Reznor MAPSII Series REDA Users Manual Manual do Utilizador descarregar pdf (Página 4)

Form O-MAPS II, P/N 209179 R7, Page 4

WARNING: Turn off the power before performing all maintenance procedures (except to

check refrigerant pressure and temperature). Lock disconnect switch in OFF position. If the

system has a heat section, when you turn off the power supply, turn off the gas. See Hazard

Levels, page 3.

NOTE: If replacement parts are required, use only factory-authorized parts.

For information, call 800-695-1901 or go to www.RezSpec.com

Models RDCA & RDDA with a gas-red heat section (beginning of the

heating season) - See Paragraph 9.:

NOTE: If equipped with an optional Model JHUP curb duct furnace,

these same maintenance procedures apply to the duct furnace.

 Clean all dirt and grease from the combustion air openings and venter

assembly.

 Check the burner and heat exchanger for scale, dust, or lint accumulation.

Clean as needed.

 Check the gas valves to ensure that gas ow is being shutoff completely.

Models RECA & REDA with an electric heat section (beginning of the

heating season) - See Paragraph 10.

 Check the wiring connections.

 Check the heat section and elements for dust or lint accumulation. Care

fully clean as needed.

2.0 Maintenance

Requirements

(cont'd)

Maintenance

Schedule (cont'd)

TUBING SECTION

• Low Refrigerant Pressure Cutouts

• High Refrigerant Pressure Cutouts

• Filter Driers

• Liquid Line Service Gauge Ports

COMPRESSOR SECTION

• Ckt A Compressor

• Ckt B Compressor

• Ckt C Compressor

• Discharge & Suction Service Ports

• Optional Hot Gas Bypass Valve(s)

HIGH VOLTAGE ELECTRICAL

COMPARTMENT

1) Blower Motor Contactor or Starter

2) Control Transformers (as required)

3) Dehumidication Compressor

Contactor (RDA, RDDA, REDA)

4) Condenser/Compressor Contactor

5) Optional Phase Loss/Phase Rever-

sal Control (optional beginning

10/05; standard prior to 10/05)

6) Optional Damper Motor

Transformer

7) Optional Over/Under Voltage

Control

8A&B) Condenser Motor Capacitors

9) Optional Convenience Outlet

(requires separate supply line)

AUXILIARY COMPARTMENT

10) Digital Controller (FX05 or FX06)

• Optional Damper Motor

• Outside Air Relative Humid-

ity Transmitter (Std RDA/

RDDA/REDA; Optional

RCA/RDCA/RECA)

Models RDCA & RDDA With Gas

Heat Section (FIGURE 1A only):

21) Venter Assembly

22) Single-Stage Gas Valves

23) Optional Modulating Gas Valve

24) Optional Low Gas pressure

Switch

25) Optional High Gas Pressure

Switch

Models RECA & REDA With

Electric Heat Section (FIGURE

1B only):

26) Fuse Block/Fuses

27) Contactor

28) Low Voltage Terminals

29) Manual Reset Limit

30) Auto Reset Limit

FIELD INSTALLED

• Discharge Air Sensor (supply duct)

• Optional Return Air Firestat (duct)

• Optional Discharge Air Firestat

(duct)

• Optional Smoke Detector (duct)

• Optional wall-mounted controls

11) Air Proving Pressure Switch

12&13) Optional Control Relays

14) Optional Dirty Filter Switch

15) Optional Time Clock or BAS Card

16) Humidity Input Converter

Models RDCA & RDDA With Gas

Heat Section (FIGURE 20 only):

17) Combustion Air Pressure Switch

18) Ignition Control

19) Optional Power Signal Converter

20) Venter Motor Capacitor (line

voltage)

BLOWER SECTION

• Blower Motor

Models RDCA & RDDA With Gas

Heat Section (FIGURE 1A only):

• Limit Control (capillary type)

COIL SECTION

• Evaporator Coils

• Thermal Expansion Valves

• Froststat (one per cooling circuit)

• Optional Subcooling Valves

(RCA/RDCA/RECA)

FILTER AND INLET AIR

SECTION

• Inlet Air, Humidity, & Override

Sensors

• Ckt D or Dh Compressor

1 2 3 4 5 6 7 8 9 ... 27 28

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