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1 -. September, 9 II DIMS gas-fired, power vented and separated combustion unit heaters for models HD/HDB, HDS/HD, PS/BS, P I. 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.. ll 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.. ll wiring must be done with a wiring material having a temperature rating of at least. IMP. he use of this manual is specifically intended for a qualified installation and service agency. ll installation and service of these kits must be performed by a qualified installation and service agency.. hese 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. he selection table enables easy selection of the correct wiring diagram after the electrical components of the unit heater have been determined. bbreviations and Symbols o facilitate interpretation and enable simplification the abbreviations and symbols have been selected as recommended by SI (merican ational Standards Institute) and M (ational lectrical Manufacturers ssociation) standards. XFM or ransformer H, H, etc. ransformer Primary erminals X, X, etc. ransformer Secondary erminals V Volts Hz Hertz ø Phase elay ontactor oil round H Hot S Switch High ow ommon J Box Junction Box S/ Summer/inter Switch... verload ontacts SPD Single Pole Double hrow Switch DPD Double Pole Double hrow Switch V Volt-mpere,, oad erminals (onnect to Supply Voltage),, Motor or Motor Starter erminals ire olor oding Black B Brown Blue ed hite ray ellow : s indicated in every diagram, all wiring must comply with the ational lectrical ode and all local codes. ll components must agree with their respective power source. S M IS H P F H. PS B S V I IH H H V H JB. Modine Manufacturing ompany has a continuous product improvement program, and therefore reserves the right to change design and specifications without notice.

2 II DIM SI Select the correct wiring diagram as follows:. Determine the digit unit heater model number. xample: PSSS. Breakdown the model number into the following parts (using the above example): a. Model: PS b. Size : c. Power ode: d. ontrol ode:. eview the model number breakdown against able. to select the correct wiring diagram. For the example in Step above, the correct wiring diagram is located on page.. eview able. to determine if any additional wiring diagrams are necessary based on accessories included. able. nit Heater iring Diagram Page ocation Index ype Model Size Power ode Supply Voltage Propeller Blower HD/HDS - V/ph PS P - V/ph V/ph ontrol iring as ontrols Page ode Diagram or Single Stage H99B or wo Stage H99B or Single Stage H99B or wo Stage H99B or Single Stage H99B or wo Stage H99B - V/ph or Single Stage HB - V/ph or Single Stage HB HDB/HD - V/ph V/ph or Single Stage H99B or wo Stage H99B or Single Stage H99B or wo Stage H99B or Single Stage HB BS,,, /V/ph or wo Stage HB -,, 9,,,,, or Single Stage HB 9,,, 9,,,, ///V/ph,,,, or wo Stage HB ll propeller models (HD/HDS/PS/P) are Power ode for V/Hz/ph supply voltage only. o operate the unit on a supply voltage other than V/ph, an accessory step down transformer is required. efer to the latest revision of iterature #- for instructions on properly wiring the unit heater and transformer. ll blower models (HDB/HD/BS) that are operated with a supply voltage other than V/ph, an accessory step down transformer is required. efer to the latest revision of iterature #- for instructions on properly wiring the unit heater and transformer. able. ccessory iring Diagram Page ocation Index Model ccessory Page ll hermostat with Fan n/uto Subbase Switching ll hermostat without Fan n/uto Subbase Switching and Summer/inter Switch ll iring Multiple Single Stage nit Heaters to a Single hermostat P erminal Board Jumper emoval for ccessory iring -.

3 II DIMS MDS HD/HDB, HDS/HD, PS/BS II BK (B HS) F V nit Power M M SPK II V * ID S V P- P- P- P- P- P- P-9 P- HMS F H IMI SS S VV SS MV H IMI II D F II I P II FID II I I V IS MI BD I S VV SS SPK II, (), (H), () SIH F P II BK (B HS) M V HMS (B HS) H SS SIH PI PI V S H M XFM IMI SI S, DI SPK III, % SH-FF, MIP / S FM K *SH IH ID HIS, S H F H S, (H) III H M PK / XFM PK IMI (S ) H99B V, () S (S ) F MS, H- - -MD D- S IS:. II MS P IH I I D D DS.. PS MS IH HI SIV P S. H IS SD "PK" MIS. VIF H P S D H I PI.. S PM I V. I: FI I S I DI S II DIM M S I IJ H IS S. F DVIIS H F.. SD P MDS D.. SIHS: -, SIH: - SD - IS.. PI I DIS SIH. H99B II DIM, SI S -.

