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6-461.1
September, 2009
WIRING DIAGRAMS gas-fired, power vented and separated combustion unit heaters
for models HD/HDB, HDS/HDC, PTS/BTS, PTC
THIS MANUAL IS THE PROPERTY OF THE OWNER. PLEASE BE SURE TO LEAVE IT WITH THE OWNER WHEN YOU LEAVE THE JOB.
Modine Manufacturing Company has a continuous product improvement program, and therefore reserves the right to change design and specifications without notice.
WARNING 1. Fuel supply shall be shut-off and the electrical power
disconnected before proceeding with the installation. Failure to do so could result in fire, explosion, electrical shock, or the unit starting suddenly resulting in injury.
2. All units must be wired strictly in accordance with wiring diagram furnished with the unit. Failure to wire this unit according to this wiring diagram could result in a hazard to persons and property. For deviations, contact the factory.
3. All wiring must be done with a wiring material having a temperature rating of at least 105°C.
IMPORTANT 1. The use of this manual is specifically intended for a
qualified installation and service agency. All installation and service of these kits must be performed by a qualified installation and service agency.
2. These instructions must also be used in conjunction with the Installation and Service manual originally shipped with the appliance being converted, in addition to any other accompanying component supplier literature which supersedes these instructions.
Diagram Selection Diagrams are provided for both single and three-phase circuits, and are readily identified in the selection table on page 2. The selection table enables easy selection of the correct wiring diagram after the electrical components of the unit heater have been determined. NOTE: As indicated in every diagram, all wiring must comply with the National Electrical Code and all local codes. All components must agree with their respective power source.
Abbreviations and Symbols
To facilitate interpretation and enable simplification the abbreviations and symbols have been selected as recommended by ANSI (American National Standards Institute) and NEMA (National Electrical Manufacturers Association) standards.
XFMR or TR Transformer H1, H2, etc. Transformer Primary Terminals X1, X2, etc. Transformer Secondary Terminals V Volts Hz Hertz ø Phase RC Relay Contactor Coil G Ground H Hot SW Switch HI High LO Low C Common “J” Box Junction Box S/W Summer/Winter Switch O.L.C. Overload Contacts SPDT Single Pole Double Throw Switch DPDT Double Pole Double Throw Switch VA Volt-Ampere L1, L2, L3 Load Terminals (Connect to Supply Voltage) T1, T2, T3 Motor or Motor Starter Terminals
Wire Color Coding BK Black BR Brown BL Blue R Red W White GY Gray Y Yellow
WIRING DIAGRAM SELECTION
2 6-461.1
Select the correct wiring diagram as follows: 1. Determine the 12 digit unit heater model number. Example: PTS350SS0122 2. Breakdown the model number into the following parts (using the above example):
a. Model: PTS b. Size : 350 c. Power Code: 01 d. Control Code: 22
3. Review the model number breakdown against Table 2.1 to select the correct wiring diagram. For the example in Step 2 above, the correct wiring diagram is located on page 6.
4. Review Table 2.2 to determine if any additional wiring diagrams are necessary based on accessories included. Table 2.1 – Unit Heater Wiring Diagram Page Location Index Type Model Size Power Code Supply Voltage Control
Code Gas Controls Wiring Diagram Page
11 or 21 Single Stage 5H079963B1 3 HD/HDS 30-125 01 115V/1ph
12 or 22 Two Stage 5H079963B2 4 11 or 21 Single Stage 5H079963B1 3
150-350 01 115V/1ph 12 or 22 Two Stage 5H079963B2 4 11 or 21 Single Stage 5H079963B3 5
PTS 400 01 115V/1ph
12 or 22 Two Stage 5H079963B4 6 135-215 01 115V/1ph 11 or 21 Single Stage 5H080716B1 11
Prop
elle
r
PTC 260-310 01 115V/1ph 11 or 21 Single Stage 5H080716B2 12
11 or 21 Single Stage 5H079963B1 3 HDB/HDC 60-125 01 115V/1ph
12 or 22 Two Stage 5H079963B2 4 11 or 21 Single Stage 5H079963B1 3
150 01 115V/1ph 12 or 22 Two Stage 5H079963B2 4 11 or 21 Single Stage 5H080273B1 7
02, 13, 24,35 115/230V/1ph 12 or 22 Two Stage 5H080273B2 8 11 or 21 Single Stage 5H080274B1 9
Blo
wer
BTS 150-400 08, 11, 19, 22, 30, 33, 38,
41, 42, 44, 49, 53, 55, 60, 64, 66, 71, 75, 77
208/230/460/575V/3ph 12 or 22 Two Stage 5H080274B2 10
All propeller models (HD/HDS/PTS/PTC) are Power Code 01 for 115V/60Hz/1ph supply voltage only. To operate the unit on a supply voltage other than 115V/1ph, an accessory step down transformer is required. Refer to the latest revision of Literature #6-567 for instructions on properly wiring the unit heater and transformer.
All blower models (HDB/HDC/BTS) that are operated with a supply voltage other than 115V/1ph, an accessory step down transformer is required. Refer to the latest revision of Literature #6-567 for instructions on properly wiring the unit heater and transformer.
Table 2.2 – Accessory Wiring Diagram Page Location Index
Model Accessory Page All Thermostat with Fan On/Auto Subbase Switching 13
All Thermostat without Fan On/Auto Subbase Switching and Summer/Winter Switch 13
All Wiring Multiple Single Stage Unit Heaters to a Single Thermostat 14
PTC Terminal Board Jumper Removal for Accessory Wiring 14
WIRING DIAGRAMS – MODELS HD/HDB, HDS/HDC, PTS/BTS
6-461.1 3
BLO
WER
MO
TOR
P1-
7
* IN
TEG
RA
TED
CO
NTR
OL
115V
IND
UC
ERM
OTO
RS
PA
RK
IGN
ITO
R
24V
MV
P1-
9P
1-2
PRESSURE
P1-
5P
1-3
SE
C
P1-
6
CO
M
P1-
4
FLAMESENSOR
GASVALVE
ROLLOUT
HIGH LIMIT
THERMOSTAT
L1IN
D
P1-
8W
GN
D
L1L2
CALL FOR HEAT
ROLLOUT
NTR
LN
TRL
NTR
L
NTR
L
L1
EAC
R
FUSE
C
115V
/60H
Z/1Ø
CIR
CU
ITB
REA
KER
(BY
OTH
ER
S) HIGH LIMIT
REF
ERN
OTE
7
115V
Uni
t Pow
er
IND
ICAT
ES T
ERM
INAL
BOA
RD
CO
NN
ECTI
ON
SIN
GLE
STA
GE
, DIR
EC
T S
PAR
K IG
NIT
ION
,10
0% S
HU
T-O
FF, M
ULT
IPLE
RE
TRY
W/ A
UTO
RE
SET
FRO
M L
OC
KOU
T
WIR
ING
LEG
END
FAC
TOR
Y W
IRIN
GIN
TER
NAL
CO
MPO
NEN
T W
IRIN
GFI
ELD
WIR
ING
WIR
E N
UT
LIN
E
24V
*SH
OW
N W
ITH
UN
ITE
D T
ECH
NO
LOG
IES
LAB
EL, S
EE
CH
AR
T FO
R O
THE
R L
ABEL
S
14
7 85
2 36
9
G W R CY
GN
D
O
WH
CO
M
L1, (
BK
)
R
YP
IN 6
120
R
CO
M24
R
FAN
MO
TOR
Y
WH
BK
SE
C
PIN
5Y
XFM
R
PR
ESS
UR
ES
WIT
CH
PE
MO
TOR
LOW
VO
LTA
GE
THE
RM
OS
TAT
(BY
OTH
ER
S)
LIM
ITC
ON
TRO
LGA
SV
ALV
E11
5V/6
0HZ/
1Ø P
OW
ER
CIR
CU
IT B
RE
AK
ER
(BY
OTH
ER
S)
FLA
ME
SE
NS
OR
BL
GR
, (G
)
BK
L2, (WH)
L2, (
WH
)
N E U T R A L
INDL1L1
EA
C
PA
RK
HO
NE
YWE
LLLA
BE
L
SP
AR
KIG
NIT
OR
UT
LAB
EL
IGN
ITIO
NC
ON
TRO
L
CO
M24
VA
CN E U T R A L
IND
XFM
RL1
EA
C/B
LOM1
PA
RK
CO
OL
5H07
9963
B1
RE
V L
LIM
IT C
ON
TRO
L(S
EE
NO
TE 5
)
L1, (BK)
SW
ITC
HRE
FER
NO
TE 7
FLA
ME
RO
LLO
UTS
(SE
E N
OTE
6)
5H07
9963
B1
WIR
ING
DIA
GR
AM
, SIN
GLE
STA
GE
NO
TES
TO
INS
TALL
ER
:
1. A
LL W
IRIN
G M
UST
CO
MP
LY W
ITH
NAT
ION
AL
ELE
CTR
IC C
OD
E AN
D A
LL L
OC
AL C
OD
ES.
