Service Manual

ManualsBrandsAirQuest ManualsAir Conditioning3.5 Ton 16 SEER Air Conditioner System

SERVICE AND MAINTENANCE FAN COILS

496 08 8001 02 7

Specifications subject to change without notice.

Fuse Data: 5−amp automotive−type ATC/ATO (tan) at 32Vac,

200 percent current opening time of five seconds maximum.

Electrical Connections

Twenty−one 0.110−in pin terminals are used to provide

programming selections for operating modes of ECM 5.0. The

6 selection modes are listed below. For additional information,

refer to Easy Select Configuration Taps section.

AUX Heat Range—(Violet Wire)

AC/HP Size—(Blue Wire) Type—(Orange Wire)

AC/HP CFM Adjust—(Black Wire)

AC/HP Time Delay—(Grey Wire)

Continuous Fan—(Yellow Wire)

SEQUENCE OF OPERATION

A. Continuous Fan Mode

The thermostat closes circuit R to G. The unit delivers the

airflow selected for fan only operation.

B. Cooling Mode—Single Speed or Two−Speed High

Thermostat closes circuits R to G, R to Y/Y2 and R to O (heat

pump only). A circuit R to Y1 is required for two−speed high

operation. Airflow delivered the airflow selected by AC/HP

SIZE selection and CFM ADJUST selection.

C. Cooling Mode—Two−Speed Low

Thermostat closes R to G and R to Y1 and R to O (heat pump

only). Unit delivers two−speed low airflow for AC/HP SIZE and

CFM ADJUST selected.

D. Cooling + Dehumidify Mode

J1 jumper must be pulled from Easy Select Board. Control

closes R to G, R to Y/Y2, and R to O (heat pump only) and

open R to DH. Dehumidification is active when 24Vac is

removed from DH terminal. Unit delivers 20 percent less

airflow.

E. Super Dehumidify Mode

This mode is only activated when the control closes R to Y/Y2,

R to O (heat pump only) and opens R to DH and R to G. This

signals the fan coil to run at minimum airflow for maximum

humidity removal. The control will cycle the equipment 10

minutes on and 10 minutes off until satisfied.

Table 1 – Motor and Modules

Model Size

Motor Type

Current Blower Motor

P/N

Required Control Module

Replacement Kit Number

FVM4X2400 (Series B) ECM 5.0 1185246 1185326

FVM4X3600 (Series B) ECM 5.0 1185247 1185327

FVM4X4800 (Series B) ECM 5.0 1185248 1185328

FVM4X6000 (Series B) ECM 5.0 1185249 1185329

Figure 5 − Easy Select Board 1185358

YYWWX

AUX/HEAT KW/CFM

AC/HP SIZE

AC/HP CFM ADJUST

ON/OFF DELAY

CONTINUOUS FAN

HEATER/MOTOR

AUX1 HUM1

AUX2

24VAC

HUM2

LO MED HI YEL

SYSTEM TYPE

SEC1

EASY SELECT

SEC2

5 AMP.

MAX.

D5D2

HK61EA006

STI

YEL

PL1

GRY

WHT

BLK

ORN

BLU

VIO

0-30

1075

0-20

875

0-10

725

0-5

625

036 030 024 018

AC HP-COMFORT HP-EFF

NOM LO HI

ENH

Y/Y