4 II DIMS MDS HD/HDB, HDS/HD, PS/BS II BK (B HS) V nit Power F SPK II M M V * ID V V P P9 P P P P P H IMI SS FI H99B F FI SS SIH -S M S H IMI II D F II I P II FID II I S M I V H IS MI BD I V nit Power SS, (H), () P II BK (B HS) SPK II SIH F III M F H SS SIH PI V H M XFM IMI S, DI SPK III, % SH-FF, MIP / S FM K H, (H), () S S D S PK V HMS (B HS) PK IMI (S ) S (S ) M D F DI DIV MS. H- - -MD D- H IS SD "PK" MIS IS F ID F H SD I. I: FI I S I DI S II DIM M S I IJ H IS S. F DVIIS H F. S IS:. II MS P IH I I D D DS.. PS MS IH HI SIV P S.. VIF H P S D H I PI.. S PM I V.. SD P MDS D.. SIHS: -, SIH: - SD - IS.. PI I DIS SIH. II DIM, S -.

5 II DIMS MDS HD/HDB, HDS/HD, PS/BS II D F II I P II FID II I I V IS MI BD I S VV V nit Power SS SPK II SIH F, (), (H) I P II BK (B HS) V HMS (B HS) H SS SIH PI PI V S H M IMI M XFM, (H) H M III PK / XFM PK IMI M I II II BK (B HS) M SPK II V * ID S V P- P- P- P- P- P- P-9 P- MV H99B II DIM, SI S,, () H IMI HMS F H IMI SS S VV SS SI S, DI SPK III, % SH-FF, MIP / S FM K F MS, H- - -MD D- H IS SD "PK" MIS S IS:. II MS P IH I I D D DS.. PS MS IH HI SIV P S.. VIF H P S D H I PI.. S PM I V. I: FI I S I DI S II DIM M S I IJ H IS S. F DVIIS H F.. SD P MDS D.. PI I DIS SIH. See note # V nit Power F -.

6 II DIMS MDS HD/HDB, HDS/HD, PS/BS II D F II I P II FID II I I V IS MI BD I S M H V nit Power SS, (), (H) I P II BK (B HS) SPK II SIH F F S S D S H III SS SIH PI V H M IMI S, DI SPK III, % SH-FF, MIP / S FM K M XFM H99B II DIM, S,, (H) PK PK V HMS (B HS) IMI (S ) V M SPK II M * ID V P P9 See note # P P P P P, () H IMI SS FI I P II BK (B HS) V SS SIH F FI -S M S H IMI S IS:. II MS P IH I I D D DS.. PS MS IH HI SIV P S.. VIF H P S D H I PI.. S PM I V. I: FI I S I DI S II DIM M S I IJ H IS S. F DVIIS H F.. SD P MDS D.. PI I DIS SIH. F V nit Power H -.

7 II DIMS MDS HD/HDB, HDS/HD, PS/BS M SPK II V M * ID MV P- P-9 P- V SS P- P- P- P- S S VV SS HMS H IMI P- F I II II BK (B HS) SS H IMI Factory V nit Power V * ID S V P- P- P- P- MV P- P-9 P- S VV SS HMS H IMI P- F H IMI II D F II I P II FID II I I V S VV IS MI BD I Factory V nit Power SS SPK II SIH F SI S, DI SPK III, % SH-FF, MIP / S FM K, (), (), (H) I P II BK (B HS) F III H V H HMS (B HS) M PK SS SIH PI V S PI M H XFM M See note # IMI V Fan/Blower Power nly II MS B V P V/HZ/Ø II P II BK (B HS) II P FM SP D M SFM (B HS) M SPK II See note # *SH IH ID HIS, S H F H S HB V _, (), (H) / XFM PK See note # IMI (S ) V Fan/Blower Power nly II MS B V P >Disconnect relay power leads (# & #) from V V/HZ/Ø II P, () supply and connect V as shown. II BKS, () >ll other unit power must be V as shown. (B HS) >See note #. SS S VV SPK II P II FM SP D SFM (B HS) V HMS (B HS) IMI SS SIH PI H V S PI M H XFM M, (H) IMI (S ) H M / XFM III PK PK, () See note # I: FI I S I DI S II DIM M S I IJ H IS S. F DVIIS H F. S IS:. II MS P IH I I D D DS.. PS MS IH HI SIV P S.. VIF H P S D H I PI.. S PM I V.. SD P MDS D.. I IS SPD ID F V. H II F V F S DIM D M I S F V.. PI I DIS SIH SD V IS. HB II DIM, SI S, -.