2. A
LL C
OM
PON
ENTS
MU
ST A
GR
EE W
ITH
T
HE
IR R
ESP
EC
TIVE
PO
WER
SO
UR
CE
.
3. V
ERIF
Y TH
E P
OW
ER S
OU
RC
E AN
D
TH
E U
NIT
PO
LAR
ITY.
4. U
SE
TYP
E 1
05°C
REP
LAC
EMEN
T W
IRE
3
00V
OR
GR
EAT
ER.
5. U
SED
ON
PR
OPE
LLE
R M
OD
ELS
100
AND
LAR
GER
.
6. T
WO
SW
ITC
HES
: 30-
75, O
NE
SW
ITC
H: 1
00-1
25
NO
T U
SED
ON
150
-400
UN
ITS.
7. O
PTIO
NA
L U
NIT
DIS
CO
NN
ECT
SWIT
CH
.
CAU
TIO
N:
FAIL
UR
E TO
WIR
E T
HIS
UN
IT A
CC
OR
DIN
GTO
TH
IS W
IRIN
G D
IAG
RA
M M
AY R
ESU
LTIN
INJU
RY
TO T
HE
INST
ALL
ER
OR
US
ER.
FOR
DEV
IATI
ON
S C
ON
TAC
T TH
E FA
CTO
RY.
FOR
BLO
WER
MO
TOR
S,
WH
-NEU
TRAL
BK-
HI
BL-
MED
RED
-LO
ATTA
CH
WIR
ES
NO
T U
SED
TO "P
ARK
" TER
MIN
ALS
WIRING DIAGRAMS – MODELS HD/HDB, HDS/HDC, PTS/BTS
4 6-461.1
5H07
9963
B2
BLO
WER
MO
TOR
CO
M
* IN
TEG
RAT
EDC
ON
TRO
L
115V
IND
UC
ERM
OTO
R
SPA
RK
IGN
ITO
R
P3P7
P2G
W1
P4
FLAMESENSOR
LOFIRE
W1
HIGH LIMIT
RP6
GN
D
L1L2
ROLLOUT
IND
FSP8
115V
/60H
Z/1Ø
CIR
CU
ITBR
EAKE
R(B
Y O
THER
S)
W2
P9
24V
24V
HI
IND
HEA
T
L1
HIFIRE
WH
ITE
RO
GE
RS
GA
S V
ALV
E
ROLLOUT
CALL FORHEAT
PR
ES
SU
RE
SWIT
CH
W2
T-S
TAT
HI
CO
MM
HO
NE
YWE
LLG
AS
VA
LVE
HI
LOC
OM
HIGH LIMIT
115V
Uni
t Pow
er
REF
ERN
OTE
7
IND
ICAT
ES T
ERM
INAL
BOA
RD
CO
NN
ECTI
ON
TWO
STA
GE,
DIR
ECT
SPA
RK
IGN
ITIO
N,
100%
SH
UT-
OFF
, MU
LTIP
LE R
ETR
Y W
/ AU
TO R
ESE
T FR
OM
LO
CKO
UT
WIR
ING
LEG
END
FAC
TOR
Y W
IRIN
GIN
TER
NAL
CO
MPO
NEN
T W
IRIN
GFI
ELD
WIR
ING
WIR
E N
UT
LIN
E
24V
14
7 85
2 36
9
G W1 C RY
GN
D
O
WH
CO
M
L1, (
BK
)
R
Y12
0
R
CO
M24
R
FAN
MO
TOR
Y
WH BK
24V
PIN
8Y
XFM
R
PR
ESS
UR
ES
WIT
CH
PE
MO
TOR
CA
LL F
OR
FA
N
LIM
ITC
ON
TRO
L
CO
M11
5V/6
0HZ/
1Ø P
OW
ER
CIR
CU
IT B
RE
AK
ER
(BY
OTH
ER
S)
FLA
ME
SE
NS
OR
BL
BK
L2, (WH)
L2, (
WH
)
FSL1
HE
AT
PA
RKS
PA
RK
IGN
ITO
R
UT
LAB
EL
IGN
ITIO
NC
ON
TRO
L
PA
RK
FLA
ME
RO
LLO
UTS
(SE
E N
OTE
6)
IND
WH
ITE
RO
GE
RS
GA
S V
ALV
EC
OM
HI
M
W2
LOW
VO
LTA
GE
THE
RM
OS
TAT
(BY
OTH
ER
S)
1ST
STA
GE
2ND
STA
GE
CO
M
HO
NE
YW
ELL
GA
S V
ALV
E
HI
LO
LIM
IT C
ON
TRO
L(S
EE
NO
TE 5
)
L1, (BK)
SWIT
CH
REFE
R NO
TE 7
115V
Uni
t Pow
er
WIR
ING
DIA
GR
AM
, TW
O S
TAG
E
NO
TES
TO
INS
TALL
ER:
1. A
LL W
IRIN
G M
UST
CO
MP
LY W
ITH
NAT
ION
AL
ELE
CTR
IC C
OD
E AN
D A
LL L
OC
AL
CO
DES
.
2. A
LL C
OM
PON
ENTS
MU
ST A
GR
EE W
ITH
T
HEI
R R
ESPE
CTI
VE P
OW
ER S
OU
RC
E.
3. V
ERIF
Y TH
E P
OW
ER S
OU
RC
E AN
D
TH
E U
NIT
PO
LAR
ITY.
4. U
SE T
YPE
105°
C R
EPLA
CEM
ENT
WIR
E
300
V O
R G
RE
ATER
.
5. U
SED
ON
PR
OPE
LLER
MO
DEL
S 10
0 AN
D L
AR
GER
.
6. T
WO
SW
ITC
HES
: 30-
75, O
NE
SW
ITC
H: 1
00-1
25
NO
T U
SED
ON
150
-400
UN
ITS.
7. O
PTIO
NAL
UN
IT D
ISC
ON
NEC
T SW
ITC
H.
CAU
TIO
N:
FAIL
UR
E TO
WIR
E T
HIS
UN
IT A
CC
OR
DIN
GTO
TH
IS W
IRIN
G D
IAG
RA
M M
AY R
ESU
LTIN
INJU
RY
TO T
HE
INST
ALL
ER
OR
US
ER.
FOR
DEV
IATI
ON
S C
ON
TAC
T TH
E FA
CTO
RY.
MO
TOR
LE
AD C
OLO
R F
OR
DIR
ECT
DR
IVE
BLO
WE
R M
OTO
RS
ON
LY.
W
H-N
EUTR
AL
BK-
HI
B
L-M
ED
RED
-LO
ATTA
CH
WIR
ES N
OT
USE
DTO
"PAR
K" T
ERM
INAL
S
UN
ITS
ARE
FAC
TOR
Y W
IRED
FOR
HIG
H S
PEE
D O
PER
ATIO
N.
WIRING DIAGRAMS – MODELS HD/HDB, HDS/HDC, PTS/BTS
6-461.1 5
14
7 85
2 36
9
G W R CY
GN
D
O
WH
CO
M
L1, (
BK)
R
YP
IN 6
120
R
CO
M24
R
FAN
MO
TOR
Y
WH
BKSE
C
PIN
5Y
XFM
R
PR
ESS
UR
ESW
ITC
H
PE
MO
TOR
LOW
VO
LTAG
ETH
ER
MO
STA
T(B
Y O
THER
S)
LIM
IT
GA
SVA
LVE
115V
/60H
Z/1Ø
UNIT
PO
WER
CIRC
UIT
BRE
AKER
(B
Y O
THER
S)FL
AM
ESE
NSO
R
BL
BK
L2, (WH)
L2, (
WH
)
N E U T R A L
INDL1L1
EAC
PAR
K
HO
NE
YWEL
LLA
BEL
SPA
RK
IGN
ITO
R
UT
LABE
L
IGN
ITIO
NC
ON
TRO
L
CO
M24
VAC
N E U T R A L
IND
XFM
RL1
EAC
/BLOM
1
PAR
KC
OO
L
LIM
ITC
ON
TRO
L
L1, (BK)
SWIT
CH
REF
ERN
OTE
6
10
68
7
24
3
115V
Uni
t Pow
er
5H07
9963
B3
WIR
ING
DIA
GR
AM
, SIN
GLE
STA
GE,
REL
AY
IND
ICAT
ES T
ERM
INAL
BOA
RD
CO
NN
ECTI
ON
WIR
ING
LEG
END
FAC
TOR
Y W
IRIN
GIN
TER
NAL
CO
MPO
NEN
T W
IRIN
GFI
ELD
WIR
ING
WIR
E N
UT
LIN
E
24V
FAN
MO
TOR
P1-7
* IN
TEG
RA
TED
CO
NTR
OL
115V
PE
MO
TOR
SPAR
KIG
NIT
OR
24V
MV
P1-9
P1-2
PRESSURE
P1-5
P1-3
SEC
P1-6
CO
M
P1-4
FLAMESENSOR
GASVALVE
HIGH LIMIT
THERMOSTAT
L1IN
D
P1-8
W
GN
D
L1L2
CALL FOR HEAT
NTR
LN
TRL
NTR
L
NTR
L
L1
EAC
R
FUSE
C
115V
/60H
Z/1Ø
UN
IT C
IRC
UIT
CIR
CU
IT B
REA
KER
(BY
OTH
ERS
)
HIGH LIMIT
0 1
34
2 68
7
115V
Uni
t Pow
er
See
note
#6
for m
otor
conn
ectio
ns
RE
FER
NO
TE 7
SIN
GLE
STA
GE
, DIR
ECT
SPAR
K IG
NIT
ION
,10
0% S
HU
T-O
FF, M
ULT
IPLE
RET
RY
W/ A
UTO
RE
SET
FR
OM
LO
CK
OU
T
NO
TES
TO
INS
TALL
ER:
1. A
LL W
IRIN
G M
UST
CO
MP
LY W
ITH
NAT
ION
AL
ELE
CTR
IC C
OD
E AN
D A
LL L
OC
AL
CO
DES
.
