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58SSB |
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Accessory Variable Speed Blower Kit |
Installation Instructions
GENERAL
These instructions cover installation of an ECM blower accessory on 2- and 3-ton cooling 58SSB 060 and 080 furnaces. ECM blower accessory Part No. 58SSB900131 is used on 2-ton cooling 58SSB060 furnace and Part No. 58SSB900141 is used on3-toncooling58SSB080furnace.
Each ECM blower kit comes completely assembled with an ECM blower motor and controller, and interface circuit board. See Table 1 for a list of parts in assembly shown in Fig. 1.
speed. This speed is normally adjusted to midpoint of rating plate temperature rise range. Interface circuit board also powers a Parker indoor thermostat. Part No. HH05ZA001.
Installation of indoor coil expansion valve, and start up and adjustment instructions are covered in Installa tion, Start-Up and Service Instructions for the 38EV,QV outdoor units. See detailed system operation and control in the 38EV,QV system operation and troubleshooting guide.
A WARNING
Turn off power at main disconnect switch before starting installation to avoid possibility of electrical shock.
ECM blower kit is used in conjunction with following variable speed outdoor units:
38EV024320
38EV036320
38QV024320
38QV036320
This ECM blower is controlled by outdoor unit and provides variable airflow across furnace coil in response to variable demand on heat pump or air conditioner. For emergency heat, interface circuit board allows furnace control board to operate ECM blower at a fixed rate of
TABLE OF CONTENTS |
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Page |
INSTALLATION .................................................................. |
1-4 |
SEQUENCE OF OPERATION......................................... |
5 |
TEMPERATURE RISE ADJUSTMENT.................... |
6 |
CARE AND MAINTENANCE .......................................... |
6,7 |
INSTALLATION
The following steps should be performed by a qualified service person:
1.Turn off power at main disconnect.
2.Remove blower door.
3.Remove control box from bottom side of blower shelf and position out of way.
4.Remove electrical leads from numbered side of blower speed selector.
5.Remove screws securing blower assembly to blower shelf and slide blower assembly out of furnace.
6.Unpackage ECM blower assembly and set the minimum and maximum torque settings on ECM blower control via access in lower mounting bracket as shown in Fig. 2.
Table 1 — ECM Blower Kit Parts List
ITEM |
DESCRIPTION |
QUANTITY |
58SSB900131 |
58SSB900141 |
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PART NO. |
PART NO. |
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1 |
Housing-Blower |
1 |
58SSB309891-701 |
58SSB309891-702 |
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2 |
Band-Motor Mount |
1 |
HC98ZZ480 |
HC98ZZ480 |
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3 |
Arm-Motor Mount |
3 |
HC98ZZ242 |
HC98ZZ248 |
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4 |
Wheel-Blower |
1 |
LA22RA101 |
LA22RA100 |
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5 |
T ransformer |
1 |
HT01AW232 |
HT01AW232 |
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6 |
Motor (ECM) |
1 |
HC42SE113 |
HC42SE113 |
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7 |
ECM Motor Controller |
1 |
HR46KH001 |
HR46KH001 |
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8 |
Top Blower Control Bracket |
1 |
58SSB308056-201 |
58SSB308056-201 |
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9 |
Bottom Blower Control Bracket |
1 |
58SSB308056-202 |
58SSB308056-202 |
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10 |
Grommet-Isolator |
3 |
09-0135 |
09-0135 |
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11 |
Interface Board |
1 |
HK42FA002 |
HK42FA002 |
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12 |
Interface Box |
1 |
58SSB309863-401 |
58SSB309863-401 |
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13 |
Interface Box Cover |
1 |
58SSB309864-301 |
58SSB309864-301 |
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14 |
Cutoff, Blower |
1 |
79725-2 |
79725-3 |
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15 |
Electrical Noise Suppressor |
1 |
HK99FA001 |
HK99FA001 |
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Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obiigations. |
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Book|1 14 |
PC101 |
Catalog No. 535-857 |
Printed in U.S.A. |
Form58SSB-5SI |
Pgl |
4-87 |
Replaces:New |
Tab |6a|8a |
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TORQUE SELECT |
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[ 1 |
p n n n n n n n |
r) |
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|j |
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pmnnnnf^ |
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MIN. |
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^ MAX. |
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LIMIT |
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LIMIT |
, (WHITE) |
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(BLACK) |
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FURNACE |
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MIN |
MAX |
SIZE |
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SETTING |
SETTING |
58SSB060 |
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3 |
7 |
58SSB080 |
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3 |
10 |
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Fig. 2 — Torque Setting
7.Slide ECM blower assembly into furnace and tighten screws to secure blower assembly to the blower shelf.
8.Reinstall furnace control box on bottom side of blower shelf.
9.Connect electrical leads from furnace control pre viously used as blower speed selector taps to numbered connector which is panel mounted on the left side of the interface control box. Black lead to position 1, red lead to position 2, white lead to posi tion C.
10.Double-check to make sure main power disconnect is off.
In steps 11 through 14, the 115-v power leads to ECM blower icit connects in parallel with furnace 115-v power supply. To do this:
11. Remove cover of auxiliary junction box.
AUXILIARY |
LOW-VOLTAGE |
JUNCTION BOX |
TERMINAL BLOCK |
12.Remove strain relief securing the power leads in place on the auxiliary J-box.