8 II DIMS MDS HD/HDB, HDS/HD, PS/BS S, DI SPK III, % SH-FF, MIP / S FM K Factory V nit Power S M H SS SPK II I P II BK (B HS) M III F H S S D S PK V V SPK II M * ID V P P9 P P P P P V V V Fan/Blower Power nly II MS B V P M * ID SPK II M V P P9 P P P P P SS SIH H IMI SS F FI FI -S M S H IMI H H IMI SS F FI FI S SS SIH SS SIH PI -S M H IMI V H M M XFM H See note # IMI >Disconnect relay power leads (# & #) from V supply and connect V as shown. >ll other unit power must be V as shown. >See note #. S M H V Fan/Blower Power nly II MS B V P SS SPK II V/HZ/Ø II P II BKS (B HS), (), () V/HZ/Ø II P II BK (B HS) II P FM SP D SFM (B HS) F S S D S H III See note # HB V _ SS SIH IMI PI V H M M XFM, (H) PK V HMS (B HS) IMI (S ) PK, () See note #, (), (H) II D F II I P II FID II I I V IS MI BD I Factory V nit Power, (), (), (H) SIH F I P II BK (B HS) V HMS (B HS) PK See note # IMI (S ) II P FM SP D SFM (B HS) I: FI I S I DI S II DIM M S I IJ H IS S. F DVIIS H F. S IS:. II MS P IH I I D D DS.. PS MS IH HI SIV P S.. VIF H P S D H I PI.. S PM I V.. SD P MDS D.. I IS SPD ID F V. H II F V F S DIM D M I S F V.. PI I DIS SIH SD V IS. HB *SH IH ID HIS, S H F H S II DIM, S, -.

9 II DIMS MDS HD/HDB, HDS/HD, PS/BS Ø/HZ P II II BKS (B HS) II P FM SP D SFM (B HS) SPK M II Ø Starter (By thers) V M * ID S V P- P- P- P- P- P- P-9 P- HMS F H IMI SS S VV SS MV II D F II I P II FID II I V Phase V IS MI BD I Ø/HZ II P II BKS (B HS) S VV SS SPK II SIH F V HMS (B HS) H SS SIH PI PI V S H M IMI SI S, DI SPK III, % SH-FF, MIP / S FM K I: FI I S I DI S II DIM M S I IJ H IS S. F DVIIS H F. M XFM *SH IH ID HIS, S H F H S See note #, (H) III H M PK / XFM PK, () HB V. ~ II P FM SP D SFM (B HS) Ø Starter (By thers) See note # S IS:. II MS P IH I I D D DS.. PS MS IH HI SIV P S.. VIF H P S D H I PI.. S PM I V.. MK M IS H M I DIM... PI I DIS SIH. HB II DIM, SI S, Ø -. 9

10 II DIMS MDS HD/HDB, HDS/HD, PS/BS S IS:. II MS P IH I I D D DS.. PS MS IH HI SIV P S.. VIF H P S D H I PI. I: FI I S I DI S II DIM M S I IJ H IS S. F DVIIS H F.. S PM I V.. MK M IS H M I DIM. V M M SPK II * ID P P P P P H IMI SS FI V Ø/HZ P I II BKS (B HS) II P FM SP D SFM (B HS) Ø Starter (By thers) See note # V P9 P SS SIH F FI Ø/HZ II P II BKS (B HS) S M H SS SPK II II P FM SP D SFM (B HS) III F H SS SIH IMI PI V M H S, DI SPK III, % SH-FF, MIP / S FM K XFM -S M S H, (H) S S D S PK Ø Starter (By thers), () V HMS (B HS) PK See note # M II DIM, S, Ø HB V. ~ II D F II I P II FID II I V Phase V IS MI BD I HB -.

11 II DIMS MD P II D F II I P II FID II I I V IS MI BD I V nit Power SS III H SPK II M S VV SS SIH PI V S PI M / XFM PK PK P XFM IMI M S, () P II BK (B HS) *SH IH ID HIS, S H F H S HB II DIM, P HB V, (), () M I IMI S V HMS (B HS) V F B MB F, (H), () II BK (B HS) V nit Power M M IMI DIS SPK SIH II M D D S V * ID S V P- P- P- P- P- P- P-9 P- F H IMI S SS SS I: FI I S I DI S II DIM M S I IJ H IS S. F DVIIS H F. S IS:. II MS P IH I I D D DS.. PS MS IH HI SIV P S.. VIF H P S D H I PI.. S PM I V. SI S, DI SPK III, % SH-FF, MIP / S FM K MV F P I HMS V MB F -.

