LENNOX Controls And HVAC Accessories Manual L0806364

User Manual: LENNOX LENNOX Controls and HVAC Accessories Manual LENNOX Controls and HVAC Accessories Owner's Manual, LENNOX Controls and HVAC Accessories installation guides

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LENNOX INSTALLATIONINSTRUCTIONS
502.726M
10/91
Litho U.S,A.
KITS COMMON TO COOLING
AND HEAT PUMP EQUIPMENT
INSTALLATION INSTRUCTIONS INDOOR BLOWER CONTROL KIT (LB-58773DA) USED
WITH HS11, HS14, HP11, HP14 AND HP21 SERIES UNITS
I-SHIPPING AND PACKING LIST
Package I of I contains:
1- Blower control relay (K117)
1- Bag assembly containing:
4-wires
4-wire ties
6-wire nuts
Wires with pigtail leads and 1/4" quick connect terminals
are supplied with kit to provide connections fromkil relay
to unit.
II-APPUCATION
Indoor blower control kit (LB-58773DA) is used to pro-
vide the option of varying indoor blower speeds during
compressor operation, This option is especially impor-
tant in locations with high humidity. The indoor blower
speed control kit provides use of alower indoor speed
dining continuous fen or low speed compressor opera-
tlon, Increasing the effectiveness of humidity removal. A
I'dgherIndoor blower speed which satisfies cfm require-
merits can then be selected for use during high speed
compressor operation.
Ill-INSTALLATION
1- Turn off electrical power at indoor unit disconnect
switch.
2- Use 7/8" knockout to make a mounting hole in the
control box near the existing blower motor relay.
3- Remove nut horn beck of relay, insert wires through
knockout and tighten mounting nuts so tYmtrelay
stays securely in place.
4- Continue with wiring section.
IV-WIRING
NOTE-Figure I shows new Lennox thermostat nomen-
clature versusthe old nomenclature. See figures 2, 3,4, 6
and 8for HS11 and HS14 applications and figures 5, 7
and 9 for HP11, HP14 and HP21 applications.
LENNOX LENNOX
OLD STYLE NEW eTYLE
NOMENCLATURE NOME :NCLATURE
(_ ................ AMBIENT SEN_OR .................
(_ • ,SER_V'ICELIGHT
REVERSING VALVE - ORANGE
(_. I_T_ST_AG_E_CO_M_ES S0R - yEI_LQW.
2ND STAGE COMPRESSOR - BLUE
(_ ........... EMERGENCY HE&T ..............
(_ COMMON - BLACK
2NO STAGE AUX. HEAT - BROWN
®
®
UI_ lrHIB DIAGRAM WHEN TRYING TO MATCH NEW BTYLE TB_T&T
NOMEII_:LATURE TO OLD II"IP/UE THEIqMOITAT NO44 EIICLATURE,
FIGURE 1
(T)]
"(,L) ]
_,1")I
LY_I
,(E'_I
_°.
_C)l
-RED
STSTAGEAUX.HEAT- WH!TE. W_j
INDOOR BLOWER -GREEN -_'G_ ]
A-Low Voltage Wiring
HS11/HS14 Units-Use wire nut to attach one blue relay
coil lead to black wire runningfromY2 of room thermostat
to Y2 of condensing unit. Second blue relay coil lead
should be pigtailed into yellow common lead from T ter-
minal on condensing unit. See figures 2, 3, 4, 6 and 8.
Page 1 ©1991 Lennox InduMzkm Inc.
HP11/HP14/HP21 Units-Use wire nutto splice blue relay
coil leads intowire from terminal M2 of room thermostat.
See figures 5, 7and 9.
B-High Voltage Wirlng-ll_/pical Gas Unit Match-up
1- Run wire fl'omcommon terminal of kit control to door
interlock switch of unit.
2- Run wire from normally closed terminal of kit relay to
teffnlnal 1 of existing indoor biower relay.
3- Use ctm tables In Lennox engineering handbook to
select a speed tap connection for wire from terminal
3 of existing indoor blower relay. This will be the in-
door blower speed for continuous indoor fan opera-
tion end blower speed d_ing low speed compressor
operation.
