – A weatherproof while-in-use cover for the factory-installed convenience outlets is now required by UL standards. This cover cannot b...

Page 14 - NOTICE; Convenience Outlet Utilization; Field Control Wiring —

14 NOTICE Convenience Outlet Utilization Maximum Intermittent use : 15 Amps 2 to 3 Hours Maximum Continuous use : 8 Amps 24/7 50HJ542739 3.0 A9225 Fig. 20 -- Convenience Outlet Utilization Notice Label Duty Cycle: the unit--powered convenience outlet has a duty cycle limitation. The transformer is i...

Page 15 - Electric Heaters; Bare Heater Model Number

15 X C G W2 C W2 G W1 O/B/Y2 Y2 R W1 R Y1 Y1 THERMOSTAT (Note 1) (Note 2) Note 1: Typical multi-function marking. Follow manufacturer’s configuration Instructions to select Y2. Note 2: Y2 to Y2 connection required on single-stage cooling units when integrated economizer function is desired. Field Wi...

Page 16 - Single Point Boxes and Supplementary Fuses —; Connections

16 DISCONNECTMOUNTINGLOCATION EMT OR RIGID CONDUIT(FIELD-SUPPLIED) SINGLEPOINT BOX CENTERPOST HEATERCOVERS HEATERMOUNTINGBRACKET HEATERMODULE(LOCATION 2) HEATERMODULE(LOCATION 1) SINGLE POINTBOXMOUNTINGSCREW BRACKET ANDCONDUITDRIP BOOT MAINCONTROLBOX CONTROL WIRE TERMINAL BLOCK MANUAL RESETLIMIT SWI...

Page 17 - System; Sensor

17 Smoke Detectors — Smoke detectors are available as factory--installed options on 551J models. Smoke detectors may be specified for Supply Air only or for Return Air without or with economizer or in combination of Supply Air and Return Air. Return Air smoke detectors are arranged for vertical retu...

Page 18 - Smoke Detector Locations; Location

18 The sensor uses a process called differential sensing to prevent gradual environmental changes from triggering false alarms. A rapid change in environmental conditions, such as smoke from a fire, causes the sensor to signal an alarm state but dust and debris accumulated over time does not. For in...

Page 19 - Completing Installation of Return Air Smoke; Screws

19 Completing Installation of Return Air Smoke Sensor: 1. Unscrew the two screws holding the Return Air Sensor detector plate. See Fig. 34. Save the screws. 2. Remove the Return Air Sensor and its detector plate.3. Rotate the detector plate so the sensor is facing outwards and the sampling tube conn...

Page 22 - Table 3 – RTU--MP Controller Inputs and Outputs; The RTU--MP controller requires the use of a Byrant; Temperature (SAT) Sensor on Small Rooftop Units

22 Table 3 – RTU--MP Controller Inputs and Outputs POINT NAME BACnet OBJECT NAME TYPE OF I/O CONNECTION PIN NUMBERS INPUTS Space Temperature Sensor sptsens AI (10K Thermistor) J20 --- 1, 2 Supply Air Temperature sat AI (10K Thermistor) J2 --- 1, 2 Local Outside Air Temperature Sensor oatsens AI (10K...

Page 25 - COVER REMOVED

25 requirements and terminal locations. See Fig. 47 for typical CO 2 sensor wiring schematic. 8 7 6 5 4 3 2 1 2 1 H G 24 VAC OR 24 VDC NC ALARMRELAYCONTACTS COMNO } 0-10VDCSIG COM 4-20mA + + - + - J3 J4 C08635 Fig. 47 -- Indoor/Outdoor Air Quality (CO 2 ) Sensor (33ZCSENCO2) -- Typical Wiring Diagra...

Page 27 - SW3 Protocol Selection; Baud Rate Selections; Local Access; BACview; Communication LEDs; Handheld Connections

27 SW3 Protocol Selection PROTOCOL DS8 DS7 DS6 DS5 DS4 DS3 DS2 DS1 BACnet MS/TP (Master) Unused OFF OFF OFF ON OFF Select Baud Select Baud Modbus (Slave) Unused OFF OFF ON ON OFF Select Baud Select Baud N2 (Slave) Unused OFF OFF OFF ON ON OFF OFF LonWorks Unused ON ON OFF ON OFF OFF OFF NOTE:DS = Di...

Page 28 - Table 4 – LEDs; The LEDs on the RTU--MP show the status of certain functions; Tx; : Contact your Bryant applications engineer for

28 Table 4 – LEDs The LEDs on the RTU--MP show the status of certain functions If this LED is on... Status is... Power The RTU MP has power Rx The RTU MP is receiving data from the network segment Tx The RTU MP is transmitting data over the network segment DO# The digital output is active The Run an...

Page 29 - Table 5 Unit Wire/Fuse or HACR Breaker Sizing Data; See “Legend and Notes for Table 5” on page 35.

29 Table 5 Unit Wire/Fuse or HACR Breaker Sizing Data UN IT N O M .V --- P h --- H Z IF M TY P E ELEC. HTR P.E. NO C.O. or UNPWR C.O. CRHEATER*** NOM (KW) FLA FLA NO P.E. w/P.E. (pwrd fr/unit) MCA FUSE or HACR BRKR DISC. SIZE MCA FUSE or HACR BRKR DISC. SIZE FLA LRA FLA LRA 551J *0 4 208/ 230 --- 1 ...

Page 35 - Legend and Notes for Table 5; Step 11 — Adjust Factory--Installed Options; Smoke Detectors —

35 Legend and Notes for Table 5 LEGEND: BRKR --- Circuit breaker CO --- Convenient outlet DD --- Direct drive indoor fan motor DISC --- Disconnect FLA --- Full load amps IFM --- Indoor fan motor LRA --- Locked rotor amps MCA --- Minimum circuit amps PE --- Power exhaust PWRD CO --- Powered convenien...

Page 36 - Step 12 — Install Accessories

36 Step 12 — Install Accessories Available accessories include: CurbThru--base connection kit (must be installed before unit is set on curb)Electric heaters and single--poing connection kitsManual outside air damperTwo--Position motorized outside air damperEconoMi$er IV (with control)EconoMi$er2 (wi...