12 II DIMS MD P II D F II I P II FID II I I V IS MI BD I V nit Power SS III H SPK II M S VV SS SIH PI V S PI M / XFM PK PK XFM IMI M S P, () P II BK (B HS) HB II DIM, P, HB V, (), () M I IMI S V HMS (B HS) B V F MB F, (), () II BK (B HS) *SH IH ID HIS, S H F H S DIS SIH V nit Power IMI SPK M M II D S M V * ID S V P- P- P- P- P- P- P-9 P- H IMI S SS SS MV HMS V P I F I: FI I S I DI S II DIM M S I IJ H IS S. F DVIIS H F. S IS:. II MS P IH I I D D DS.. PS MS IH HI SIV P S.. VIF H P S D H I PI.. S PM I V. SI S, DI SPK III, % SH-FF, MIP / S FM K F MB F -.

13 II DIMS HMS & SMM/I SIH Single Stage hermostat & Summer/inter Switch iring MDS HD/HDB, HDS/HD, D PS/BS MD P -S M S IH SB-BS SIH -S V M S IH SB-BS SI (B HS) I (BSD SB-BS SIH): SIH = - IS SIH = - IMI F MI SIP I -S V M S IH SB-BS SI (B HS) I (BSD SB-BS SIH): SIH = - IS SIH = - IMI F F V MI BD I SMM/I SIH & -S M S IH SB-BS SIH -S V M S IH SI (B HS) I: SMM - IS I - IMI F SMM/I SIH (B HS) I SMM MI SIP I -S V M S IH SI (B HS) I: SMM - IS I - IMI F SMM/I SIH (B HS) I SMM MI BD I F V wo Stage hermostat & Summer/inter Switch iring -S M S IH SB-BS SIH SMM/I SIH & -S M S IH SB-BS SIH -S V M S IH SB-BS SI (B HS) -S V M S IH SI (B HS) MDS HD/HDB, HDS/HD, D PS/BS I (BSD SB-BS SIH): SIH = - IS SIH = - IMI F : I M S MIS SH. S M S DIFF MIS D/ II. PS S II ISIS F S F P II. I: SMM - IS I - IMI F SMM/I SIH (B HS) I SMM MI SIP I MI SIP I otes on hermostat and Summer/inter Switch iring: nits are equipped as standard with a controller that activates the unit fan in either of the following ways: n a call for heat (thermostat closure between & terminals ( for -stage units) on the unit heater terminal strip ( & on the external terminal board for model P units). he control automatically recognizes a call for heat as requiring fan operation. ith switch closure between & terminals on the unit heater terminal strip ( & on the external terminal board for model P units). he control recognizes this as an override to the fan control based on a call for heat and starts the fan. he diagrams on this page are arranged as follows:. Single stage thermostat with a Fan n/uto switch for fan control.. Single stage thermostat without a Fan n/uto switch and a Summer/inter switch for fan control.. wo stage thermostat with a Fan n/uto switch for fan control.. wo stage thermostat without a Fan n/uto switch and a Summer/inter switch for fan control. ote: Summer/inter switch used on these models does require a control relay as was required on previous models. -.

14 II DIMS SSIS iring Multiple Single Stage nits to a Single hermostat MDS HD/HDB, HDS/HD, D PS/BS MD P -S V M S ( SI) (B HS) MI SIP I # -S V M S ( SI) (B HS) MI BD I # F V DPD (B HS) DPD (B HS) F DDII I/ PIIS (IF PPI) DPD (B HS) MI SIP I # DDII I/ PIIS (IF PPI) DPD (B HS) V MI BD I # otes on iring Multiple Single Stage nits to a Single hermostat hen 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. his feedback may cause operational problems, damage the electrical components in the low voltage circuit, or cause burnout of the low voltage transformers. he figure above shows that the thermostat, powered from the terminal strip of unit heater # (H-), energizes the relay coil of the first relay (-). hen the - coil is energized, the first set of normally open () contacts of that DPD relay close and activate the gas controls of H-. he second set of normally open () contacts on - are used to energize the relay coil of the second relay -, powered through the terminal strip of H-. he first set of contacts on - close and activate the gas controls of H-. If a third unit is to be controlled from the same thermostat, a third relay - coil is wired to the second set of contacts on -. his procedure is repeated for each additional unit which is to be controlled by the thermostat. enerally, there should be a quantity of DPD relays that is one less than the quantity of heaters to be controlled. ccessory iring for Model P nits S B F MV F JM BS F V MI BD I SS SS : F FID ID DS PMP X SIH D/ DS DI I SF VF SIH, MV MI BD JMS S : -F SS, MV "" "" JM -F SSIS, MV "" "" & "" "V" JMS F FH ISIS, F H S VISI F ISI ISIS - F H DS PMP D/ - F H DS DI I SF VF SIH. -.

15 S P II F K -.

16 ommercial Products roup Modine Manufacturing ompany DeKoven venue acine, isconsin, S - Phone:... () Modine Manufacturing ompany /9 itho in S