2. A
LL C
OM
PON
ENTS
MU
ST A
GR
EE W
ITH
T
HEI
R R
ESPE
CTI
VE P
OW
ER S
OU
RC
E.
3. V
ERIF
Y TH
E P
OW
ER S
OU
RC
E AN
D
TH
E U
NIT
PO
LAR
ITY.
4. U
SE T
YPE
105°
C R
EPLA
CEM
ENT
WIR
E
300
V O
R G
RE
ATER
.
5. U
SED
ON
PR
OPE
LLER
MO
DEL
S 10
0 AN
D L
AR
GER
.
6. O
PTIO
NA
L U
NIT
DIS
CO
NN
ECT
SW
ITC
H.
CAU
TIO
N:
FAIL
UR
E TO
WIR
E T
HIS
UN
IT A
CC
OR
DIN
GTO
TH
IS W
IRIN
G D
IAG
RA
M M
AY R
ESU
LTIN
INJU
RY
TO T
HE
INST
ALL
ER
OR
US
ER.
FOR
DEV
IATI
ON
S C
ON
TAC
T TH
E FA
CTO
RY.
FOR
BLO
WER
MO
TOR
S,
WH
-NEU
TRAL
BK-
HI
BL-
MED
RED
-LO
ATTA
CH
WIR
ES
NO
T U
SED
TO "P
ARK
" TER
MIN
ALS
WIRING DIAGRAMS – MODELS HD/HDB, HDS/HDC, PTS/BTS
6 6-461.1
5H07
9963
B4
WIR
ING
DIA
GR
AM
, TW
O S
TAG
E, R
ELA
Y
IND
ICAT
ES T
ERM
INAL
BOA
RD
CO
NN
ECTI
ON
WIR
ING
LEG
END
FAC
TOR
Y W
IRIN
GIN
TER
NAL
CO
MPO
NEN
T W
IRIN
GFI
ELD
WIR
ING
WIR
E N
UT
LIN
E
24V
TWO
STA
GE,
DIR
ECT
SPA
RK
IGN
ITIO
N,
100%
SH
UT-
OFF
, MU
LTIP
LE R
ETR
Y W
/ AU
TO R
ESE
T FR
OM
LO
CKO
UT
14
7 85
2 36
9
G W1 C RY
O
WH
CO
M
R
Y12
0
R
CO
M24
R
FAN
MO
TOR
Y
WH BK
24V
PIN
8Y
XFM
R
PRE
SSU
RE
SWIT
CH
PEM
OTO
R
CAL
L FO
R F
AN
LIM
ITC
ON
TRO
L
CO
MFL
AM
ESE
NSO
R
BL
BK
L2, (WH)
FSL1
HEA
T
PAR
KSPAR
KIG
NIT
OR
UT
LAB
EL
IGN
ITIO
NC
ON
TRO
L
PAR
K
IND
WH
ITE
RO
GER
SG
AS
VALV
EC
OM
HI
M
W2
LOW
VO
LTA
GE
THER
MO
STA
T(B
Y O
THER
S)
1ST
STA
GE
2ND
STA
GE
CO
M
HO
NE
YW
ELL
GAS
VA
LVE
HI
LO
LIM
IT C
ON
TRO
L(S
EE N
OTE
5)
10
68
7
24
3
GN
D
L1, (
BK)
115V
/60H
Z/1Ø
UN
IT P
OW
ERC
IRC
UIT
BR
EAK
ER
(BY
OTH
ER
S)
L2, (WH)
L2, (
WH
)
L1, (BK)
SW
ITC
H
REF
ERN
OTE
6
GN
D
115V
Uni
t Pow
er
FAN
MO
TOR
CO
M
* IN
TEG
RAT
ED
CO
NTR
OL
115V
PE
MO
TOR
SPAR
KIG
NIT
OR
P3
P7P2
GW
1P4
FLAMESENSOR
LOFIRE
W1
HIGH LIMIT
RP6
GN
D
L1L2
IND
FSP8
115V
/60H
Z/1Ø
UN
IT P
OW
ERC
IRC
UIT
BR
EAK
ER
(BY
OTH
ER
S)
W2
P924
V
24V
HE
AT
L1
HIFIRE
WH
ITE
RO
GER
SG
AS V
ALV
E
CALL FORHEAT
PRES
SUR
ESW
ITC
H
W2
T-ST
AT
HI
CO
MM
HO
NE
YWEL
LG
AS V
ALV
E
HI
LOC
OM
HIGH LIMIT
GN
D
01
34
268
7
GN
D
115V
Uni
t Pow
er
See
not
e #6
for m
otor
conn
ectio
ns
RE
FER
NO
TE 7
NO
TES
TO
INS
TALL
ER:
1. A
LL W
IRIN
G M
UST
CO
MP
LY W
ITH
NAT
ION
AL
ELE
CTR
IC C
OD
E AN
D A
LL L
OC
AL
CO
DES
.
2. A
LL C
OM
PON
ENTS
MU
ST A
GR
EE W
ITH
T
HE
IR R
ESP
EC
TIVE
PO
WER
SO
UR
CE.
3. V
ERIF
Y TH
E P
OW
ER S
OU
RC
E AN
D
TH
E U
NIT
PO
LAR
ITY.
4. U
SE
TYP
E 10
5°C
REP
LAC
EMEN
T W
IRE
3
00V
OR
GR
EAT
ER.
5. U
SED
ON
PR
OPE
LLER
MO
DEL
S 10
0 AN
D L
ARG
ER.
6. O
PTIO
NAL
UN
IT D
ISC
ON
NEC
T SW
ITC
H.
CAU
TIO
N:
FAIL
UR
E TO
WIR
E T
HIS
UN
IT A
CC
OR
DIN
GTO
TH
IS W
IRIN
G D
IAG
RA
M M
AY R
ESU
LTIN
INJU
RY
TO T
HE
INST
ALL
ER
OR
US
ER.
FOR
DEV
IATI
ON
S C
ON
TAC
T TH
E FA
CTO
RY.