NOTE-For most effective humidity control, lowest p_s-
slble indoor blower speed should be selected for low
speed compressor operation.
4- Use cfrn tables in Lennox engineering handbook to
select a speed tap connection for wire fromnormally
open contact of kit relay. This will be the Indoor blow-
er speed during high speed compressor operation.
5- Replace access panels and restore electrical power
to unit.
C-High Voltage Wiring - "P/pical Gas Unit with
BCC2 Blower Control
1- Disconnect black blower motor lead wire from termi-
nal "A"of BCC2 board.
2- Runred wire from common terminal of kit relay to ter-
minal",_' of BCC2 control.
3- Cut the quick connect terminal from black blower
motor lead wire, strip it 5/8" and connect it to the
black wire from the normally open terminal of kit relay
using a wire nut. This will be the indoor blower speed
dudng high speed compressor operation.
4- Connect yellow wire (provided) from normally closed
terminal of kit relay to terminal 4, 5, or 6of jack J43
on blower motor. This will be in the indoor blower
speed for low speed compressor operation. Contin-
uous blower speed may be at a different speed. See
figure 3.
NOTE-For most effective humidity control, lowest pos.
slble Indoor blower speed should be selected for low
speed compressor operation.
5- Replace access panels and restore electrical power
to unit.
D-High Voltage Whlng-'lyplcal Electric Heat
Match-up
WI_ for units matched with
CB/CBS18-21 through -51-3P and
CB/CBH19-1P/-2P blower coU units
1- Disconnect wires from terminal 4 and connect therrn
to te_Tninal3 of the existing Indoor blower relay.
2- Disconnect blower motor lead wire from terminal 2
and connect it to terminal 5 of the existing Indoor
blower relay.
3- Disconnect wire from terminal I and connect itto ter-
minal 2 of the existing Indoor blower relay.
4- Connect red wire fromcommon terminal of kit control
relay to terminal 1 of existing indoor blower relay.
5- Connect yellow wire from normally closed terminal
of kit relay to terminal 4 of existing indoor blower
relay.
6- Use CFM table inthe Lennox engineering handbook
to select a speed and blower motor lead wire to con-
nect to terminal 6 of the existing indoor blower relay.
This will be the Indoor blower speed for continuous
indoor fan operation and blower speed during low
speed compressor operation.
NOTE-For most effective humidity control, lowest pos-
sible indoor blower speed should be selected for low
speed compressor operation,
7- Use CFM tables in LennoxEngineering Handbook to
select a speed tap connection for black wire from the
normally open contact of the kit relay. This will be the
indoor blower speed during hLghspeed compressor
operation.
8- Replace access panels and restore electrical power
to unit.
W',rlng for units matched with
CB/CBS18-65-3P blower coils units
1- Remove and discard the red wire from the common
terminal of the kit relay,
2- Disconnect wires from terminal 3 of existing indoor
blower relay and connect them to the common termi-
nal of the kit relay.
3- Connect yellow wire form normally closed terminal
of kit relay to terminal 3 of the existing indoor blower
relay.
4- Use CFM table in the Lennox engineering handbook
to select a speed and blower motor lead wire to con-
nect to terminal 6 of the existing indoor blower relay.
This will be the indoor blower speed for continuous
Indoor fan operation and blower speed during low
speed compressor operalion.
NOTE-For most effective humidity control, lowest pos-
sible indoor blower speed should be selected for low
speed compressor operation.
Page 2
5- UseCFMtablesInLennoxengineeringhandbookto
select a speed tap connection for black wire fromthe
normally open contact of the kit relay. This will be the
Indoor blower speed during high speed compressor
operation.
6- Replace access panels and restore electrical power
to unit.
HS11 OR HS14 CONDENSING UNIT WITH GAS UNIT
BLOWER CONTROL KIT APPLICATION
Lt----_
,,-I'_ "_--nmuOwlm
_t"1"_ " --'RElaY
_1(_ __I
!
or,',",n-l:
,= <cII |IIi
RELAY
ME m_NG
SPEED _,-_
N----@
$1
ROOM THERMOSTAT
SEE ¢m T/UBL£S IN _INEF.,RING
HANDECICIK AND SELECT
PfllATE 81J3WF_ SPEED FOR CON-
TINIJOJS INDOOR FAN OPERA_X_N
AND BLOWER SPEED OOMPRE_
s_q CPERATR)N,
SEE ¢fnl TABLES IN ENGINEERING
HANOBOOKAND SELECTAPPRO-
PRIATEBLOWER SPEED FOR HIGH
lSP_ED COMPAESSOROPERA-
,-Y--h---_ _ _._..,_o_._w_
l l _TERMINALNOMENCLATUREAND
TI#o...ou..