13.Route power leads from ECM blower kit through opening in back of auxiliary junction box. Dis connect black lead from furnace control at door switch, and connect black lead with 3/16-in. piggy back quick-connect from ECM blower kit in its place. Then reconnect black lead from furnace control to 3/16-in. male quick-connect provided on piggyback connector. Remove wire connecting white lead of furnace control to line voltage common line. Connect white wire from ECM blower kit and reinstall wire nut.
14.Make sure all power leads are secured in place using the strain relief provided with this kit.
15.Reinstall cover to auxiliary junction box.
16.Disconnect all existing thermostat leads from the furnace control board if applicable.
17.Connect W, R, and C from terminal block TB3
labeled, HEAT, on interface circuit board located on front of blower housing to their respective thermostat connections on furnace control board, labeled (W, R, C) using field-supplied thermostat wire cut 6 in. in length and stripped 1 /4 in. on each end. See Fig. 3.
18.Install thermostat following instructions included with outdoor section. For single zone applications, route 6-conductor thermostat wire into furnace through one of the knock-outs in the cabinet. Multi zone applications require only 3-conductor wire.
19.Slide electrical noise suppressor provided, over thermostat wire before making electrical connections (see Fig. 3) at blower assembly.
NOTE; For electrical interference and noise, refer to 38EV,QV outdoor section Installation, Start-Up and Service Instructions.
PARKER INDOOR
THERMOSTAT TERMINALS
► SINGLE
PHASE
ELECTRICAL
NOISE
SUPPRESSOR
ECM BLOWER KIT
INTERFACE BOARD-
FIELD LOW-VOLTAGE WIRING
■ FIELD HIGH-VOLTAGE WIRING
FACTORY LOW-VOLTAGE WIRING
---------------------- 1
THERMOSTAT LINE (SEE FIG. 4a OR FIG. 4b FOR CONNECTIONS)
INTERFACE CABLE
VAR. SPEED CONDENSING
UNIT
NOTE: If any of the original wire as supplied must be replaced, use same type or equivalent wire.
Fig. 3 — Field Highand Low-Voltage Wiring Diagram
INTERFACE BOARD |
PARKER |
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PARKER |
INDOOR THERMOSTAT |
INTERFACE BOARD |
INDOOR THERMOSTAT |
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BUS |
VZD/TSR
4a — SINGLE ZONE |
4b — MULTI-ZONE |
Fig. 4 — Thermostat Connections
20.Strip thermostat wire leads back 1/8-in. and make connections to blower kit interface board as shown in Fig. 4a or 4b. Slide noise suppressor down thermo stat wire and position close to interface board.
21.Route interface cable provided with Model 38EV or QV outdoor unit to furnace, as described in Model 38EV,QV installation instructions.
22.To permit routing of interface cable into furnace blower compartment it is necessary to modify furnace cabinet according to the following procedure, referring to Fig. 5.
a.Provided with kit are 2 sheet metal covers, screws and snap bushing. See Fig. 5. Use one cover as a template. Mark and drill two 1/8-in. diameter mounting screw holes in either side of furnace cabinet.
NOTE: Be sure to locate cable entry hole where cable does not interfere with interior furnace com ponents. Also, before making hole be sure cable reaches proper receptacle (PI) on blower acces sory interface board.
b. Use a chassis punch or similar tool to cut a 1 /2-in. X 1-5/8 in. rectangular cable entry opening between the 2 sheet metal cover mounting screw holes to permit passage of interface cable connector.
c.Mount the 2 sheet metal covers loosely to cabinet with one screw. See Fig. 5.
d.Route interface cable through cable entry hole into furnace blower compartment to receptacle PI of blower accessory interface board. Connector is polarized so it cannot be mounted in wrong direc
tion. Be sure spring clips on connector lock in place to secure connector. Secure cable ground wire to convenient interface board mounting screw.
e.Mount indoor coil solenoid expansion valve (SEV) as described in Model 38EV,QV outdoor section installation instructions. Route 4-lead wire harness from SEV through interface cable entry hole to interface board polarized recep tacle P2.
f.Open snap bushing provided and install busliing around interface cable and 4 SEV leads at cable entry hole with large rim of bushing facing out ward from cabinet.
g.Slide 2 sheet metal covers together around bush ing and secure covers loosely with remaining mounting screw. Adjust cable and leads to allow slack inside cabinet for strain relief.
h.Tighten both sheet metal cover mounting screws with bushing positioned to protect cable and leads from metal edges of cable entry hole.
COVER DISASSEMBLED WITH
SNAP BUSHING ATTACHED TO LEADS
COVER FULLY ASSEMBLED
Fig. 5 — Cable Entry Hole and Cover
23.Peel off backing from wiring diagram and stick on top of previous furnace wiring diagram located on inside of blower access panel.
24.Reinstall control and blower access panels. See Fig. 3 for a wiring diagram showing proper field highand low-voltage wiring. Make all electrical connections in accordance with National Electrical Code and any local codes or ordinances that might apply.
25.Clean 2-in. x 3-in. area next to unit rating plate.
26.Peel backing from auxiliary rating plate and stick to clean area next to unit rating plate.
NOTE: DO NOT apply auxiliary rating plate on top of the unit rating plate. Make sure both rating plates are legible after installation.
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