WIRING DIAGRAMS – MODELS HD/HDB, HDS/HDC, PTS/BTS
6-461.1 7
FAN
MO
TOR
P1-
7
* IN
TEG
RAT
ED
CO
NTR
OL
115V
PE
MO
TO
R
SP
AR
KIG
NIT
OR
24V
MV
P1-
9P
1-2
PRESSURE
P1-
5P
1-3
SE
C
P1-
6
CO
M
P1-
4
FLAMESENSOR
GASVALVE
HIGH LIMIT
THERMOSTAT
L1IN
D
P1-8
W
GN
D
L1L2
CALL FOR HEAT
NTR
LN
TRL
NTR
L
NTR
L
L1
EAC
R
FUSE
C
115V
/60H
Z/1Ø
UN
IT C
IRC
UIT
CIR
CU
IT B
RE
AKER
(BY
OTH
ER
S)
HIGH LIMIT
0 1
34
2 68
7
Fact
ory
115V
Uni
t Pow
er P1-
7
* IN
TEG
RA
TED
CO
NTR
OL
115V
24V
MV
P1-
9P
1-2
PRESSURE
P1-
5P
1-3
SE
C
P1-
6
CO
M
P1-
4
FLAMESENSOR
GASVALVE
HIGH LIMIT
THERMOSTAT
P1-8
W
CALL FOR HEAT
NTR
L
L1
R
FUSE
C
HIGH LIMIT
230V
Fan
/Blo
wer
Pow
er O
nly
CO
NTR
OL
CIR
CU
IT M
UST
BE
115V
PO
WER
PE
MO
TO
R
SP
AR
KIG
NIT
OR
L1IN
DN
TRL
NTR
LN
TRL
EAC
See
not
e #6
for m
otor
conn
ectio
ns
GN
D
115V
/60H
Z/1Ø
CO
NTR
OL
CIR
CU
IT P
OW
ER
FRO
M S
TEP
DO
WN
TRAN
SFO
RM
ER
(BY
OTH
ER
S)
FAN
MO
TOR
0 1
34
2 68
7
See
not
e #6
for m
otor
conn
ectio
ns
230V
/60H
Z/1Ø
FAN
CIR
CU
IT P
OW
ER
CIR
CU
IT B
RE
AKE
R(B
Y O
THE
RS
)
L1L2
RE
FER
NO
TE 7
IND
ICA
TES
TER
MIN
AL
BOA
RD
CO
NN
ECTI
ON
SIN
GLE
STA
GE,
DIR
ECT
SPA
RK
IGN
ITIO
N,
100%
SH
UT-
OFF
, MU
LTIP
LE R
ETR
Y W
/ AU
TO R
ESE
T FR
OM
LO
CK
OU
T
WIR
ING
LE
GE
ND
FAC
TOR
Y W
IRIN
GIN
TER
NA
L C
OM
PO
NE
NT
WIR
ING
FIE
LD W
IRIN
GW
IRE
NU
T
LIN
E
24
V
5H080273B1 REV _
*SH
OW
N W
ITH
UN
ITE
D T
EC
HN
OLO
GIE
S L
AB
EL,
SE
E C
HA
RT
FOR
OTH
ER
LA
BE
LS
14
7 85
2 36
9
G W R CY
GN
D
O
WH
CO
M
L1, (
BK)
R
YPI
N 6
120
R
CO
M24
R
FAN
MO
TOR
Y
WH
BK
SEC
PIN
5Y
XFM
R
PRE
SSU
RE
SWIT
CH
PE
MO
TOR
LOW
VO
LTA
GE
THE
RM
OST
AT
(BY
OTH
ER
S)
LIM
ITC
ON
TRO
LGA
SVA
LVE
115V
/60H
Z/1Ø
UN
IT P
OW
ERC
IRC
UIT
BR
EAK
ER
(BY
OTH
ERS)
FLA
ME
SE
NS
OR
BL
GR
, (G
)
BK
L2, (WH)
L2, (
WH
)
N E U T R A L
INDL1L1
EAC
PAR
K
HO
NE
YW
ELL
LAB
EL
SPA
RK
IGN
ITO
R
UT
LAB
EL
IGN
ITIO
NC
ON
TRO
L
CO
M24
VA
CN E U T R A L
IND
XFM
RL1
EA
C/B
LOM1
PAR
KC
OO
L
LIM
IT C
ON
TRO
L(S
EE
NO
TE 5
)
L1, (BK)
SW
ITC
H
REFE
RN
OTE
7
10
68
7
24
3
L1, (
BK)
L2, (
BL)
230V
/60H
Z/1Ø
FAN
CIR
CU
IT P
OW
ERCI
RC
UIT
BRE
AKER
S (B
Y O
THER
S)
See
not
e #6
for m
otor
conn
ectio
ns
>Dis
conn
ect r
elay
pow
er le
ads
(#2
& #
6) fr
om 1
15V
sup
ply
and
conn
ect 2
30V
as
show
n.>A
ll ot
her u
nit p
ower
mus
t be
115V
as
show
n.>S
ee n
ote
#6 fo
r mot
or c
onne
ctio
ns.
230V
Fan
/Blo
wer
Pow
er O
nly
CO
NTR
OL
CIR
CU
IT M
US
T B
E 1
15V
PO
WE
R
Fact
ory
115V
Uni
t Pow
er
14
7 85
2 36
9
G W R CY
GN
D
O
WH
CO
M
R
YP
IN 6
120
R
CO
M24
R
FAN
MO
TOR
Y
WH
BK
SE
C
PIN
5Y
XFM
R
PR
ESS
UR
ES
WIT
CH
PEM
OTO
R
LOW
VO
LTA
GE
THE
RM
OS
TAT
(BY
OTH
ER
S)
LIM
ITC
ON
TRO
L
GAS
VA
LVE
115V
/60H
Z/1Ø
CON
TRO
L C
IRC
UIT
PO
WER
FRO
M S
TEP
DO
WN
TRA
NSF
OR
MER
(BY
OTH
ERS)
FLA
ME
SEN
SO
R
BL
BK
L2, (WH)
N E U T R A L
INDL1L1
EA
C
PA
RK
HO
NEY
WEL
LLA
BE
L
SP
ARK
IGN
ITO
R
UT
LAB
EL
IGN
ITIO
NC
ON
TRO
L
CO
M24
VACN E U T R A L
IND
XFM
RL1
EAC
/BLOM
1
PA
RK
CO
OL
LIM
IT C
ON
TRO
L(S
EE
NO
TE 5
)
L1, (BK)
10
68
7
24
3
See
not
e #6
for m
otor
conn
ectio
ns
5H08
0273
B1
WIR
ING
DIA
GR
AM
, SIN
GLE
STA
GE,
RE
LAY
CAU
TIO
N:
FAIL
UR
E TO
WIR
E TH
IS U
NIT
AC
CO
RD
ING
TO T
HIS
WIR
ING
DIA
GR
AM M
AY R
ESU
LTIN
INJU
RY
TO T
HE
INST
ALL
ER O
R U
SER
.FO
R D
EVIA
TIO
NS
CO
NTA
CT
THE
FAC
TOR
Y.
NO
TES
TO IN
STA
LLER
:
1. A
LL W
IRIN
G M
UST
CO
MPL
Y W
ITH
NAT
ION
AL
E
LEC
TRIC
CO
DE
AN
D A
LL L
OC
AL C
OD
ES.
2. A
LL C
OM
PO
NEN
TS M
US
T A
GR
EE W
ITH
T
HE
IR R
ESPE
CTI
VE
POW
ER S
OU
RC
E.
3. V
ERIF
Y TH
E P
OW
ER
SO
UR
CE
AND
T
HE
UN
IT P
OLA
RIT
Y.
4. U
SE
TYPE
105
°C R
EPLA
CE
ME
NT
WIR
E
300
V O
R G
RE
ATER
.
5. U
SED
ON
PR
OPE
LLER
MO
DEL
S 10
0 AN
D L
AR
GE
R.
6. U
NIT
IS S
HIP
PED
WIR
ED F
OR
115
V.
WH
EN
W
IRIN
G F
OR
230
V FO
LLO
W T
HIS
DIA
GR
AM
AN
D M
OTO
R W
IRE
LABE
LS F
OR
230
V.
7. O
PTIO
NAL
UN
IT D
ISC
ON
NEC
T SW
ITC
H
US
ED O
N 1
15V
UN
ITS
ON
LY.