)1 ] ,Bx I
Ir-----_ I I
Ii-T(_,
I_.'_-":_'
I_ ch_I n
IL------""aI I
_ I_,_umw T COUMO.I
-,_ _ _J
FIGURE 2
Page 3
HS11ORHS14CONDENSINGUNITWITHGASUNITWITHBCC2BLOWERCONTROL
ANDBLOWERCONTROLKITAPPLICATION
24¥
j_ SEt= cfrn TABLES IN ENGINEERING
AND SELECT APPRO-
PRIA31E BLOWER SPEED FOFI CON-
TINUOUS INDOOR FAN OPERATION
BLOWER SPEED _
_,
_E _ T_S IN E_INEERI_
HANDBOOK AND _CT APPflO*
_ _R _D _ HIGH
SPEED C(_PRESSGFI OPERA-
11ON,
SEE FIGURE FOil NEW VOLTAGE
1
TERMINAL NQ_II_NCLATURE AND
WiRE COLDRS_
AIF HEATING AND LOW SPEED ARE
TO BE THE SAME, CONNECT
JUMPER BETW1EEN $88-1 AND
AIS_H (AS SHOWN). REMOVE UN-
USeD _SPEED 'WIRE
_, II_E =CF_ T_RMINAL IS ON BCC2 2
ONLY_ 1
-L
ll='
c _ k(')) I t
'I
L24V
0/ _LINE YOLT_ FI_.O INSW_M=LB_
"--_4 _LT FIELD I_T_LL_D
J
Page 4
H$11 OR HS14 CONDENSING UNIT WiTH CB18/CBS18-21 THROUGH -51-3P UNITS
AND BLOWER CONTROL KIT APPLICATION
cB(_) _ ..........Y.....I
-"
(3 _tax cl td I
cN1}
SEE FIGURE 1 FOR NE_NVOLTAGE TERMINAL
NOMENCLAI_RE AND WIRF COLOR_
rI
IROOM THERMO-_TAT I $1
•-1-@®®@_ ;
"---i-P-l-- ;. o ,.
I||_HAN{_)_ANDSELECTAPPROPfllATE
/ | | BLOWER SPEED FOR CoN'rlNLJ(Y.JSIN-
/! I _<x_RFANOPERATIONANDBLOWER
/ } /._o Z)URIN(:;LOWSPF_DCOMPRES-
// / A sEE_ -r_LE_aNENQ,NEE_,NQ
/! | _ HAN[_OK AND SELECT N:'F'_OP_F
TI I _ | ATE BLUR SPI_EO FOR HIGH SPEED
._.o'.._,LI q;_,,,,._.YI I
IN_ BL£_I1ER RELAY MAY B_ DESIGNA fHD AS K1
AND HEAT RELAY 1 (HTR 1}AS K2 ON SOME UNIKS
FIGURE 4
HP11, HP14 OR HP21 HEAT PUMP WITH CB18/CBS18-21 THROUGH -51-3P UNITS
AND BLOWER CONTROL KIT APPLICATION
L1
_(,T-........................................................._................'T_'-
-" BLC_NERELAY T B - "
C_x-_-".@- _)_
-_BLOWER /t _" =
r_ BELAY
,, @B(_
c_11)
T1
II I;_,,-_();I l PRIATE_SPE_:.FOR(:X)N-
LI I_;:" .: _I I "nNUOUS_N_(X_,_AN_.A'noN
|I F / I'=B_WE. i I /AND BLOWER SP_ED DURING
11 / IIR_LAY"ll / SPEEDC_ESSORO_._ON
Il! /
/ _ / //_ SEE_ TA_.._S_ _,.._,=_.,.