WIRING DIAGRAMS – MODELS HD/HDB, HDS/HDC, PTS/BTS
8 6-461.1
FAN
MO
TOR
CO
M
* IN
TEG
RAT
ED
CO
NTR
OL
115V
PEM
OTO
R
SPA
RK
IGN
ITO
R
P3
P7
P2
GW
1P
4
FLAMESENSOR
LOFIRE
W1
HIGH LIMIT
RP
6
L1L2
IND
FSP
8W
2P
924
V
24V
HEA
T
L1
HIFIRE
WH
ITE
RO
GER
SG
AS V
ALV
E
CALL FORHEAT
PRES
SUR
ESW
ITC
H
W2
T-ST
ATH
IC
OM
M
HO
NEY
WEL
LG
AS
VALV
E
HI
LOC
OM
HIGH LIMIT
GN
D
01
34
268
7
GN
D
230V
Fan
/Blo
wer
Pow
er O
nly
CO
NTR
OL
CIR
CU
IT M
US
T B
E 11
5V P
OW
ER
FAN
MO
TOR
CO
M
* IN
TEG
RAT
ED
CO
NTR
OL
115V
PEM
OTO
R
SPAR
KIG
NIT
OR
P3
P7
P2
GW
1P
4
FLAMESENSOR
LOFIRE
W1
HIGH LIMIT
RP
6
GN
D
L1L2
IND
FSP
8
115V
/60H
Z/1Ø
UN
IT P
OW
ERC
IRC
UIT
BR
EAK
ER
(BY
OTH
ER
S)
W2
P9
24V
24V
HEA
T
L1
HIFIRE
WH
ITE
RO
GER
SG
AS
VALV
E
CALL FORHEAT
PRES
SUR
ES
WIT
CH
W2
T-ST
ATH
IC
OM
M
HO
NEY
WEL
LG
AS V
ALVE
HI
LOC
OM
HIGH LIMIT
GN
D
01
34
268
7
GN
D
Fact
ory
115V
Uni
t Pow
er
See
note
#6
for m
otor
conn
ectio
ns
See
note
#6
for m
otor
conn
ectio
ns
GN
D
115V
/60H
Z/1Ø
CO
NTR
OL
CIR
CU
IT P
OW
ER
FRO
M S
TEP
DO
WN
TRA
NS
FOR
ME
R (B
Y O
THE
RS
)
230V
/60H
Z/1Ø
FAN
CIR
CU
IT P
OW
ER
CIR
CU
IT B
RE
AKE
R(B
Y O
THE
RS
)
TWO
STA
GE
, DIR
ECT
SPA
RK
IGN
ITIO
N,
100%
SH
UT-
OFF
, MU
LTIP
LE R
ETR
Y W
/ AU
TO R
ESET
FR
OM
LO
CKO
UT
5H080273B2 REV _
14
7 85
2 36
9
G W1 C RY
O
WH
CO
M
R
Y12
0
R
CO
M24
R
FAN
MO
TOR
Y
WH BK
24V
PIN
8Y
XFM
R
PR
ESSU
RE
SW
ITC
H
PEM
OTO
R
CA
LL F
OR
FAN
LIM
ITC
ON
TRO
L
CO
M
FLAM
ESE
NSO
R
BL
BK
L2, (WH)
FSL1
HE
AT
PAR
K
SP
ARK
IGN
ITO
R
UT
LABE
L
IGN
ITIO
NC
ON
TRO
L
PAR
K
IND
WH
ITE
RO
GE
RS
GA
S V
ALVE
CO
M
HI
M
W2
LOW
VO
LTAG
ETH
ERM
OS
TAT
(BY
OTH
ER
S)
1ST
STA
GE
2ND
STA
GE
CO
M
HO
NE
YWE
LLG
AS V
ALV
E
HI
LO
LIM
IT C
ON
TRO
L(S
EE N
OTE
5)
10
68
7
24
3
L2, (WH)
L1, (BK)
L1, (
BK)
L2, (
BL)
230V
/60H
Z/1Ø
FAN
CIR
CU
IT P
OW
ER
CIR
CU
IT B
REA
KER
S (B
Y O
THE
RS)
See
not
e #6
for m
otor
conn
ectio
ns GN
D
>Dis
conn
ect r
elay
pow
er le
ads
(#2
& #
6) fr
om 1
15V
sup
ply
and
conn
ect 2
30V
as
show
n.>A
ll ot
her u
nit p
ower
mus
t be
115V
as
show
n.>S
ee n
ote
#6 fo
r mot
or c
onne
ctio
ns.
230V
Fan
/Blo
wer
Pow
er O
nly
CO
NTR
OL
CIR
CU
IT M
US
T B
E 1
15V
PO
WER
14
7 85
2 36
9
G W1 C RY
O
WH
CO
M
R
Y12
0
R
CO
M24
R
FAN
MO
TOR
Y
WH BK
24V
PIN
8Y
XFM
R
PRE
SSU
RE
SWIT
CH
PE
MO
TOR
CAL
L FO
R F
AN
LIM
ITC
ON
TRO
L
CO
MFL
AME
SEN
SO
R
BL
BK
L2, (WH)
FSL1
HE
AT
PAR
KSP
ARK
IGN
ITO
R
UT
LAB
EL
IGN
ITIO
NC
ON
TRO
L
PAR
K
IND
WH
ITE
RO
GER
SG
AS V
ALV
EC
OM
HI
M
W2
LOW
VO
LTAG
ETH
ER
MO
STA
T(B
Y O
THER
S)
1ST
STA
GE
2ND
STA
GE
CO
M
HO
NE
YWEL
LG
AS
VA
LVE
HI
LO
LIM
IT C
ON
TRO
L(S
EE
NO
TE 5
)
10
68
7
24
3
GN
DL1
, (B
K)11
5V/6
0HZ/
1ØU
NIT
PO
WER
CIR
CU
IT B
RE
AKE
R
(BY
OTH
ER
S)
GR
, (G
)
L2, (WH)
L2, (
WH
)
L1, (BK)
SWIT
CH
REF
ERN
OTE
7
See
not
e #6
for m
otor
conn
ectio
ns GN
D
Fact
ory
115V
Uni
t Pow
er
115V
/60H
Z/1Ø
CONT
ROL
CIR
CUI
T PO
WER
FRO
M S
TEP
DOW
NTR
ANSF
ORM
ER (B
Y O
THER
S)
GN
D
IND
ICA
TES
TER
MIN
AL
BOA
RD
CO
NN
ECTI
ON
WIR
ING
LEG
EN
D
FAC
TOR
Y W
IRIN
GIN
TER
NA
L C
OM
PON
EN
T W
IRIN
GFI
ELD
WIR
ING
WIR
E N
UT
LIN
E
24
V
*SH
OW
N W
ITH
UN
ITE
D T
EC
HN
OLO
GIE
S L
AB
EL,
SE
E C
HA
RT
FOR
OTH
ER
LA
BE
LS
WIR
ING
DIA
GR
AM, T
WO
STA
GE,
REL
AY
5H08
0273
B2
CAU
TIO
N:
FAIL
UR
E TO
WIR
E TH
IS U
NIT
AC
CO
RD
ING
TO T
HIS
WIR
ING
DIA
GR
AM M
AY R
ESU
LTIN
INJU
RY
TO T
HE
INST
ALL
ER O
R U
SER
.FO
R D
EVIA
TIO
NS
CO
NTA
CT
THE
FAC
TOR
Y.
NO
TES
TO IN
STA
LLER
:
1. A
LL W
IRIN
G M
UST
CO
MPL
Y W
ITH
NAT
ION
AL
E
LEC
TRIC
CO
DE
AN
D A
LL L
OC
AL C
OD
ES.
2. A
LL C
OM
PO
NEN
TS M
US
T A
GR
EE W
ITH
T
HE
IR R
ESPE
CTI
VE
POW
ER S
OU
RC
E.
3. V
ERIF
Y TH
E P
OW
ER
SO
UR
CE
AND
T
HE
UN
IT P
OLA
RIT
Y.
4. U
SE
TYPE
105
°C R
EPLA
CE
ME
NT
WIR
E
300
V O
R G
RE
ATER
.
5. U
SED
ON
PR
OPE
LLER
MO
DEL
S 10
0 AN
D L
AR
GE
R.
6. U
NIT
IS S
HIP
PED
WIR
ED F
OR
115
V.
WH
EN
W
IRIN
G F
OR
230
V FO
LLO
W T
HIS
DIA
GR
AM
AN
D M
OTO
R W
IRE
LABE
LS F
OR
230
V.
7. O
PTIO
NAL
UN
IT D
ISC
ON
NEC
T SW
ITC
H
US
ED O
N 1
15V
UN
ITS
ON
LY.
WIRING DIAGRAMS – MODELS HD/HDB, HDS/HDC, PTS/BTS
6-461.1 9
FAN
MO
TOR
P1-
7
* IN
TEG
RAT
ED
CO
NTR
OL
115V
PEM
OTO
R
L2
SP
ARK
IGN
ITO
R
24V
MV
P1-
9P
1-2
PRESSURE
P1-5
P1-
3
SE
C
P1-
6
CO
M
P1-
4
FLAMESENSOR
GASVALVE
HIGH LIMIT
THERMOSTAT
L1IN
D
P1-
8W
GN
D
CALL FOR HEATL1
NTR
LN
TRL
NTR
L
NTR
L
L1
EAC
R
FUSE
C
L1L2
3Ø/6
0HZ
FAN
PO
WER
CIR
CU
ITC
IRC
UIT
BR
EAK
ERS
(BY
OTH
ERS)
L3
C
L3L2
L1
T1T2
T33Ø
Star
ter(B
y Othe
rs) See
not
e #5
for m
otor
conn
ectio
ns
115V
/60H
Z/1Ø
CO
NTR
OL
CIR
CU
IT P
OW
ERFR
OM
STE
P D
OW
NTR
ANSF
OR
MER
(BY
OTH
ERS)
CAU
TIO
N:
FAIL
UR
E TO
WIR
E T
HIS
UN
IT A
CC
OR
DIN
GTO
TH
IS W
IRIN
G D
IAG
RAM
MAY
RES
ULT
IN IN
JUR
Y TO
TH
E IN
STA
LLER
OR
US
ER.
FOR
DE
VIAT
ION
S C
ON
TAC
T TH
E FA
CTO
RY.
IND
ICAT
ES
TER
MIN
ALBO
AR
D C
ON
NEC
TIO
N
SIN
GLE
STA
GE
, DIR
ECT
SPA
RK
IGN
ITIO
N,
100%
SH
UT-
OFF
, MU
LTIP
LE R
ETR
Y W
/ AU
TO R
ES
ET
FRO
M L
OC
KOU
T
WIR
ING
LEG
END
FAC
TOR
Y W
IRIN
GIN
TER
NAL
CO
MPO
NEN
T W
IRIN
GFI
ELD
WIR
ING
WIR
E N
UT
115V
3 P
hase
24V
*SH
OW
N W
ITH
UN
ITE
D T
EC
HN
OLO
GIE
S L
AB
EL,
SE
E C
HA
RT
FOR
OTH
ER
LA
BE
LS
14
7 85
2 36
9
G W R CY
GN
D
O
WH
CO
M
R
YP
IN 6
120
R
CO
M24
R
FAN
MO
TOR
Y
WH
BK
SE
C
PIN
5Y
XFM
R
PR
ES
SU
RE
SW
ITC
H
PE
MO
TOR
LOW
VO
LTA
GE
THE
RM
OS
TAT
(BY
OTH
ER
S)
LIM
ITC
ON
TRO
LGA
SV
ALV
E
FLA
ME
SE
NS
OR
BL
BK
L2, (WH)
N E U T R A L
INDL1L1
EA
C
PA
RK
HO
NE
YWE
LLLA
BE
L
SP
AR
KIG
NIT
OR
UT
LAB
EL
IGN
ITIO
NC
ON
TRO
L
CO
M24
VA
CN E U T R A L
IND
XFM
RL1
EA
C/B
LOM1
PA
RK
CO
OL
L1, (BK)
SWIT
CH
REFE
RNO
TE 7
L1L2
3Ø/6
0HZ
FAN
CIR
CU
IT P
OW
ER
CIR
CU
IT B
RE
AK
ER
S
(BY
OTH
ER
S)
L3
C
L3L2
L1
T1T2
T33Ø
Sta
rter
(By O
thers)
See
not
e #5
for m
otor
conn
ectio
ns
115V
/60H
Z/1Ø
CO
NTR
OL
CIR
CUI
T PO
WER
FRO
M S
TEP
DOW
NTR
ANSF
ORM
ER (B
Y O
THER
S)
5H080274B1 REV. ~
5H08
0274
B1
WIR
ING
DIA
GR
AM
, SIN
GLE
STA
GE,
3 Ø
NO
TES
TO
INS
TALL
ER:
1. A
LL W
IRIN
G M
UST
CO
MP
LY W
ITH
NAT
ION
AL
ELE
CTR
IC C
OD
E AN
D A
LL L
OC
AL
CO
DES
.
2. A
LL C
OM
PON
ENTS
MU
ST A
GR
EE W
ITH
T
HEI
R R
ESPE
CTI
VE P
OW
ER S
OU
RC
E.
3. V
ERIF
Y TH
E P
OW
ER S
OU
RC
E AN
D
TH
E U
NIT
PO
LAR
ITY.
4. U
SE T
YPE
105°
C R
EPLA
CEM
ENT
WIR
E
300
V O
R G
RE
ATER
.
5. M
AKE
MO
TOR
CO
NN
ECTI
ON
S P
ER T
HE
M
OTO
R W
IRE
DIA
GR
AM.
6. N
A
7. O
PTIO
NAL
UN
IT D
ISC
ON
NEC
T SW
ITC
H.
WIRING DIAGRAMS – MODELS HD/HDB, HDS/HDC, PTS/BTS
10 6-461.1
CAU
TIO
N:
FAIL
UR
E TO
WIR
E T
HIS
UN
IT A
CC
OR
DIN
GTO
TH
IS W
IRIN
G D
IAG
RAM
MAY
RES
ULT
IN IN
JUR
Y TO
TH
E IN
STA
LLER
OR
USE
R.
FOR
DEV
IATI
ON
S C
ON
TAC
T TH
E FA
CTO
RY.
NO
TES
TO
INS
TALL
ER
:
1. A
LL W
IRIN
G M
UST
CO
MPL
Y W
ITH
NAT
ION
AL
ELE
CTR
IC C
OD
E AN
D A
LL L
OC
AL
CO
DES
.
2. A
LL C
OM
PON
ENTS
MU
ST A
GR
EE
WIT
H
TH
EIR
RES
PEC
TIV
E PO
WER
SO
UR
CE.
3. V
ERIF
Y TH
E P
OW
ER S
OU
RC
E A
ND
T
HE
UN
IT P
OLA
RIT
Y.
4. U
SE
TYP
E 1
05°C
REP
LAC
EMEN
T W
IRE
3
00V
OR
GR
EATE
R.
5. M
AKE
MO
TOR
CO
NN
ECTI
ON
S P
ER T
HE
M
OTO
R W
IRE
DIA
GR
AM.
FAN
MO
TOR
CO
M
* IN
TEG
RAT
EDC
ON
TRO
L
115V
PE
MO
TOR
SP
AR
KIG
NIT
OR
P3P7
P2G
W1
P4
FLAMESENSOR
LOFIRE
W1
HIGH LIMIT
RP
6
GN
D
L2
IND
FSP8
W2
P9
24V
24V
HEA
T
L1
HIFIRE
WH
ITE
RO
GE
RS
GA
S V
ALV
E
CALL FORHEAT
PR
ES
SU
RE
SWIT
CH
W2
T-S
TAT
HI
CO
MM
HO
NE
YWE
LLG
AS
VA
LVE
HI
LOC
OM
GN
D
L1L2
3Ø/6
0HZ
FAN
PO
WER
CIR
CU
CIR
CU
IT B
RE
AKER
S(B
Y O
THE
RS
)
L3
C
L3L2
L1
T1T2
T33Ø
Star
ter(B
y Othe
rs)
See
note
#5
for m
otor
conn
ectio
ns
115V
/60H
Z/1Ø
CO
NTR
OL
CIR
CU
IT P
OW
ER
FRO
M S
TEP
DO
WN
TRAN
SFO
RM
ER (B
Y O
THE
RS)
L1
TWO
STA
GE
, DIR
ECT
SP
ARK
IGN
ITIO
N,
100%
SH
UT-
OFF
, MU
LTIP
LE R
ETR
Y W
/ AU
TO R
ES
ET F
RO
M L
OC
KO
UT
14
7 85
2 36
9
G W1 C RY
O
WH
CO
M
R
Y12
0
R
CO
M24
R Y
WH BK
24V
PIN
8Y
XFM
R
PR
ES
SU
RE
SW
ITC
H
PE
MO
TOR
CA
LL F
OR
FA
N
LIM
ITC
ON
TRO
L
CO
MFL
AM
ES
EN
SO
R
BL
BK
L2, (WH)
FSL1
HE
AT
PA
RKS
PA
RK
IGN
ITO
R
UT
LAB
EL
IGN
ITIO
NC
ON
TRO
L
PA
RK
IND
WH
ITE
RO
GE
RS
GA
S V
ALV
EC
OM
HI
M
W2
LOW
VO
LTA
GE
THE
RM
OS
TAT
(BY
OTH
ER
S)
1ST
STA
GE
2ND
STA
GE
CO
M
HO
NE
YWE
LLG
AS
VA
LVE
HI
LO
GN
D
L2, (WH)
L1, (BK)
FAN
MO
TOR
L1L2
3Ø/6
0HZ
FAN
CIR
CU
IT P
OW
ER
CIR
CU
IT B
RE
AK
ER
S
(BY
OTH
ER
S)
L3
C
L3L2
L1
T1T2
T33Ø
Star
ter(B
y Othe
rs)
See
not
e #5
for m
otor
conn
ectio
ns
115V
/60H
Z/1Ø
CONT
ROL
CIR
CUI
T PO
WER
FRO
M S
TEP
DO
WN
TRAN
SFO
RM
ER (B
Y O
THER
S)
5H080274B2 REV. ~
WIR
ING
DIA
GR
AM, T
WO
STA
GE,
3 Ø
IND
ICAT
ES
TER
MIN
ALBO
AR
D C
ON
NEC
TIO
N
WIR
ING
LEG
END
FAC
TOR
Y W
IRIN
GIN
TER
NAL
CO
MPO
NEN
T W
IRIN
GFI
ELD
WIR
ING
WIR
E N
UT
115V
3 P
hase
24V
5H08
0274
B2
WIRING DIAGRAMS – MODEL PTC
11 6-461.1
IND
ICAT
ES T
ERM
INAL
BOA
RD
CO
NN
ECTI
ON
WIR
ING
LE
GEN
D
FAC
TOR
Y W
IRIN
GIN
TER
NA
L C
OM
PON
EN
T W
IRIN
GFI
ELD
WIR
ING
WIR
E N
UT
LIN
E
24V
*SH