_, / Y I I _ HANDBOOK AND SELECT APPR_
:_ / I"=;1_| | PRIATE B_JOWER SPEED FOR HIGH
I // _/;l_
I _ I
/J/ _T, _ SEI: FIGURH ' FOR N_
|J | I TERMINAL[ I -- VOLTAGE TERMINAL NO.
I,4X("_I Is_w IIM_u._ _o..._
I"L_-_T /_°um°°R/ I COLORS
!,o +I L_....,,,;=
BbOWER
Iy| | MAY BE [_ESIGNATED AS K1
|| | / AND HEAT RELAY 1(HTRt)
FIGURE 5
Page5
HPll, HP14 OR HP21 HEAT PUMP WITH CB18!CBS18-6S-3P UNITS
AND SLOWER CONTROL KIT APPLICATION
Lt
ce(_)
LL...... TI
F_-QRO(Ok( lIH_WOSI'AT -i
®,_ _ ®1_'
........... J
// I_ .... -, I / -- HANI:_OOK AND S_ELECT
// r • '_' I / PRk_TE _SP_ED FOR CON-
L/ III _. _11 / _._ous,_xx__ o_t_.
]_ F / h _.o_,_.. _ I / N4DSUDW_RSPEEDDURINGLOW
U/ II_Eu_Y_=II / sP_OCO_m_sso_oP_,
/
/('_ / / A SEE_TABLESINENGINEERING
_'_ /Y / / Lk-ZHANC_K_OKANDSELECTN:'PRO-
,_ / _ F-_ //_'rE e_OW_RSPEEOF_ H_H
i_ / _ ntr / /SeS_OOOMmESSmO_ER_t_n
It
I II !_r_
/]|I TERMINAL I -- VOLTAGE TERMINAL NO-
/,_ ("3I Ist_,e tuz_,u_xu__o _ss
/RELAY _I_INDOOR BLOWER RELAY
/"T" / M_ya__S_N_'_DASK_
/ / / /_O HEAT RELAY 1 (H'IR1)
.............. ll._ ASK2 ON SOME uNrrs
FIGURE 7
Page 6
L1
ca(l)
HSll OR HS14 CONDENSING UNIT WITH CBIg/CBH19-1 AND -2P UNITS
AND BLOWER CONTROL KIT APPLICATION
L2
c_1)
I "_'m'rm_°wEn_Y Il J_
IA
L_L
ii
r "1
_J
// //k _E _ ",'_ ,. E_,.E_,.a
I| | _HANDBQOKANDSELECTAPPROPRIATE
// / BLOWERSPEEDFORCONTINUOUSIN-
II/ / / HANOSOOK_O SELECTAP,_o_m-
IL/ .[ / ATEBLOWERSPEEDFORHIGHSPEED
g_ r_ /0 / c_u_essoRoPEP_oN.
J
L_ SEEFIGURE1FORNEWVOLTAGETERMINAL L_ INDOORBLOWERRELAYMAYBE[_SIGNATEDASK1AND
_LATURE AND WIRE COLORS, HEAT RELAYS AS _HTR1) AND (HTR2) ON SC_E UNITS.
FIGURE 8
Ca(_)
HP11, HP14 OR HP21 HEAT PUMP WITH CS19/CBH19-1 AN{) -2P UNITS
AND SLOWER CONTROL KIT APPLICATION
(_ K3-1
Ca(l)
ROOM THERMOSTAT
_I I_ I
II_HANDBOOK AND SELECT _PPRO=
;I/ P_ SLOWE_S_EOFORcoN.
I J / TINUOUS INDOOR FAN OPERATION
JJ /AND BLOWER SPEED DURING L(W_
it/--o-
JI¢J=-_ HANDBOOK AND SELECT APPR(_
|| PRIATE BLOWER SPEED FOR HIGH
j J_EOCOM_ESSORO_noN,
I/3_ SE_ FIGURE 1 FOR NEW
I TERMINAL I _VOLTAGE "_RMINAL
STRIP I MEh_LATURE AND WIRE
Q_ITX)OR I COLORS,
UN_I"
L. .... J
_INDCOR BLOWER RELAY
MAY BE DESIGNATED AS K1
AND HEAT RELAYS AS
_rR_) AND (HTR2) ON
SOME UNITS
FIGURE 9
Page 7

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