OW
N W
ITH
UN
ITE
D T
ECH
NO
LOG
IES
LAB
EL, S
EE C
HA
RT
FOR
OTH
ER
LAB
ELS
5H08
0716
B1
WIR
ING
DIA
GR
AM, P
TC
PE
LIM
ITC
ON
TRO
LM
AN
UAL
RE
SET
14
7 85
2 36
9
G W R CY
GN
D
O
W
CO
M
R
YPI
N 6
120
R
CO
M24
R Y
BL
SEC
PIN
5Y
XFM
R
PR
ESS
UR
ESW
ITC
H
PE
MO
TOR
GR
N
GAS
VALV
E
115V
/60H
Z/1Ø
PO
WE
RC
IRC
UIT
BR
EAK
ER(B
Y O
THE
RS
)
FLAM
ES
ENSO
R
BL
GR
, (G
)
L2, (W)
N E U T R A L
INDL1L1
PAR
K
HO
NEY
WE
LLLA
BE
L
SPA
RK
IGN
ITO
RU
TLA
BEL
IGN
ITIO
NC
ON
TRO
L
CO
M24
VA
CN E U T R A L
IND
XFM
RL1
EAC
/BLOM
1
PAR
KC
OO
L
5H080716B1 REV C
L1, (BK)
115V
Uni
t Pow
er
LOW
VO
LTAG
ETH
ER
MO
STA
T(B
Y O
THE
RS
)
R
W
UN
IT L
IMIT
CO
NTR
OL
AUTO
RE
SET
AMB BL
UPOW
ER
CA
LL F
OR
HE
AT
GA
S VA
LVE
OP
EN
R
BK
BK
Y
W
W
BK
GY
EAC
L1, (
BK)
L2, (
WH
)
W
FAN
MO
TOR
T2T1
FC
GV
R
W
BK
Y
BR W
PE L
IMIT
CO
NTR
OL
MA
NU
ALR
ESET
P1-
7
* IN
TEG
RAT
EDC
ON
TRO
L
115V
DIS
CO
NN
ECT
SWIT
CH
SPA
RK
IGN
ITO
R
24V
MV
BLU
EG
AS
VA
LVE
OP
EN
P1-
2
PRESSUREP1-
5P1
-3
SEC
P1-
6
CO
M
P1-
4
FLAME SENSOR
GAS VALVE
HIGH LIMITAUTO RESET
THER
MO
STAT
L1IN
D
P1-
8W
GN
D
L1L2
CALL FORHEAT
NTR
LN
TRL
NTR
L
NTR
L
L1
EAC
R
FUSE
C
115V
/60H
Z/1Ø
CIR
CU
IT B
RE
AKER
(BY
OTH
ER
S)
115V
Uni
t Pow
er
GR
OU
ND
P1-
9
T2
GR
EE
NP
OW
ER
TO U
NIT
AM
BE
RC
ALL
FO
RH
EA
T
IND
UC
ERM
OTO
RB
LOW
ERM
OTO
R
VC
T1
F
GR
OU
ND
NO
TES
TO
INS
TALL
ER:
1. A
LL W
IRIN
G M
UST
CO
MP
LY W
ITH
NAT
ION
AL
ELE
CTR
IC C
OD
E AN
D A
LL L
OC
AL
CO
DES
.2.
ALL
CO
MPO
NEN
TS M
UST
AG
REE
WIT
H
TH
EIR
RES
PEC
TIVE
PO
WER
SO
UR
CE.
3. V
ERIF
Y TH
E P
OW
ER S
OU
RC
E AN
D T
HE
UN
IT P
OLA
RIT
Y.4.
US
E TY
PE
105°
C R
EPLA
CE
MEN
T W
IRE
300V
OR
GR
EATE
R.
CAU
TIO
N:
FAIL
UR
E TO
WIR
E TH
IS U
NIT
AC
CO
RD
ING
TO
TH
IS W
IRIN
G
DIA
GR
AM M
AY R
ESU
LT IN
INJU
RY
TO T
HE
INS
TALL
ER O
R
USE
R. F
OR
DE
VIAT
ION
S C
ON
TAC
T TH
E FA
CTO
RY.
SIN
GLE
STA
GE
, DIR
EC
T SP
ARK
IGN
ITIO
N,
100%
SH
UT-
OFF
, MU
LTIP
LE R
ETR
YW
/ AU
TO R
ES
ET F
RO
M L
OC
KO
UT
WIRING DIAGRAMS – MODEL PTC
12 6-461.1
WIR
ING
DIA
GR
AM
, PTC
, REL
AY
5H08
0716
B2
IND
ICAT
ES T
ERM
INAL
BOA
RD
CO
NN
ECTI
ON
WIR
ING
LE
GEN
D
FAC
TOR
Y W
IRIN
GIN
TER
NA
L C
OM
PON
EN
T W
IRIN
GFI
ELD
WIR
ING
WIR
E N
UT
LIN
E
24V
PE L
IMIT
CO
NTR
OL
MA
NU
ALR
ESE
T
14
7 85
2 36
9
G W R CY
GN
D
O
W
CO
M
R
YP
IN 6
120
RC
OM
24
R Y
BL
SEC
PIN
5Y
XFM
R
PR
ESS
UR
ESW
ITC
H
PE
MO
TOR
GR
N
GAS
VALV
E
115V
/60H
Z/1Ø
PO
WER
CIR
CU
IT B
RE
AKER
(BY
OTH
ER
S)
FLA
ME
SEN
SOR
BL
GR
, (G
)
L2, (W)
N E U T R A L
INDL1L1
PAR
K
HO
NEY
WE
LLLA
BEL
SPAR
KIG
NIT
OR
UT
LAB
EL
IGN
ITIO
NC
ON
TRO
L
CO
M24
VA
CN E U T R A L
IND
XFM
RL1
EAC
/BLOM
1
PAR
KC
OO
L
5H080716B2 REV C
L1, (BK)
115V
Uni
t Pow
er
LOW
VO
LTAG
ETH
ER
MO
STA
T(B
Y O
THER
S)
R
W
UN
IT L
IMIT
CO
NTR
OL
AUTO
RES
ET
AMB BL
UPOW
ER
CA
LL F
OR
HE
AT
GA
S VA
LVE
OP
EN
R
BK
BK
Y W
W
BK
GY
RE
LAY
EAC
L1, (
BK)
L2, (
W)
W
FAN
MO
TOR
T2T1
FC
GV
01 7 8 6
3 4 2
R
WBL
Y
BK
BR W
*SH
OW
N W
ITH
UN
ITE
D T
ECH
NO
LOG
IES
LAB
EL, S
EE C
HA
RT
FOR
OTH
ER
LAB
ELS
PE L
IMIT
CO
NTR
OL
MAN
UA
LR
ESE
T
P1-
7
* IN
TEG
RAT
EDC
ON
TRO
L
115V
DIS
CO
NN
ECT
SWIT
CH
SPAR
KIG
NIT
OR
24V
MV
BLU
EG
AS
VA
LVE
OP
EN
P1-
2
PRESSUREP1-
5P1
-3
SEC
P1-
6
CO
M
P1-
4
FLAME SENSOR
GAS VALVE
HIGH LIMITAUTO RESET
8
IND
P1-
8W
GN
D
L1L2
NTR
LN
TRL
NTR
L
NTR
L
L1
L1
R
FUSE
C
115V
/60H
Z/1Ø
CIR
CU
IT B
RE
AKER
(BY
OTH
ER
S)
115V
Uni
t Pow
er
GR
OU
ND
P1-
9
GR
EE
NP
OW
ER
TO U
NIT
PEM
OTO
R
76
40
2
1
3
EAC
FAN
MO
TOR
THER
MO
STAT
CALL FORHEAT
T2
AM
BE
RC
ALL
FO
RH
EA
T
VC
T1
F
NO
TES
TO
INS
TALL
ER:
1. A
LL W
IRIN
G M
UST
CO
MP
LY W
ITH
NAT
ION
AL
ELE
CTR
IC C
OD
E AN
D A
LL L
OC
AL
CO
DES
.2.
ALL
CO
MPO
NEN
TS M
UST
AG
REE
WIT
H
TH
EIR
RES
PEC
TIVE
PO
WER
SO
UR
CE.
3. V
ERIF
Y TH
E P
OW
ER S
OU
RC
E AN
D T
HE
UN
IT P
OLA
RIT
Y.4.
US
E TY
PE
105°
C R
EPLA
CE
MEN
T W
IRE
300V
OR
GR
EATE
R.
CAU
TIO
N:
FAIL
UR
E TO
WIR
E TH
IS U
NIT
AC
CO
RD
ING
TO
TH
IS W
IRIN
G
DIA
GR
AM M
AY R
ESU
LT IN
INJU
RY
TO T
HE
INS
TALL
ER O
R
USE
R. F
OR
DE
VIAT
ION
S C
ON
TAC
T TH
E FA
CTO
RY.
SIN
GLE
STA
GE
, DIR
EC
T SP
ARK
IGN
ITIO
N,
100%
SH
UT-
OFF
, MU
LTIP
LE R
ETR
YW
/ AU
TO R
ES
ET F
RO
M L
OC
KO
UT
WIRING DIAGRAMS – THERMOSTAT & SUMMER/WINTER SWITCH
13 6-461.1
Single Stage Thermostat & Summer/Winter Switch Wiring
Y
G
R
C
W
W G
1-STAGE LOW VOLTAGE ROOMSTAT WITH SUB-BASE SWITCHING
(BY OTHERS)R C
W
1-STAGE LOW VOLTAGE ROOMSTAT WITH NO SWITCHING
(BY OTHERS)R C
TERMINAL STRIPON UNIT HEATERSUMMER/WINTER
SWITCH(BY OTHERS)
WINTER
SUMMER
FAN OPERATION:SUMMER - CONTINUOUS FANWINTER - INTERMITTENT FAN ON A CALL FOR HEAT
FAN OPERATION (BASED ON FAN SUB-BASE SWITCH):SWITCH = ON - CONTINUOUSSWITCH = AUTO - INTERMITTENT ON A CALL FOR HEAT
TERMINAL STRIPON UNIT HEATER
1-ST
AGE
RO
OM
STA
TW
ITH
SU
B-B
ASE
FAN
SW
ITC
HSU
MM
ER/W
INTE
R S
WIT
CH
& 1
-STA
GE
RO
OM
STA
TW
ITH
OU
T SU
B-B
ASE
FAN
SW
ITC
H
Y
G
R
C
W
W G
1-STAGE LOW VOLTAGE ROOMSTAT WITH SUB-BASE SWITCHING
(BY OTHERS)R C
FAN OPERATION (BASED ON FAN SUB-BASE SWITCH):SWITCH = ON - CONTINUOUSSWITCH = AUTO - INTERMITTENT ON A CALL FOR HEAT
TERMINAL BOARDON UNIT HEATER
T2 F G
C VT1
MODELS HD/HDB, HDS/HDC, AND PTS/BTS MODEL PTC
W
1-STAGE LOW VOLTAGE ROOMSTAT WITH NO SWITCHING
(BY OTHERS)R C
TERMINAL BOARDON UNIT HEATER
SUMMER/WINTERSWITCH
(BY OTHERS)
FAN OPERATION:SUMMER - CONTINUOUS FANWINTER - INTERMITTENT FAN ON A CALL FOR HEAT
T2 F G
C VT1
WINTER
SUMMER
Two Stage Thermostat & Summer/Winter Switch Wiring
G
W1
C
R
W2
W2 GW1
2-STAGE LOW VOLTAGE ROOMSTAT WITH SUB-BASE SWITCHING
(BY OTHERS)R C
G
W1
C
R
W2
W2W1
NOTE:GENERIC ROOM STAT TERMINALS SHOWN. ACTUAL STAT MAY USE DIFFERENT TERMINALS AND/ORWIRING. PLEASE CONSULT WIRING INSTRUCTIONS FOR STAT FOR PROPER WIRING.
2-STAGE LOW VOLTAGE ROOMSTAT WITH NO SWITCHING
(BY OTHERS)R C
TERMINAL STRIPON UNIT HEATER
SUMMER/WINTERSWITCH
(BY OTHERS)
FAN OPERATION:SUMMER - CONTINUOUS FANWINTER - INTERMITTENT FAN ON A CALL FOR HEAT
FAN OPERATION (BASED ON FAN SUB-BASE SWITCH):SWITCH = ON - CONTINUOUSSWITCH = AUTO - INTERMITTENT ON A CALL FOR HEAT
TERMINAL STRIPON UNIT HEATER
2-S
TAG
E R
OO
M S
TAT
WIT
H S
UB
-BAS
E FA
N S
WIT
CH
SUM
MER
/WIN
TER
SW
ITC
H &
2-S
TAG
E R
OO
M S
TAT
WIT
HO
UT
SU
B-B
ASE
FA
N S
WIT
CH
MODELS HD/HDB, HDS/HDC, AND PTS/BTS
WINTER
SUMMER
Notes on Thermostat and Summer/Winter Switch Wiring: Units are equipped as standard with a controller that activates the unit fan in either of the following ways: • On a call for heat (thermostat closure between R & W
terminals (W1 for 2-stage units) on the unit heater terminal strip (T1 & T2 on the external terminal board for model PTC units). The control automatically recognizes a call for heat as requiring fan operation.
• With switch closure between R & G terminals on the unit heater terminal strip (T1 & G on the external terminal board for model PTC units). The control recognizes this as an override to the fan control based on a call for heat and starts the fan.
The diagrams on this page are arranged as follows: 1. Single stage thermostat with a Fan On/Auto switch for
fan control. 2. Single stage thermostat without a Fan On/Auto switch
and a Summer/Winter switch for fan control. 3. Two stage thermostat with a Fan On/Auto switch for
fan control. 4. Two stage thermostat without a Fan On/Auto switch
and a Summer/Winter switch for fan control. Note: A Summer/Winter switch used on these models does NOT require a control relay as was required on previous models.
WIRING DIAGRAMS – ACCESSORIES
14 6-461.1
Wiring Multiple Single Stage Units to a Single Thermostat
DPDT CONTROLRELAY
(BY OTHERS)
Y
G
R
C
W
W
1-STAGE LOW VOLTAGEROOM STAT (NO SWITCHING)
(BY OTHERS)R
TERMINAL STRIPON UNIT HEATER #1
MODELS HD/HDB, HDS/HDC, AND PTS/BTS MODEL PTC
2 4 3
6 8 7
02 4 36 8 7
1
Y
G
R
C
W
TERMINAL STRIPON UNIT HEATER #2
2 4 3
6 8 7
02 4 36 8 7
1
W
1-STAGE LOW VOLTAGEROOM STAT (NO SWITCHING)
(BY OTHERS)R
2 4 3
6 8 7
02 4 36 8 7
1
2 4 3
6 8 7
02 4 36 8 7
1
T2 F G
C VT1
T2 F G
C VT1
DPDT CONTROLRELAY
(BY OTHERS)
DPDT CONTROLRELAY
(BY OTHERS)
DPDT CONTROLRELAY
(BY OTHERS)
TERMINAL BOARDON UNIT HEATER #1
TERMINAL BOARDON UNIT HEATER #2
TO ADDITIONALUNIT/RELAY PAIRINGS
(IF APPLICABLE)
TO ADDITIONALUNIT/RELAY PAIRINGS
(IF APPLICABLE)
Notes on Wiring Multiple Single Stage Units to a Single Thermostat When two or more unit heaters are controlled by one thermostat, it is necessary to electrically isolate each unit by using relays. If relays are not used, feedback in the low voltage circuits can occur. This feedback may cause operational problems, damage the electrical components in the low voltage circuit, or cause burnout of the low voltage transformers. The figure above shows that the thermostat, powered from the terminal strip of unit heater #1 (UH-1), energizes the relay coil of the first relay (RE-1). When the RE-1 coil is energized, the first set of normally open (NO) contacts of that DPDT relay close and activate the gas controls of UH-1. The second set of normally open (NO) contacts on RE-1 are used to energize the relay coil of the second relay RE-2, powered through the terminal strip of UH-2. The first set of NO contacts on RE-2 close and activate the gas controls of UH-2. If a third unit is to be controlled from the same thermostat, a third relay RE-3 coil is wired to the second set of contacts on RE-2. This procedure is repeated for each additional unit which is to be controlled by the thermostat. Generally, there should be a quantity of DPDT relays that is one less than the quantity of heaters to be controlled.
Accessory Wiring for Model PTC Units
NOTE:FOR FIELD WIRED CONDENSATE PUMP AUX SWITCH AND/OR CONDENSATE DRAINLINE SAFETY OVERFLOW SWITCH, REMOVE TERMINAL BOARD JUMPERS AS FOLLOWS:
-FOR ONE ACCESSORY, REMOVE "T1" TO "C" JUMPER -FOR TWO ACCESSORIES, REMOVE "T1" TO "C" & "C" TO "V" JUMPERS
FOR FURTHER INSTRUCTIONS, REFER TO THE LATEST REVISION OF INSTALLATIONINSTRUCTIONS 6-585 FOR THE CONDENSATE PUMP AND/OR 6-586 FOR THECONDENSATE DRAIN LINE SAFETY OVERFLOW SWITCH.
TERMINAL BOARDON UNIT HEATER
T2 F G
C VT1
ACCESSORYACCESSORY
SEE NOTE BELOWFOR REMOVAL OF
JUMPER BARS
6-461.1 15
THIS PAGE INTENTIONALLY LEFT BLANK
Commercial Products Group • Modine Manufacturing Company • 1500 DeKoven Avenue • Racine, Wisconsin, USA 53403-2552 Phone: 1.800.828.4328 (HEAT) • www.modine.com © Modine Manufacturing Company 2009 6-461.1 09/09 Litho in USA
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